DWMEIGI's studio photograph of the white MG1703, a fat tire electric tricycle, in a pool of light in a charcoal studio, under the headline Fat tires. Three wheels., with a badge reading 60 miles at 12 mph, 300 lb in all, on the throttle, level pavement, computed

Fat-tire electric tricycle · 750 W Bafang geared front hub, twist throttle, five assist levels · 48 V 18.2 Ah pack, 873.6 Wh · 20 x 4.0 Kenda tires on all three wheels · Shimano 7-speed · front and rear baskets, 58 L · DWMEIGI's own top speed 20 mph · rated to 330 lb · $1,499 · verified November 11, 2026

Quick Answer — The DWMEIGI MG1703 is a $1,499 fat tire electric tricycle with a 750 W Bafang front hub, a twist throttle, DWMEIGI's own 20 mph top speed and an 873.6 Wh battery. With 300 lb aboard, trike included, the throttle alone computes to 60 miles at 12 mph on level pavement; DWMEIGI's own figure on pure electric is 45.

It sits inside the e-bike definition in 24 states and DC at that 20 mph (the law). The saddle tops out at 38 inches, so riders of about 5'0" to 5'4" reach the formula height most often (the fit tables), and DWMEIGI's manual sets the youngest rider at 18.

Our MG1703 listing sells it at $1,499 in white or black, and shipping is free within the contiguous United States. This button checks out the white trike; the black one has the same frame, battery and baskets.

Buy the white MG1703, $1,499

What this review covers

Specification · What it is · Fit · Motor · Battery · Range · Gears · Brakes and fork · Tires · Baskets · Assembly · The Mercer fit test · UL · Recalls · Class and law · Green and red flags · Verdict · Checklist · Buying it from us · FAQ · Limitations · Bottom line

How we verified this DWMEIGI MG1703 review

Every MG1703 figure here starts in DWMEIGI's own documents and is recomputed: its product page, its MG1703 electronics page, the MG1703 user manual and its warranty policy. The range and fit tables are our arithmetic on those documents, and each caption names its assumptions.

We sell this trike, so read the red flags with the same care as the green ones. Part of our e-bike reviews.

Written by Milad Ghobadibeygvand, BScN (Western University, 2014). Corrections: support@redtailebikes.com.

The DWMEIGI MG1703 as DWMEIGI prints it

DWMEIGI publishes the MG1703's motor, battery, top speed, load and full size chart, and three of its own figures disagree with each other, so both readings of each are printed below. DWMEIGI sells the machine as the "MG1703-ZEUS 3 Wheel Fat Tire Electric Trike"; we call it the MG1703 on this page.

Part DWMEIGI's words
Motor "750W", a "48V750W BAFANG brushless geared hub motor, max torque 80NM"
Battery "48V18.2AH(873.6Wh)", "lithium 2600mah cells", "rated over 600 charge cycles"
Top speed "20 MPH"
Range "up to 45 miles per charge (pure electric mode)", "60 miles" on PAS mode
Load "330 Lbs Max Load"; the FAQ also says "We recommend a max weight of 400lbs"
Throttle and assist "Variable Speed Control With Twist Throttle"; "Walking Mode, Pedal Assistant & Twist Throttle"
Controller "48V 22A Controller" on the product page; "48V750W with 25A current" on the electronics page
Charging "4-5 Hours" on the product page; "6 hours" on the electronics page; "about 4-6 hours" in the manual
Gears "SHIMANO 7 speed", "48T chain wheel, 170mm crank length"
Brakes "TEKTRO mechanical brake caliper", levers "with motor cutoff switch, parking brake clamp"
Fork "50 mm travel with lockout and preload adjustment"
Frame "step through carbon steel frame"
Tires "KENDA K1167 20'' x 4''"
Baskets front "Max load 5kg"; rear "Max load 25kg, with a waterproof basket bag"; "58L big storage space"
Size "Total length 75"", "Wheelbase 50"", "Seat height 32"-38"", "Handlebar height 41-44"", "Reach 24"", "Rearwheel length 31""
Rider "a rider height of 5'2"-6'3" and less than 330lbs"

From DWMEIGI's product page (its specification card, size chart and FAQ), electronics page and manual; no weight for the trike itself is printed in any of them.

DWMEIGI's studio photograph of the black MG1703 from its drive side, the rear basket bag and the front basket fitted

The drive side, as DWMEIGI photographs it: the chain runs from the crank to the derailleur on the near rear wheel, and the motor sits in the front hub.

A fat tire electric tricycle with a 20 mph throttle

The MG1703 is a fat tire electric tricycle for adults: a step-through trike on 4-inch tires, built to carry a rider and a load at up to DWMEIGI's own 20 mph, on the throttle or with the pedals. On three wheels it stays upright when you stop, and the 4-inch tires put its weight on a wider patch of ground than a narrow tire (DWMEIGI's description calls the frame "Sturdy&Low-Step").

DWMEIGI writes that the design is "fit for wet stones, muddy trails, beaches or snowy mountains", and it gives the trike two baskets for errands, "fishing, camping or take your pets". The battery holds 873.6 Wh, which is why its computed range stays long at a trike's speeds (the range tables).

It is the fat-tire trike in DWMEIGI's lineup. The MG2302 Silverado Urban is the city trike with a 14-inch step and a reverse gear, and the MG2301 Silverado HD is the fat-tire trike that folds.

DWMEIGI's three-quarter studio photograph of the white MG1703, its rear basket bag closed

The white MG1703 in DWMEIGI's photograph: the step-through is the drop between the saddle and the bars.

Who it is built for: anyone after a low step-through with a twist throttle on three 4-inch tires, for the errands, trails and beaches DWMEIGI names. DWMEIGI fits riders of 5'2" to 6'3"; find your own row in the fit tables before you order the MG1703.

Will the MG1703 fit you?

Most riders of about 5'0" to 5'4" can set the MG1703's saddle at the formula height of 109% of inseam; above that, the 38-inch top of the seat range runs out for more riders at each inch, though DWMEIGI's own window runs to 6'3".

The formula is Hamley and Thomas's, the bodies are the 6,068 adults of the US Army's ANSUR II survey, and the frame is measured on DWMEIGI's size photograph.

  1. Measure your inseam: stand with your back to a wall, a hardcover book pressed up between your legs, and measure from its top edge to the floor.
  2. Find your row in the saddle table below, then check the standover and grip rows beside it.
  3. Set the saddle on arrival with the heel check: your heel on the pedal at the bottom of the stroke, your leg straight.

Will the saddle go high enough (or low enough) for me?

At 5'4", 60 of 100 riders reach 109% of inseam with the saddle at its top; at 5'6", 17 of 100 do. DWMEIGI's size chart gives the seat height as 32 to 38 inches from the ground, and the table counts how many riders of each height can set the saddle at the formula height inside that range.

Your height Typical inseam Saddle height, median rider At 109% At 106%
5'0" 27.1–29.7 in 35.6 in 100 of 100 100 of 100
5'2" 28.0–31.1 in 36.7 in 90 of 100 98 of 100
5'3" 28.7–31.6 in 37.3 in 77 of 100 96 of 100
5'4" 29.1–32.2 in 37.7 in 60 of 100 88 of 100
5'5" 29.7–32.6 in 38.3 in 38 of 100 71 of 100
5'6" 30.2–33.5 in 38.9 in 17 of 100 49 of 100
5'7" 30.7–33.9 in 39.5 in 5 of 100 25 of 100
5'8" 31.1–34.3 in 40.0 in 2 of 100 13 of 100
5'10" 32.2–35.5 in 41.2 in 0 of 100 0 of 100
5'11" 32.9–36.1 in 41.8 in 0 of 100 0 of 100
6'0" 33.2–36.7 in 42.4 in 0 of 100 0 of 100
6'1" 33.9–37.2 in 43.1 in 0 of 100 0 of 100
6'2" 34.3–37.5 in 43.5 in 0 of 100 0 of 100
6'3" 35.3–38.0 in 44.2 in 0 of 100 0 of 100

Saddle height measured from the ground; 109% of inseam from the pedal axle (Hamley and Thomas 1967) and 106%, the low end of the 106 to 109% range Ferrer-Roca and colleagues studied; DWMEIGI's 32 to 38 inch range; the 170 mm crank DWMEIGI prints; bracket height measured on its size photograph.

At 5'5" the riders the post does not reach sit a median of about 0.9 in low, at 5'6" about 1.2 in, at 5'8" about 2.0 in and at 5'10" about 3.2 in.

DWMEIGI's own window, 5'2" to 6'3", is printed in its FAQ and stands beside these rows. A taller rider inside it can still ride the trike with a lower saddle than the formula sets, pedaling with more knee bend; the rows say how far below the formula that saddle sits.

Can I put a foot down at a stop?

At 5'2", 95 of 100 riders clear the frame by 10.5 inches or more. DWMEIGI prints no step height, so the lowest top edge of the main tube was measured on its size photograph at 17.6 inches, where it meets the seat tube.

Your height Typical inseam Clearance over the frame
5'0" 28.4 in 9.5 in or more for 95 of 100 riders
5'2" 29.5 in 10.5 in or more for 95 of 100 riders
5'3" 30.1 in 11.2 in or more for 95 of 100 riders
5'4" 30.5 in 11.5 in or more for 95 of 100 riders
5'5" 31.0 in 12.2 in or more for 95 of 100 riders
5'6" 31.7 in 12.7 in or more for 95 of 100 riders
5'7" 32.2 in 13.2 in or more for 95 of 100 riders
5'8" 32.6 in 13.6 in or more for 95 of 100 riders
5'10" 33.8 in 14.7 in or more for 95 of 100 riders
5'11" 34.3 in 15.3 in or more for 95 of 100 riders
6'0" 34.9 in 15.6 in or more for 95 of 100 riders
6'1" 35.6 in 16.3 in or more for 95 of 100 riders
6'2" 36.0 in 16.8 in or more for 95 of 100 riders
6'3" 36.6 in 17.7 in or more for 95 of 100 riders

Clearance is inseam minus the measured 17.6-inch step; the 5th percentile inseam at each height from ANSUR II; shoes add to it.

Will I feel cramped, or stretched?

The median rider leans 11 to 12 degrees forward from upright at 5'0" to 5'6" and 5 degrees at 6'2". The grips sit about 16 inches ahead of the bracket and 32 to 34 inches above it on DWMEIGI's size photograph, a riding position close to sitting upright.

Your height Lean from upright, median rider Across saddle and grip positions
5'0" 11° 4–17°
5'2" 11° 5–18°
5'3" 12° 5–18°
5'4" 12° 5–18°
5'5" 11° 5–17°
5'6" 11° 4–17°
5'7" 10° 4–16°
5'8" 9° 3–15°
5'10" 8° 2–14°
5'11" 7° 1–13°
6'0" 7° 0–12°
6'1" 6° 0–12°
6'2" 5° 0–11°
6'3" 5° 0–11°

The smallest forward lean that reaches the grips with straight arms, from the sit point on the saddle, ANSUR II arm and torso lengths; the cockpit as DWMEIGI photographs it. The last column runs from the most upright to the most stretched pairing of sit point and grip position on that photograph, for the median rider; at 0° that rider reaches the grips sitting upright.

How much weight goes through my wrists?

About 9 to 13% of body weight rests on the hands with the back relaxed, under the 15% Carahalios measured on road racers riding the hoods. For a 157 lb median rider at 5'5", that is about 10 lb on each hand.

Your height Share of your weight, back relaxed Median rider's weight On each hand
5'0" 12% (8–15%) 126 lb about 8 lb
5'2" 13% (8–16%) 139 lb about 9 lb
5'3" 13% (9–16%) 144 lb about 9 lb
5'4" 13% (9–16%) 147 lb about 9 lb
5'5" 13% (9–16%) 157 lb about 10 lb
5'6" 12% (8–16%) 166 lb about 10 lb
5'7" 12% (8–15%) 172 lb about 10 lb
5'8" 11% (7–15%) 179 lb about 10 lb
5'10" 10% (6–14%) 192 lb about 10 lb
5'11" 10% (6–14%) 196 lb about 10 lb
6'0" 10% (5–13%) 204 lb about 10 lb
6'1" 9% (5–13%) 206 lb about 10 lb
6'2" 9% (5–13%) 216 lb about 9 lb
6'3" 9% (5–13%) 227 lb about 9 lb

Segment weights from Clauser, McConville and Young (1969); the back relaxed, the arms carrying the rest of the upper body's lean; a ceiling, since a rider who holds the torso up puts less through the grips. The reference is Carahalios (2015).

How do I set the saddle when it arrives?

Set the saddle so your knee bends 25 to 35 degrees at the bottom of the stroke, then fine-tune it by feel. The quick check is your heel on the pedal at its lowest point with the leg straight; with the ball of your foot on the pedal, that leaves the bend the formula aims at.

The seat post is 300 mm long and 28.6 mm across, by DWMEIGI's electronics page, and its clamp is a quick release. Keep the post's minimum-insertion mark inside the frame.

Email us your height and inseam; the reply gives your saddle row on the MG1703, how far you clear its frame and how far you lean.

Email us your inseam

How we computed fit

For fit, the targets are a saddle at 109% of inseam from the pedal axle (Hamley and Thomas 1967, as Peveler and colleagues, 2005 report it) and a knee bent 25 to 35 degrees, worked out for the bodies of the US Army's ANSUR II survey. DWMEIGI prints the crank and the seat range; the bracket height, post angle, grips and step were measured on its size photograph.

Input Value Source
Seat height range 32 to 38 in from the ground DWMEIGI's size chart, "E Seat height 32"-38""
Crank 170 mm DWMEIGI's electronics page, "170mm crank length"
Bracket height 11.9 in measured on DWMEIGI's size photograph
Seat post angle 74.3° measured on the same photograph
Grips 15.8 to 17.4 in ahead of the bracket, 31.8 to 34.3 in above it measured on the same photograph
Step 17.6 in measured on the same photograph
Bodies 6,068 adults the US Army's ANSUR II survey
Saddle formula 109% of inseam from the pedal axle, band to 106% Hamley and Thomas 1967; Ferrer-Roca and colleagues
Segment weights head, trunk and arms Clauser and colleagues (1969)

The measured rows rest on the scale and the three controls below.

A 5'8" rider has a 32.64-inch inseam at the median; 109% of it puts the saddle top 35.58 inches from the pedal axle, which is 40.0 inches above the ground on this frame, above the 38-inch top of DWMEIGI's range. LeMond's 88.3% from the bracket gives 28.8 inches against the model's 28.9.

The photograph is scaled from DWMEIGI's 50-inch wheelbase, with the near rear wheel brought onto the frame's center plane. Three of DWMEIGI's other figures come back within 3.5% at that scale:

Dimension Reference Measured on DWMEIGI's SIZE & FIT photo Gap
Front tire, outer diameter by the ETRTO size of DWMEIGI's 20 x 4.0 24.0 in 23.8 in −0.9%
Reach, DWMEIGI's F line 24.0 in 24.1 in +0.5%
Front basket length, DWMEIGI's G 12.0 in 12.1 in +0.9%

The tire's reference is the outer diameter of a 20 x 4.0 tire by its ETRTO size (406 mm plus twice 101.6 mm), since DWMEIGI prints the size and not the diameter; the reach is DWMEIGI's F line, the basket its G figure.

DWMEIGI's size chart photograph of the MG1703 with its lettered dimension lines and a rear view

DWMEIGI's size photograph, the one measured here: E is the 32 to 38 inch seat range and D the 41 to 44 inch handlebar height.

A 750 W Bafang front hub with a twist throttle

The motor is a 750 W Bafang brushless geared hub in the front wheel, with 80 Nm of torque by DWMEIGI's figure, run from a twist throttle or five levels of pedal assist. DWMEIGI's electronics page names it a "48V750W BAFANG brushless geared hub motor" and lists a "Full twist throttle" and "Intelligent 5 level pedal assist with 12 magnet integrated sensor".

The throttle moves the trike with no pedaling. Level 0 cuts the motor, and the trike starts on level 1 each time the display is switched on, by the KD51C display manual DWMEIGI prints for the MG1703.

Holding the minus button for two seconds starts the walk mode, which moves the trike at "a uniform speed of 6 Km/h" (about 3.7 mph by our conversion) while you walk beside it, by the same display manual. That helps on a ramp or up a driveway.

DWMEIGI's photograph of the MG1703's front hub motor between the fork legs, with the brake disc on the left

The Bafang hub sits in the front wheel, so the front tire pulls the trike while the chain drives the rear.

Because the hub pulls through the front wheel, none of the motor's power goes through the rear axle, so the motor needs no rear differential to share its drive between the two rear wheels in a turn; the pedals reach the rear through the chain.

A 48 V 18.2 Ah pack: 873.6 Wh

The battery holds 873.6 Wh, 48 V at 18.2 Ah by DWMEIGI's figure, in a pack that locks onto a rail on the frame with a key and comes off for charging indoors. DWMEIGI's electronics page describes "lithium 2600mah cells" "rated over 600 charge cycles", and the charger as a "48V3AMP DWMEIGI smart fast charger".

DWMEIGI gives three charging times, and all three are in its own documents: "4-5 Hours" on the product page, "Taking 6 hours to charge the battery full from empty" on the electronics page, and "about 4-6 hours" in the manual. Plan on the longest, six hours, from empty.

The manual adds three habits worth keeping: never charge for "more than 10 hours", charge a stored battery "at least one time per month", and each of the display's five battery bars is "approx. 20%" of the pack.

DWMEIGI's product photograph of the MG1703's 48 V battery pack

The pack DWMEIGI sells for the MG1703, shown on its own; it slides onto the frame's rail and locks with the key.

Range: 60 miles at 12 mph for 300 lb in all, computed

With 300 lb aboard (rider, cargo and trike together), the MG1703's 873.6 Wh pack computes to 60 miles at a steady 12 mph on the throttle alone on level pavement at 77 °F, and 45 miles with a quarter of the pack kept in reserve. DWMEIGI's own figure, "up to 45 miles per charge (pure electric mode)", is the same ride at about 16.5 mph (the mapping below).

  1. Pick your speed and effort in the first table: throttle only, or 75 or 150 watts from your legs.
  2. Adjust for your hills, your weight and the cold with the tables that follow.
  3. Plan on the "25% kept" column, the pack a measured pedelec left in reserve (Schmitt, Decker and Doppelbauer, 2019), because DWMEIGI prints no reserve as a percentage.

The number to plan on: 45 miles at 12 mph on level pavement for 300 lb in all, on the throttle, with a quarter of the pack kept in reserve. A 1,000-foot climb at 6 mph costs 186 to 253 Wh of the 873.6 Wh, so check the hill table if your rides climb.

Does riding faster cut range?

Yes: at 300 lb in all on level pavement, 12 mph on the throttle computes to 60 miles and 20 mph to 35 miles, because air drag grows with the square of speed. Pedaling at 75 watts stretches 15 mph to 74 miles.

Speed Throttle only 75 W from your legs 150 W from your legs Throttle, 25% kept
8 mph 75 mi your legs alone your legs alone 56 mi
10 mph 67 mi 197 mi your legs alone 50 mi
12 mph 60 mi 118 mi your legs alone 45 mi
15 mph 49 mi 74 mi 138 mi 37 mi
18 mph 41 mi 53 mi 74 mi 30 mi
20 mph 35 mi 43 mi 56 mi 27 mi

300 lb total moving weight (rider, cargo and trike), level pavement, 77 °F, no wind, the median of ten measured fat tires, the upright cruiser riding position; "your legs alone" means the legs carry the ride at that speed and the motor draws next to nothing.

What gear saves battery?

On the MG1703's front hub, the gear you choose changes your cadence, not the motor's, so it changes range only through how much your legs add. The Shimano 7-speed works on the rear wheel through the chain; the hub turns at the front wheel's speed whatever the gear, so the table shows your legs' effort at each speed and grade.

Speed and grade Throttle only 75 W from your legs 150 W from your legs
8 mph, level 75 mi your legs alone your legs alone
8 mph, 4% grade 18 mi 27 mi 46 mi
8 mph, 8% grade 9 mi 11 mi 15 mi
12 mph, level 60 mi 118 mi your legs alone
12 mph, 4% grade 18 mi 22 mi 29 mi
12 mph, 8% grade 9 mi 11 mi 13 mi
15 mph, level 49 mi 74 mi 138 mi
15 mph, 4% grade 17 mi 20 mi 24 mi
15 mph, 8% grade beyond the motor beyond the motor beyond the motor
20 mph, level 35 mi 43 mi 56 mi
20 mph, 4% grade beyond the motor beyond the motor beyond the motor
20 mph, 8% grade beyond the motor beyond the motor beyond the motor

300 lb total, 77 °F, the median fat tire; "beyond the motor" means the motor's 80 Nm cannot hold that speed on that grade; DWMEIGI's 7-speed sets the cadence your legs turn at each speed.

Does going uphill drain it faster?

Yes, sharply: on a 6% grade the throttle holds 15.0 mph and the pack lasts 12 miles of that climb at 300 lb in all, and a 10% grade brings it down to 10.7 mph. In the model, lifting the load takes most of a climb's energy, which is why the weight table matters on hills too.

Grade Fastest steady speed, throttle Miles at that speed Fastest, 75 W from your legs Miles at that speed
2% 19.1 mph 22 mi 19.3 mph 26 mi
4% 18.1 mph 16 mi 18.5 mph 17 mi
6% 15.0 mph 12 mi 16.1 mph 13 mi
8% 12.6 mph 9 mi 13.6 mph 10 mi
10% 10.7 mph 7 mi 11.7 mph 8 mi
12% 9.3 mph 5 mi 10.1 mph 6 mi
15% 7.7 mph 4 mi 8.4 mph 4 mi

300 lb total, a steady climb, 77 °F, the median fat tire; the fastest speed the motor's 80 Nm holds with the legs adding 0 or 75 watts.

Every 1,000 feet of climbing at 6 mph on the throttle takes 186 to 253 Wh of the pack, depending on the grade:

Grade Battery per 1,000 ft climbed at 6 mph, throttle With 75 W from your legs
4% 186 Wh 132 Wh
6% 207 Wh 157 Wh
8% 229 Wh 179 Wh
10% 253 Wh 202 Wh

300 lb total, 6 mph, 77 °F, the median fat tire; the lift itself is the same at every grade, and the steeper grades cost more because the motor works further from its best efficiency.

Does rider weight affect range?

Yes: at 12 mph on level pavement, 250 lb in all computes to 66 miles and 450 lb to 47. DWMEIGI's load figure is "330 Lbs Max Load" for rider and cargo, so add the trike's own weight, which DWMEIGI does not print, to find your row.

Rider, cargo and trike 12 mph, level 12 mph, level, 25% kept Fastest level speed, throttle 8 mph, 4% grade
250 lb 66 mi 49 mi 20.0 mph 22 mi
300 lb 60 mi 45 mi 20.0 mph 18 mi
350 lb 55 mi 41 mi 19.9 mph 15 mi
400 lb 51 mi 38 mi 19.8 mph 13 mi
450 lb 47 mi 35 mi 19.7 mph 11 mi

Total moving weight is rider, cargo and the trike together; level rows at 12 mph on the throttle, the climb row at 8 mph on a 4% grade; 77 °F, the median fat tire.

Does cold weather drain it?

Yes: the 60 miles at 77 °F falls to 47 miles at freezing and 43 at 14 °F, and the battery's own cell data puts the cold rows in a wider band. In winter, keep the pack inside to charge it and slide it onto its rail just before the ride.

Air temperature Miles at 12 mph, throttle Cell-data bracket
95 °F 63 mi —
77 °F 60 mi —
68 °F 57 mi —
50 °F 51 mi —
41 °F 48 mi —
32 °F 47 mi 42–49 mi
14 °F 43 mi 21–43 mi

300 lb total, 12 mph, throttle, level, the median fat tire; air density from the US Standard Atmosphere, 1976; cell energy at temperature from McMaster University (Kollmeyer) LG HG2 data, with the bracket where the cells' own spread widens.

Do the tires cut range?

They do: on the drum results for ten 4-inch fat tires, the lowest-rolling one gives 73 miles at 12 mph and the heaviest 54, against 60 on the median. DWMEIGI fits Kenda's K1167 in 20 x 4.0, a tread with no drum figure of its own, so the median of the ten stands in for it.

Tire case Rolling resistance 12 mph, throttle 15 mph, throttle
the lowest of ten fat tires 0.0070 73 mi 58 mi
the median of ten fat tires (used) 0.0105 60 mi 49 mi
the highest of ten fat tires 0.0126 54 mi 45 mi

300 lb total, throttle, level, 77 °F; rolling resistance from Bicycle Rolling Resistance's fat-bike drum results, ten 26 x 4.00 tires at 12 psi, the heaviest a Kenda Juggernaut Pro.

Run the Kendas inside the pressure range printed on their sidewalls.

Is the maker's range real?

DWMEIGI's 45 miles "per charge (pure electric mode)" is what the model gives for a steady 16.5 mph on the throttle with 300 lb in all on level pavement, and its 60 miles on assist matches 12 mph on the throttle or 15 mph with about 40 watts from your legs. DWMEIGI names a mode for each figure, never a speed or a weight, so the model supplies those.

At 350 lb in all, 15 mph on the throttle still computes to 46 miles, close to DWMEIGI's 45; at 450 lb it is 40.

Tell sales@redtailebikes.com what you weigh, how fast you ride and the longest climb on your route, and we will model that exact ride before you order. Or check out the white trike here; black carries the same 873.6 Wh pack.

Buy the 873.6 Wh MG1703

How the range figures are computed

We take the road power formula of Martin and colleagues (1998), divide it by the motor's and the battery's efficiency to get the energy a steady mile draws, and divide that into the 873.6 Wh pack. Wheel power is speed times the rolling, gravity and air forces together: P = v·[m·g·(Crr·cos θ + sin θ) + ½·ρ·CdA·v²].

Input Value Source
Battery 48 V × 18.2 Ah = 873.6 Wh DWMEIGI's electronics page
Motor 750 W, 80 Nm cap, fitted to reach 20 mph DWMEIGI's page; its shape from the Bafang OEM workbook, 2021
Motor efficiency 80% at the rated point, a floor the Bafang OEM workbook, 2021: "Efficiency (%) ≥ 80"
Rolling resistance 0.0105, bracketed 0.0070 to 0.0126 Bicycle Rolling Resistance's fat-bike results
Drag area 0.640 m², upright cruiser riders Tengattini and Bigazzi, 2018
Battery efficiency about 97% at these currents Arango, Lopez and Ceren, 2021
Wheel 23.98 in, a 20 x 4.0 tire's outer diameter Sheldon Brown, tire sizing
Reserve 25% kept Schmitt, Decker and Doppelbauer, 2019

Every input is DWMEIGI's figure or a published measurement; the motor's shape is a comparable Bafang hub, since DWMEIGI prints no motor curve for the MG1703.

One ride, worked: at 12 mph with 300 lb in all on level pavement, rolling takes 75.5 W and air 58.5 W, so the wheel needs 133.9 W. The motor and battery turn that into 175.2 W drawn from the cells, which is 14.6 Wh for each mile; 873.6 Wh then lasts 59.8 miles, and 44.9 with a quarter kept.

The model reproduces the benchmark ride in Martin and colleagues' worked example, 45.7 W of rolling and climbing power against the 23.6 W and 22.1 W its Appendix I gives for the two. No measured ride of an MG1703 to empty was found to check it against, so that gap is in the limitations. The riding position moves the result least of all:

Riding position Drag area 12 mph, throttle 15 mph, throttle
upright cruiser riders (used) 0.640 m² 60 mi 49 mi
everyday mountain-bike riders 0.603 m² 61 mi 51 mi

300 lb total, throttle, level, 77 °F, the median fat tire; drag areas from Tengattini and Bigazzi's cruiser and mountain-bike riders.

Seven gears, a 48-tooth ring and a 170 mm crank

The pedals drive the rear wheel through a Shimano 7-speed and a KMC chain, so you can ride the MG1703 with the motor off, in a gear that suits the road. DWMEIGI's electronics page lists a "48T chain wheel, 170mm crank length", a "KMC Z7" chain and a "SHIMANO 7 speed" derailleur.

Its product page adds that the shifter "works in both electric and pedal assist modes". On a climb, a low gear lets your legs add watts at a slow cadence, which the gear table above turns into miles.

DWMEIGI's photograph of the MG1703's Shimano thumb shifter on the right grip

The 7-speed thumb shifter sits at the right grip, beside the brake lever.

Mechanical discs, a parking clamp and a 50 mm fork

The MG1703 stops on Tektro mechanical disc calipers, its brake levers cut the motor, and a parking clamp holds the trike still on a slope. DWMEIGI's electronics page lists "TEKTRO mechanical brake caliper, aluminum alloy brake levers with motor cutoff switch, parking brake clamp", and notes that the display shows code 25 while you brake, "that's not a real error code, it means motor cutoff".

The fork is DWMEIGI's own aluminum suspension fork with "50 mm travel with lockout and preload adjustment", by the same page. Lock it on smooth pavement and open it on gravel or a rough path.

Use the parking clamp every time you step off: a trike does not fall over when parked, so it can roll on a slope.

Kenda 20 x 4.0 tires on all three wheels

All three wheels carry Kenda K1167 tires in 20 x 4.0, which put a wide footprint under a trike that is meant to leave the pavement. DWMEIGI's product page calls them "4 inch width fat tires" with "puncture resistance, strong wear resistance".

On pavement the tire table above puts a figure on what they cost in range. DWMEIGI's page names "wet stones, muddy trails, beaches or snowy mountains" as the riding the design is for.

DWMEIGI's photograph of the MG1703's 20 x 4.0 Kenda fat tire and spoked wheel

A 20-inch rim with a 4-inch tire, on all three wheels.

Baskets: 58 liters front and back

DWMEIGI rates the front basket for 5 kg and the rear basket for 25 kg, and the rear one comes with a waterproof bag. Its electronics page gives the sizes as 12 x 11 x 5 inches at the front and 19 x 15 x 10 inches at the back, which our arithmetic puts at 57.5 L together, and its product page states "58L big storage space".

That is about 11 lb up front and 55 lb behind, by our conversion of DWMEIGI's ratings. Heavy items ride lowest and farthest back, in the rear basket, where they sit between the rear wheels.

DWMEIGI's photograph of the MG1703's rear basket with its waterproof bag

The rear basket and bag sit between the two rear wheels.

Assembly: two boxes and a tool kit

The MG1703 ships in two boxes with a tool kit and the user manual, by DWMEIGI's product page. Its manual walks the remaining steps, from the seat post to the battery's lock.

DWMEIGI's warranty policy "recommends professional assembly of our e-bikes" and does not cover damage "caused by improper assembly" (its warranty policy). If you are not at home with a torque wrench, have a local bike shop do the final setup, and find one in our e-bike shop directory.

The Mercer fit test

The MG1703 suits Ruth best of our seven: at her 5'5", 38 of 100 riders reach the formula saddle and 71 of 100 reach 106%, and DWMEIGI's 18-year minimum rules out Cole and Ivy. The Mercers are our editorial family, the fixed measuring stick we hold every machine against; each row reads a published number, the fit tables above or DWMEIGI's manual, and the heights are the ones we give each member.

Member Verdict The number behind it
Frank Kowalski, 63, 5'10" Inside DWMEIGI's window, with the saddle about 3 inches under his formula height 0 of 100 at 109% at 5'10" (median 3.2 in low); DWMEIGI's window 5'2"–6'3"
Ruth Kowalski, 61, 5'5" The closest fit in the family 38 of 100 at 109%, 71 of 100 at 106%; 12.2 in or more over the frame for 95 of 100
Jack Mercer, 48, 6'1" Inside the window, riding well below the formula saddle 0 of 100 at 109% at 6'1"; DWMEIGI's window runs to 6'3"
Dana Mercer, 45, 5'7" A low saddle for most at her height 5 of 100 at 109%, 25 of 100 at 106%
Maya Torres, 32, 5'6" Half of riders her height reach 106% 17 of 100 at 109%, 49 of 100 at 106%
Cole Mercer, 16, 5'11" Not until 18 DWMEIGI's manual: "Don't let children under the age of 18 ride the bike."
Ivy Mercer, 12 Off the table at her age the same line in DWMEIGI's manual

Ages from the Mercers' page; heights as each member is cast; saddle counts from the fit tables, DWMEIGI's 32 to 38 inch seat range and its 170 mm crank.

The sharpest contrast is between Ruth and Jack. The same 38-inch saddle top that reaches the formula for 38 of 100 riders at Ruth's 5'5" reaches it for none at Jack's 6'1", although DWMEIGI's window covers both; Jack would ride the MG1703 with more knee bend than the formula sets.

Is the DWMEIGI MG1703 UL certified?

A landlord, a building or a city may want certification papers; write to us before ordering and we will take that request to DWMEIGI in writing. The one UL mention on DWMEIGI's product page is the charger: "3A AC 100V-240V UL Charger,US".

UL 2849 is what UL Solutions calls "the Standard for Electrical Systems for eBikes", reached "by examining the electrical drive train, battery, and charger system combinations in e-bikes". For a trike, the document worth asking for names the MG1703 by model.

DWMEIGI's product photograph of the 48 V charger it sells for the MG1703

The charger DWMEIGI sells for the MG1703; its product page calls the trike's charger a "3A AC 100V-240V UL Charger,US".

Has the DWMEIGI MG1703 been recalled?

No. No recall or warning naming DWMEIGI, MEIGI or the MG1703 was in the US Consumer Product Safety Commission's records when we searched them on November 11, 2026. That read covered all 10,082 recall records, 389 product safety warnings and the recall feed for those three names.

Check Result, November 11, 2026
CPSC recalls, all 10,082 records No entry naming DWMEIGI, MEIGI or the MG1703
CPSC product safety warnings, all 389 rows No entry naming the same
CPSC recall feed, October 8 to November 5, 2026 No entry naming the same

The same searches do find the Ancheer and Specialized recalls on record and the Ridstar warnings, so an empty result here is a real one.

Is the MG1703 street legal? 750 W, 20 mph, three wheels

At DWMEIGI's own 20 mph, the MG1703 sits inside the e-bike definition in 24 states and DC and outside it in 22, while two states' texts leave it unsettled and two define no e-bike at all. Look up your state's row below, then read its full page through our state-by-state guide.

Verdict at 20 mph Jurisdictions
Inside the definition 24 states and DC: CA, CO, DC, DE, GA, HI, IA, IN, MA, MD, MI, MN, NC, ND, NE, NM, NV, OK, OR, SC, SD, UT, VA, WA, WI
Outside the definition 22 states: AL, AR, AZ, FL, ID, IL, KS, LA, ME, MO, MS, MT, NH, NJ, NY, OH, RI, TN, TX, VT, WV, WY
Not settled CT, PA
No statutory definition AK, KY

Screened November 11, 2026, against each jurisdiction's definition with DWMEIGI's 750 W, a twist throttle, 20 mph and three wheels; a run just under 20 mph gives the same sets. This is a summary and not legal advice, and each state's page links the statute.

Nineteen of the 22 turn on one word: their laws limit the motor to "less than" or "fewer than" 750 watts, and a 750 W rating misses that at any speed. That is the rule in Texas, Florida, New York and Ohio, among others (Tex. Transp. Code § 664.001, Fla. Stat. § 316.003, N.Y. VTL § 102-c, Ohio R.C. 4511.01).

Three others turn on different words. New Jersey treats a bike whose throttle moves it without pedaling as a motorized bicycle under P.L.2025, c.285; Montana's definition reads "two tandem wheels" (MCA § 61-8-102(7)) and Rhode Island's "a two-wheel (2) vehicle" (R.I. Gen. Laws § 31-1-3).

Two stay open. Connecticut's definition does not settle whether a three-wheeler counts (C.G.S. § 14-1), and Pennsylvania's pedalcycle is a "vehicle weighing not more than 100 pounds" (75 Pa.C.S. § 102), which DWMEIGI publishes no weight to check. Alaska (AS 28.90.990) and Kentucky (KRS 189.010) define no e-bike.

Where a state's definition leaves it out, the MG1703 is not an electric bicycle under that state's code. Florida exempts only an electric bicycle from "financial responsibility, driver or motor vehicle licenses, vehicle registration" (§ 316.20655(2)), so on our reading those rules return for one that falls outside. Before the first road ride, open your own state's page.

Federal law calls a low-speed electric bicycle "a two- or three-wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts (1 h.p.)", with a top speed on the motor alone under 20 mph (15 U.S.C. § 2085(b)).

Federal land has its own rule: the agency that manages it decides which routes this trike may use, and riding off them carries a criminal penalty. In a national forest, a motor vehicle is "Any vehicle which is self-propelled", leaving out rail vehicles and mobility devices (36 CFR § 212.1).

Federal land Where it may go The penalty
National Forest System The routes on the forest's motor vehicle use map: "it is prohibited to possess or operate a motor vehicle ... other than in accordance with those designations" (36 CFR § 261.13) "imprisonment of not more than six months or a fine in accordance with the applicable provisions of 18 U.S.C. 3571 or both" (36 CFR § 261.1b)
Bureau of Land Management Areas and trails "designated as open to off-road vehicle use" (43 CFR § 8341.1), unless it counts as a bicycle there "a fine of not more than $1,000 or imprisonment for not longer than 12 months, or both" (43 CFR § 8340.0-7)

Read through the eCFR, current text. Before a trail ride on federal ground, find the route on that forest's motor vehicle use map or in the BLM field office's designations.

On BLM land an e-bike counts as a bicycle only on routes "upon which mechanized, non-motorized use is allowed", and only where the authorized officer "has expressly determined" it (43 CFR § 8340.0-5(a)(5)).

DWMEIGI's manual puts the minimum rider age at 18, even where a state allows younger riders.

Before your first ride: look up your state in the table above, leave the top speed at DWMEIGI's 20 mph, and confirm that a federal trail is designated for the trike before you take it there.

Green flags / Red flags

The MG1703's strengths are its 873.6 Wh pack, a twist throttle and 4-inch tires on all three wheels; each red flag below is about fit, and it names the page or the DWMEIGI trike to read instead.

Green flags

  • 873.6 Wh by DWMEIGI's figure: 60 miles at 12 mph on the throttle for 300 lb in all, computed.
  • DWMEIGI's own top speed of 20 mph, inside the definition in 24 states and DC.
  • A twist throttle, five assist levels and a walk mode, by DWMEIGI's electronics page.
  • 4-inch Kenda tires on all three wheels, on 20-inch rims.
  • A parking clamp, motor cutoff levers and a 50 mm fork with lockout.
  • Two baskets, 58 L, with a waterproof bag on the rear one.

Red flags (who should read another of ours)

Buy it if / Buy something else if

Buy it if you want a three-wheel machine with an 873.6 Wh battery, a throttle and fat tires for errands, beach paths, packed snow or gravel, you stand about 5'0" to 5'4", or you accept a lower saddle above that, and your state's definition lets a 750 W trike count as an e-bike.

At $1,499, riding it 1,000 miles a year at 12 mph costs about $2.65 a year in electricity at the US average price (the running costs).

Buy something else if it has to fold, you need reverse, you ride rough singletrack, or you are under 18. For the first three, read our Silverado HD, Silverado Urban or Blazer review; for the other electric trikes we have reviewed, start at our reviews hub.

The white MG1703 ships free within the contiguous United States, and its black twin has the same frame and battery.

Order the fat-tire MG1703

Before you buy: the checklist

Six checks settle whether the MG1703 fits your ride: your inseam, your state, your total weight, your storage, your longest hill and how it gets assembled.

  1. Your inseam against the saddle table: the saddle tops out at 38 inches from the ground.
  2. Your state's definition in the screen, and your city's rules on its page.
  3. Your total weight: rider and cargo within DWMEIGI's 330 lb, plus the trike for the range rows.
  4. Your storage: DWMEIGI's size chart lists the rear as "Rearwheel length 31"", so measure your gate and door against the whole trike.
  5. Your longest hill: read its speed in the hill table.
  6. Your assembly plan: two boxes, a tool kit, and DWMEIGI's advice to have it assembled professionally.

Buying it from us

We sell the MG1703 at $1,499, and the terms below are those of our policies, contact page and listing as we read them on November 11, 2026.

What you get Our terms on November 11, 2026
Who sells it Redtail Ebikes, the business name of the Florida corporation named in our terms of service; DWMEIGI makes the trike
Questions before you buy sales@redtailebikes.com, which our contact page lists; "We typically respond to email within one business day"
Price $1,499 on our listing, in white or black
Shipping "free shipping on every electric bike within the contiguous United States", by our shipping policy; Alaska, Hawaii, U.S. territories, P.O. boxes and remote areas "may incur additional charges or be excluded"
Dispatch and transit "prepared and dispatched within 1–3 business days of confirmation"; "most e-bikes arrive within 5–10 business days after dispatch", by our shipping policy
Damage in transit Photos within 48 hours of delivery, and "we file the carrier claim and arrange a replacement or repair", by our refund policy
Defective on arrival "covered under manufacturer warranty — we coordinate repair or replacement remotely", by our refund policy
Warranty DWMEIGI's terms: the frame 2 years, other parts 1 year (limited), consumables including the battery and tires 1 year, by its warranty policy; our terms say "We will help facilitate warranty claims with the manufacturer"
Payment A credit card, Apple Pay or Google Pay at checkout
Fit before you pay Email your height and inseam, and we reply with your row in the fit tables

Each quote is read from the page its row links, on November 11, 2026.

Every DWMEIGI trike we sell is in our DWMEIGI collection, and our electric trikes collection adds the other makers' three-wheelers we sell.

Running costs: 1,000 miles of the 12 mph flat throttle ride at 300 lb in all takes about 14.6 kWh, which is about $2.65 a year in electricity for 1,000 miles a year at the US average residential price of 18.16 cents per kWh (EIA, Electric Power Monthly, Table 5.6.A), before the charger's own losses.

Changed your mind? Ask within 72 hours of delivery, with the trike unopened in its factory packaging, and our refund policy takes it back less a 15% restocking fee and the return shipping. Cancel before it ships and the charge is a 3% transaction fee, because card-processing fees cannot be recovered.

Write to us with your load and your steepest street, and the reply carries your hill speed and your range at your weight.

Ask us before you order

Frequently asked questions

What is a fat tire electric tricycle?

A three-wheeled e-bike on tires about 4 inches wide, also called a fat tire e-trike or a 3-wheel fat tire electric bike. The MG1703 has 20 x 4.0 Kenda tires on all three wheels, a 750 W front hub and a twist throttle, and it stands on its own at a stop.

Is the MG1703 a good electric trike for seniors?

Three wheels hold it upright at a stop, the step-through frame is low, the twist throttle starts it without pedaling and a parking clamp holds it still; riders of about 5'0" to 5'4" reach the formula saddle height most often. Taller seniors ride with a lower saddle; the fit tables give each height's row.

Does the MG1703 have a throttle?

Yes: the MG1703 is an electric trike with throttle and pedal assist both. Its full twist throttle moves it without pedaling, and it has five levels of pedal assist and a walk mode, by DWMEIGI's electronics page.

How far does the MG1703 go on one charge?

With 300 lb aboard, trike included, the throttle alone computes to 60 miles at 12 mph and 35 at 20 mph on level pavement at 77 °F, or 45 and 27 with a quarter of the pack kept. DWMEIGI's own figure is 45 miles on pure electric.

How fast does the MG1703 go?

DWMEIGI's figure is 20 mph. At that speed the MG1703 sits inside the e-bike definition in 24 states and DC (the screen).

In 24 states and DC its 750 W, 20 mph and three wheels fit the e-bike definition. In 22 states it falls outside, 19 of them because their laws say "less than" or "fewer than" 750 watts (Florida's § 316.003 among them). In two more the text leaves it unsettled: Connecticut's on three wheels, and Pennsylvania's on a weight DWMEIGI does not publish.

How much weight can the MG1703 carry?

DWMEIGI's card says "330 Lbs Max Load" and its FAQ asks riders to stay "less than 330lbs", though another FAQ line says "We recommend a max weight of 400lbs". Plan on 330 lb for rider and cargo; the baskets take 5 kg in front and 25 kg behind.

Is the MG1703 an all-terrain electric trike?

In DWMEIGI's own words, yes: it writes that the MG1703 is "fit for wet stones, muddy trails, beaches or snowy mountains", and its 4-inch tires and 50 mm fork are built for that. On federal trails, the trike may go only where the route is designated for it (the law).

Can the MG1703 climb hills?

Yes. With 300 lb aboard, the throttle holds 15.0 mph on a 6% grade and 10.7 mph on a 10% grade, by our computation, and the 7-speed lets your legs help.

What battery does the MG1703 use?

The MG1703 battery is a 48 V 18.2 Ah lithium pack of 873.6 Wh, by DWMEIGI's electronics page, rated "over 600 charge cycles". It locks onto the frame with a key and comes off to charge, in about 4 to 6 hours by DWMEIGI's manual. We sell a spare: the MG1703 replacement battery.

How do you assemble the DWMEIGI MG1703?

The MG1703 comes in two boxes with a tool kit, and DWMEIGI's MG1703 assembly instructions are in its user manual, step by step. Book a bike shop to check your build before the first ride: DWMEIGI's warranty policy wants professional assembly and excludes damage from a bad one (the assembly section).

Is there a folding fat-tire trike from DWMEIGI?

Yes: DWMEIGI's own menu files the MG2301 Silverado HD as its "Folding E-trike". Our Silverado HD review covers it.

What size rider fits the MG1703?

DWMEIGI recommends 5'2" to 6'3". By our fit model, a 5'4" rider with a 30.5-inch median inseam needs the saddle about 37.7 inches from the ground at 109% of inseam, inside the 32 to 38 inch range; at 5'8" the formula asks for 40.0 inches.

How much does the MG1703 cost?

$1,499 on our listing on November 11, 2026, in white or black, with free shipping within the contiguous United States by our shipping policy.

Limitations of this review

This review is computed from DWMEIGI's published documents, the studies it cites and our own store records; the twelve points below say where those stop.

  1. We sell the MG1703. This is a seller's review, which is why the red flags route to other machines and the figures are shown with their sources.
  2. No measured ride of an MG1703 to empty was found in five searches and four YouTube result pages on November 11, 2026, so the range model is checked against Martin and colleagues' benchmark ride, not against this trike.
  3. The range model's rows are steady rides: no stops, no wind, the cells at air temperature, and level pavement or a constant grade.
  4. The model's tire is a stand-in: Kenda's K1167 has no drum figure, so the median of ten measured fat tires is used, with the lowest and highest as a bracket.
  5. The model's motor shape is a comparable Bafang hub, since DWMEIGI prints no motor curve; its 750 W, 80 Nm and 20 mph are DWMEIGI's.
  6. The model keeps a measured pedelec's 25% in reserve, since DWMEIGI prints no reserve as a percentage.
  7. No weight for the trike itself is printed in DWMEIGI's page, card, FAQ, electronics page or manual, so the range rows are totals and Pennsylvania's 100-pound line cannot be checked.
  8. The cockpit is the one DWMEIGI photographed: the bracket, post angle, step and grip positions are measured on its size photograph, the far rear wheel is hidden there, so one axis of the photograph's center is assumed and bracketed (the scale moves by at most 1.3%), and the sit bones' place on the saddle is bracketed too.
  9. ANSUR II measured soldiers, not the public: the bodies behind the fit tables include no children and few people over 60.
  10. The hand figure is a ceiling, worked out with a relaxed back; a rider who holds the torso up puts less weight through the grips.
  11. The formula saddle height is a starting point: the knee range of 25 to 35 degrees and the heel check finish the setting.
  12. DWMEIGI's own figures disagree in three places (the controller's amps, the charging time and the load), and both readings are printed.

The bottom line

For $1,499 the MG1703 brings an 873.6 Wh battery, a twist throttle and 4-inch tires on three wheels; at DWMEIGI's own 20 mph it meets the e-bike definition in 24 states and DC, and the model gives it 60 miles at 12 mph with 300 lb aboard. It fits riders of about 5'0" to 5'4" at the formula saddle height, and taller riders inside DWMEIGI's window ride it lower.

If your state is among the 24 and DC and your saddle row fits, it pairs 873.6 Wh and 4-inch tires with a $1,499 price on our listing. Tell us your inseam first if you stand over 5'6".

The button orders white; this link orders black. Delivery in the contiguous United States is free, and a damaged arrival is our carrier claim to file, not yours.

Get the white MG1703

Image credit: the cover's trike is DWMEIGI's own studio photograph of the white MG1703, scaled evenly and otherwise untouched. Behind it is a charcoal studio that Nano Banana Pro rendered on Playcut for an earlier Redtail cover, reused here unchanged, with our contact shadows and type added. Every image below the cover is DWMEIGI's own file.

Source register

Each document behind this review, with the tier of its publisher (T1 government records, T2 the maker's own documents, our own policies and the studies, T3 reference works, T4 the image service behind the cover's studio), what it supports here and the day we read it.

Source Tier What it supports Date read
2012 Anthropometric Survey of U.S. Army Personnel (ANSUR II), public data release 2017 T1 US Army ANSUR II survey, 6,068 adults: the inseams behind the saddle and clearance tables, the FAQ's fit figures and the Mercer rows September 26, 2026
Peveler W, Bishop P, Smith J, Richardson M, Whitehorn E. Comparing Methods For Setting Saddle Height In Trained Cyclists. JEPonline 8(1):51-55 T2 Peveler et al. (2005): the 109% of inseam (Hamley) formula and LeMond's 88.3% from the crank axle, the page's saddle method September 26, 2026
Carahalios A. An Analysis of the Bicycle-Rider Interface Forces in Stationary Road Cycling (MS thesis, Department of Integrative Physiology, University of Colorado) T2 Carahalios (2015): about 15% of body weight on the hands for road racers on the brake hoods, the reference beside the hands table September 25, 2026
Clauser, McConville & Young, Weight, volume, and center of mass of segments of the human body, AMRL-TR-69-70 T2 Clauser, McConville and Young (1969): the body-segment weights behind the hand-load figures September 25, 2026
Martin JC, Milliken DL, Cobb JE, McFadden KL, Coggan AR. Validation of a Mathematical Model for Road Cycling Power T2 Martin et al. (1998): the road power equation behind every range figure, and its Appendix I worked example (rolling resistance 23.6 W, potential energy 22.1 W), the two terms the model reproduces at 45.7 W together November 10, 2026
Tengattini S, Bigazzi AY. Physical characteristics and resistance parameters of typical urban cyclists T2 Tengattini and Bigazzi (2018): the drag area of upright cruiser riders (0.640 m2) and of mountain-bike riders (0.603 m2) November 10, 2026
Arango I, Lopez C, Ceren A. Improving the Autonomy of a Mid-Drive Motor Electric Bicycle Based on System Efficiency Maps and Its Performance T2 Arango, Lopez and Ceren (2021): the battery-efficiency equation, about 97% at the MG1703's 12 mph draw October 4, 2026
Schmitt M, Decker S, Doppelbauer M. Measuring and Characterization of a Pedal Electric Cycle (Pedelec) on a Full System Test-Bench T2 Schmitt, Decker and Doppelbauer (2019): a measured pedelec used 75% of its nominal pack, the 25% planning reserve October 4, 2026
LG 18650HG2 Li-ion Battery Data T2 LG HG2 18650 cell data (Kollmeyer, McMaster University): energy by temperature behind the cold table November 9, 2026
U.S. Standard Atmosphere, 1976 T1 U.S. Standard Atmosphere, 1976: air density by temperature for the cold table November 9, 2026
OEM Workbook 2021 T2 Bafang's OEM workbook (2021): the comparable hub motor's shape and its 'Efficiency (%) >= 80' floor, rebased to DWMEIGI's 750 W and 48 V October 3, 2026
Tire Sizing Systems T3 Sheldon Brown's tire sizing table: the 406 mm bead seat of a 20-inch tire, behind the 23.98 in wheel and the tire control September 28, 2026
Fat Bike Tires Test Results T2 Bicycle Rolling Resistance's fat-bike drum results, ten 26 x 4.00 tires at 12 psi: the median (0.0105) and lowest (0.0070) rolling resistance in the tire table September 25, 2026
Kenda Juggernaut Pro 2016 T2 Bicycle Rolling Resistance's Kenda Juggernaut Pro review: the heaviest-rolling casing on its drum, the tire table's high bracket September 25, 2026
Electric Power Monthly, Table 5.6.A. Average Price of Electricity to Ultimate Customers by End-Use Sector T1 US EIA Electric Power Monthly Table 5.6.A: the US residential average of 18.16 cents per kilowatt-hour behind about $2.65 per 1,000 miles November 10, 2026
United States Code, Title 15 (2024 edition) T1 15 U.S.C. § 2085(b): a low-speed electric bicycle is 'a two- or three-wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts (1 h.p.)' November 9, 2026
Texas Transportation Code, Chapter 664 T1 Tex. Transp. Code § 664.001: Texas's electric bicycle, whose motor is rated 'fewer than' 750 watts November 9, 2026
Fla. Stat. § 316.003(23) T1 Fla. Stat. § 316.003: Florida's electric bicycle, whose motor is rated 'less than' 750 watts November 10, 2026
Florida Statutes § 316.20655 T1 Fla. Stat. § 316.20655(2): Florida exempts an electric bicycle from 'financial responsibility, driver or motor vehicle licenses, vehicle registration' November 6, 2026
N.Y. VTL § 102-c T1 N.Y. VTL § 102-c: New York's bicycle with electric assist, whose motor is 'less than' 750 watts November 10, 2026
R.C. 4511.01(SSS)-(VVV) T1 Ohio R.C. 4511.01: Ohio's electric bicycle classes, each with 'an electric motor of less than seven hundred fifty watts' November 10, 2026
Montana Code Annotated § 61-8-102 T1 MCA § 61-8-102(7): Montana's 'two tandem wheels' November 9, 2026
R.I. Gen. Laws § 31-1-3 T1 R.I. Gen. Laws § 31-1-3: Rhode Island's 'a two-wheel (2) vehicle' November 9, 2026
P.L.2025, c.285 T1 New Jersey P.L.2025, c.285: a bicycle whose throttle moves it without pedaling is a motorized bicycle November 10, 2026
Connecticut General Statutes, chapter 246, § 14-1 T1 C.G.S. § 14-1: Connecticut's definitions, whose electric bicycle leaves a three-wheeler open November 9, 2026
75 Pa.C.S. § 102 T1 75 Pa.C.S. § 102: Pennsylvania's pedalcycle with electric assist, a 'vehicle weighing not more than 100 pounds' November 9, 2026
Alaska Statutes § 28.90.990 T1 AS 28.90.990: Alaska's motor vehicle definitions, with no e-bike definition October 25, 2026
Kentucky Revised Statutes § 189.010 T1 KRS 189.010: Kentucky's traffic definitions, with no e-bike definition October 25, 2026
36 CFR § 212.1 — Definitions T1 36 CFR § 212.1: on National Forest System land a motor vehicle is 'Any vehicle which is self-propelled', rail vehicles and mobility devices aside November 10, 2026
36 CFR § 261.13 — Motor vehicle use T1 36 CFR § 261.13: 'it is prohibited to possess or operate a motor vehicle ... other than in accordance with those designations' November 10, 2026
36 CFR § 261.1b — Penalty T1 36 CFR § 261.1b: 'imprisonment of not more than six months or a fine in accordance with the applicable provisions of 18 U.S.C. 3571 or both' November 10, 2026
43 CFR § 8341.1 — Regulations governing use T1 43 CFR § 8341.1: off-road vehicles on BLM land in areas and trails 'designated as open to off-road vehicle use' November 10, 2026
43 CFR § 8340.0-7 — Penalties T1 43 CFR § 8340.0-7: 'a fine of not more than $1,000 or imprisonment for not longer than 12 months, or both' November 10, 2026
43 CFR 8340.0-5 Definitions T1 43 CFR § 8340.0-5(a)(5): an e-bike counts as a bicycle only on routes 'upon which mechanized, non-motorized use is allowed' where the authorized officer 'has expressly determined' so November 9, 2026
Recall database (saferproducts.gov REST API), query by field T1 CPSC recall service: all 10,082 recall records read November 11, 2026, none naming DWMEIGI, MEIGI or the MG1703 (Ancheer and Specialized controls found) November 11, 2026
Product safety warning listing (CSV) — U.S. Consumer Product Safety Commission T1 CPSC product safety warnings file: all 389 rows read November 11, 2026, none naming DWMEIGI, MEIGI or the MG1703 (Ridstar control found) November 11, 2026
Recalls RSS feed — U.S. Consumer Product Safety Commission T1 CPSC recall feed, October 8 to November 5, 2026: no item naming DWMEIGI or the MG1703 November 11, 2026
E-Bikes Certification: Evaluating and Testing to UL 2849 T3 UL Solutions: UL 2849, 'the Standard for Electrical Systems for eBikes', examining 'the electrical drive train, battery, and charger system combinations' November 10, 2026
Warranty Policy T2 DWMEIGI's warranty policy: the frame 2 years, all other parts 1 year limited, consumables including batteries and tires 1 year; it 'recommends professional assembly' and excludes damage 'caused by improper assembly' November 11, 2026
MG1703 product page T2 DWMEIGI's MG1703 product page (as deposited October 14, 2026): '750W', '48V 18.2Ah', '20 MPH', '60 Miles', '330 Lbs Max Load', '4-5 Hours', the twist throttle, walking mode, '48V 22A Controller', the 'step through carbon steel frame', '58L big storage space', the SIZE & FIT chart, the UL charger line, the FAQ's rider window and 'max weight of 400lbs', and DWMEIGI's own model name October 14, 2026
User Manual for MG1703 T2 DWMEIGI's MG1703 user manual: 'Maximum load capacity = 330lbs.'; 'Don't let children under the age of 18 ride the bike.'; charging 'about 4-6 hours', never 'more than 10 hours', a stored pack charged 'at least one time per month'; each battery bar 'approx. 20%' November 11, 2026
Terms of service T2 Our terms of service: the Florida corporation that sells the trike, and 'We will help facilitate warranty claims with the manufacturer' November 10, 2026
Contact T2 Our contact page: sales@redtailebikes.com and 'We typically respond to email within one business day' November 10, 2026
Shipping policy T2 Our shipping policy: 'free shipping on every electric bike within the contiguous United States'; dispatch in 1-3 business days, transit 5-10; Alaska, Hawaii, territories, P.O. boxes and remote areas may cost extra or be excluded November 11, 2026
Refund policy T2 Our refund policy: damage photos within 48 hours and we file the carrier claim; defects covered under the manufacturer's warranty, which we coordinate; change-of-mind returns within 72 hours, unopened, with a 15% restocking fee plus return shipping; a 3% fee to cancel before dispatch November 11, 2026
Electronics-MG1703 T2 DWMEIGI's Electronics-MG1703 page: '48V18.2AH(873.6Wh)', 'lithium 2600mah cells', 'rated over 600 charge cycles', '48V750W BAFANG brushless geared hub motor, max torque 80NM', '48V750W with 25A current', 'Taking 6 hours to charge', the 5-level 12-magnet assist, 'Full twist throttle', TEKTRO mechanical calipers with motor cutoff and a parking brake clamp, '48T chain wheel, 170mm crank length', 'SHIMANO 7 speed', the 50 mm fork with lockout, the KENDA K1167 20 x 4 tire, the baskets' 5 kg and 25 kg, the 300 mm x 28.6 mm seat post November 11, 2026
User Manual (Display manual for MG1703) T2 DWMEIGI's user-manual page, 'DISPLAY MANUAL FOR MG1703' (KD51C): assist levels 0 to 5, level 1 at start-up, and the walk mode at 'a uniform speed of 6 Km/h' November 11, 2026
Playcut T4 Playcut (playcut.ai): the image service on which Nano Banana Pro generated the charcoal studio behind the cover, made for an earlier Redtail cover and reused unchanged November 11, 2026

Expiry conditions

This review expires and is re-read when DWMEIGI changes the MG1703's motor, battery, top speed or size chart; when any state in the screen changes its definition; when the CPSC records a recall or warning naming DWMEIGI or the MG1703; or on May 11, 2027, whichever comes first.

References

The same documents, numbered for citation: the publisher, the title, the passage this review relies on, the day it was read and the full web address.

  1. U.S. Army Natick Soldier Research, Development and Engineering Center, 2012 Anthropometric Survey of U.S. Army Personnel (ANSUR II), public data release 2017. US Army ANSUR II survey, 6,068 adults: the inseams behind the saddle and clearance tables, the FAQ's fit figures and the Mercer rows. Retrieved September 26, 2026. https://www.army.mil/article/188601/for_good_measure_natick_releases_raw_data_from_army_wide_anthropometric_survey
  2. Journal of Exercise Physiology Online (American Society of Exercise Physiologists), Peveler W, Bishop P, Smith J, Richardson M, Whitehorn E. Comparing Methods For Setting Saddle Height In Trained Cyclists. JEPonline 8(1):51-55. Peveler et al. (2005): the 109% of inseam (Hamley) formula and LeMond's 88.3% from the crank axle, the page's saddle method. Retrieved September 26, 2026. https://www.asep.org/asep/asep/JEPonlineFEBRUARY2005_PevelerSaddle.doc
  3. University of Colorado Boulder (MS thesis), Carahalios A. An Analysis of the Bicycle-Rider Interface Forces in Stationary Road Cycling (MS thesis, Department of Integrative Physiology, University of Colorado). Carahalios (2015): about 15% of body weight on the hands for road racers on the brake hoods, the reference beside the hands table. Retrieved September 25, 2026. https://scholar.colorado.edu/downloads/70795789x
  4. Aerospace Medical Research Laboratory, Wright-Patterson AFB, Clauser, McConville & Young, Weight, volume, and center of mass of segments of the human body, AMRL-TR-69-70. Clauser, McConville and Young (1969): the body-segment weights behind the hand-load figures. Retrieved September 25, 2026. https://ntrs.nasa.gov/api/citations/19700027497/downloads/19700027497.pdf
  5. Journal of Applied Biomechanics (Human Kinetics), Martin JC, Milliken DL, Cobb JE, McFadden KL, Coggan AR. Validation of a Mathematical Model for Road Cycling Power. Martin et al. (1998): the road power equation behind every range figure, and its Appendix I worked example (rolling resistance 23.6 W, potential energy 22.1 W), the two terms the model reproduces at 45.7 W together. Retrieved November 10, 2026. https://collections.lib.utah.edu/dl_files/b4/8e/b48ef26086091662c561e673d7bd990d77868437.pdf
  6. Journal of Sports Sciences (Taylor & Francis), Tengattini S, Bigazzi AY. Physical characteristics and resistance parameters of typical urban cyclists. Tengattini and Bigazzi (2018): the drag area of upright cruiser riders (0.640 m2) and of mountain-bike riders (0.603 m2). Retrieved November 10, 2026. https://civil-reactlab.sites.olt.ubc.ca/files/2022/11/Tengattini_2018_Physical-characteristics-and-resistance-parameters-of-typical-urban-cyclists.pdf
  7. World Electric Vehicle Journal (MDPI), Arango I, Lopez C, Ceren A. Improving the Autonomy of a Mid-Drive Motor Electric Bicycle Based on System Efficiency Maps and Its Performance. Arango, Lopez and Ceren (2021): the battery-efficiency equation, about 97% at the MG1703's 12 mph draw. Retrieved October 4, 2026. https://mdpi-res.com/d_attachment/wevj/wevj-12-00059/article_deploy/wevj-12-00059.pdf
  8. IEEE / EPE'19 ECCE Europe (Karlsruhe Institute of Technology authors), Schmitt M, Decker S, Doppelbauer M. Measuring and Characterization of a Pedal Electric Cycle (Pedelec) on a Full System Test-Bench. Schmitt, Decker and Doppelbauer (2019): a measured pedelec used 75% of its nominal pack, the 25% planning reserve. Retrieved October 4, 2026. https://publikationen.bibliothek.kit.edu/1000100371/50695920
  9. McMaster University (Kollmeyer et al.), Mendeley Data, LG 18650HG2 Li-ion Battery Data. LG HG2 18650 cell data (Kollmeyer, McMaster University): energy by temperature behind the cold table. Retrieved November 9, 2026. https://doi.org/10.17632/b5mj79w5w9.2
  10. NOAA, NASA, US Air Force (NOAA-S/T 76-1562; NASA TM-X-74335), U.S. Standard Atmosphere, 1976. U.S. Standard Atmosphere, 1976: air density by temperature for the cold table. Retrieved November 9, 2026. https://ntrs.nasa.gov/api/citations/19770009539/downloads/19770009539.pdf
  11. Bafang, OEM Workbook 2021. Bafang's OEM workbook (2021): the comparable hub motor's shape and its 'Efficiency (%) >= 80' floor, rebased to DWMEIGI's 750 W and 48 V. Retrieved October 3, 2026. https://www.bafang-e.com/Uploaded/Labels/BAFANG%20Workbook%20OEM%202021.pdf
  12. Sheldon Brown and John Allen (Harris Cyclery), Tire Sizing Systems. Sheldon Brown's tire sizing table: the 406 mm bead seat of a 20-inch tire, behind the 23.98 in wheel and the tire control. Retrieved September 28, 2026. https://www.sheldonbrown.com/tire-sizing.html
  13. Bicycle Rolling Resistance (Jarno Bierman), Fat Bike Tires Test Results. Bicycle Rolling Resistance's fat-bike drum results, ten 26 x 4.00 tires at 12 psi: the median (0.0105) and lowest (0.0070) rolling resistance in the tire table. Retrieved September 25, 2026. https://www.bicyclerollingresistance.com/fat-bike-reviews
  14. Bicycle Rolling Resistance (Jarno Bierman), Kenda Juggernaut Pro 2016. Bicycle Rolling Resistance's Kenda Juggernaut Pro review: the heaviest-rolling casing on its drum, the tire table's high bracket. Retrieved September 25, 2026. https://www.bicyclerollingresistance.com/fat-bike-reviews/kenda-juggernaut-pro-2016
  15. U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A. Average Price of Electricity to Ultimate Customers by End-Use Sector. US EIA Electric Power Monthly Table 5.6.A: the US residential average of 18.16 cents per kilowatt-hour behind about $2.65 per 1,000 miles. Retrieved November 10, 2026. https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=epmt_5_06_a
  16. U.S. Government Publishing Office, United States Code, Title 15 (2024 edition). 15 U.S.C. § 2085(b): a low-speed electric bicycle is 'a two- or three-wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts (1 h.p.)'. Retrieved November 9, 2026. https://www.govinfo.gov/content/pkg/USCODE-2024-title15/html/USCODE-2024-title15-chap47-sec2085.htm
  17. Texas Legislature, Texas Transportation Code, Chapter 664. Tex. Transp. Code § 664.001: Texas's electric bicycle, whose motor is rated 'fewer than' 750 watts. Retrieved November 9, 2026. https://statutes.capitol.texas.gov/Docs/TN/htm/TN.664.htm
  18. Florida (official code or session law), Fla. Stat. § 316.003(23). Fla. Stat. § 316.003: Florida's electric bicycle, whose motor is rated 'less than' 750 watts. Retrieved November 10, 2026. https://www.flsenate.gov/Laws/Statutes/2025/316.003
  19. Florida Legislature, Florida Statutes § 316.20655. Fla. Stat. § 316.20655(2): Florida exempts an electric bicycle from 'financial responsibility, driver or motor vehicle licenses, vehicle registration'. Retrieved November 6, 2026. https://www.flsenate.gov/Laws/Statutes/2026/316.20655
  20. New York (official code or session law), N.Y. VTL § 102-c. N.Y. VTL § 102-c: New York's bicycle with electric assist, whose motor is 'less than' 750 watts. Retrieved November 10, 2026. https://www.nysenate.gov/legislation/laws/VAT/102-C
  21. Ohio (official code or session law), R.C. 4511.01(SSS)-(VVV). Ohio R.C. 4511.01: Ohio's electric bicycle classes, each with 'an electric motor of less than seven hundred fifty watts'. Retrieved November 10, 2026. https://codes.ohio.gov/ohio-revised-code/section-4511.01
  22. Montana Legislature, Montana Code Annotated § 61-8-102. MCA § 61-8-102(7): Montana's 'two tandem wheels'. Retrieved November 9, 2026. https://archive.legmt.gov/bills/mca/title_0610/chapter_0080/part_0010/section_0020/0610-0080-0010-0020.html
  23. Rhode Island General Assembly, R.I. Gen. Laws § 31-1-3. R.I. Gen. Laws § 31-1-3: Rhode Island's 'a two-wheel (2) vehicle'. Retrieved November 9, 2026. https://webserver.rilegislature.gov/Statutes/TITLE31/31-1/31-1-3.htm
  24. New Jersey Legislature, P.L.2025, c.285. New Jersey P.L.2025, c.285: a bicycle whose throttle moves it without pedaling is a motorized bicycle. Retrieved November 10, 2026. https://pub.njleg.gov/Bills/2024/PL25/285_.HTM
  25. Connecticut General Assembly, Connecticut General Statutes, chapter 246, § 14-1. C.G.S. § 14-1: Connecticut's definitions, whose electric bicycle leaves a three-wheeler open. Retrieved November 9, 2026. https://www.cga.ct.gov/current/pub/chap_246.htm#sec_14-1
  26. Pennsylvania General Assembly, 75 Pa.C.S. § 102. 75 Pa.C.S. § 102: Pennsylvania's pedalcycle with electric assist, a 'vehicle weighing not more than 100 pounds'. Retrieved November 9, 2026. https://www.palegis.us/statutes/consolidated/view-statute?txtType=HTM&ttl=75&div=0&chapter=1&section=102
  27. Alaska State Legislature, Alaska Statutes § 28.90.990. AS 28.90.990: Alaska's motor vehicle definitions, with no e-bike definition. Retrieved October 25, 2026. https://www.akleg.gov/basis/statutes.asp?media=print&secStart=28.90.990&secEnd=28.90.990
  28. Kentucky General Assembly, Kentucky Revised Statutes § 189.010. KRS 189.010: Kentucky's traffic definitions, with no e-bike definition. Retrieved October 25, 2026. https://apps.legislature.ky.gov/law/statutes/statute.aspx?id=57661
  29. Forest Service, USDA (eCFR), 36 CFR § 212.1 — Definitions. 36 CFR § 212.1: on National Forest System land a motor vehicle is 'Any vehicle which is self-propelled', rail vehicles and mobility devices aside. Retrieved November 10, 2026. https://www.ecfr.gov/current/title-36/chapter-II/part-212/subpart-A/section-212.1
  30. Forest Service, USDA (eCFR), 36 CFR § 261.13 — Motor vehicle use. 36 CFR § 261.13: 'it is prohibited to possess or operate a motor vehicle ... other than in accordance with those designations'. Retrieved November 10, 2026. https://www.ecfr.gov/current/title-36/chapter-II/subchapter-B/part-261/subpart-A/section-261.13
  31. Forest Service, USDA (eCFR), 36 CFR § 261.1b — Penalty. 36 CFR § 261.1b: 'imprisonment of not more than six months or a fine in accordance with the applicable provisions of 18 U.S.C. 3571 or both'. Retrieved November 10, 2026. https://www.ecfr.gov/current/title-36/chapter-II/subchapter-B/part-261/subpart-A/section-261.1b
  32. Bureau of Land Management, Interior (eCFR), 43 CFR § 8341.1 — Regulations governing use. 43 CFR § 8341.1: off-road vehicles on BLM land in areas and trails 'designated as open to off-road vehicle use'. Retrieved November 10, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8341/section-8341.1
  33. Bureau of Land Management, Interior (eCFR), 43 CFR § 8340.0-7 — Penalties. 43 CFR § 8340.0-7: 'a fine of not more than $1,000 or imprisonment for not longer than 12 months, or both'. Retrieved November 10, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8340/section-8340.0-7
  34. Bureau of Land Management (eCFR), 43 CFR 8340.0-5 Definitions. 43 CFR § 8340.0-5(a)(5): an e-bike counts as a bicycle only on routes 'upon which mechanized, non-motorized use is allowed' where the authorized officer 'has expressly determined' so. Retrieved November 9, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8340/section-8340.0-5
  35. U.S. Consumer Product Safety Commission, Recall database (saferproducts.gov REST API), query by field. CPSC recall service: all 10,082 recall records read November 11, 2026, none naming DWMEIGI, MEIGI or the MG1703 (Ancheer and Specialized controls found). Retrieved November 11, 2026. https://www.saferproducts.gov/RestWebServices/Recall
  36. U.S. Consumer Product Safety Commission, Product safety warning listing (CSV) — U.S. Consumer Product Safety Commission. CPSC product safety warnings file: all 389 rows read November 11, 2026, none naming DWMEIGI, MEIGI or the MG1703 (Ridstar control found). Retrieved November 11, 2026. https://www.cpsc.gov/s3fs-public/recall-data/product_safety_warning_listing.csv
  37. U.S. Consumer Product Safety Commission, Recalls RSS feed — U.S. Consumer Product Safety Commission. CPSC recall feed, October 8 to November 5, 2026: no item naming DWMEIGI or the MG1703. Retrieved November 11, 2026. https://www.cpsc.gov/Newsroom/CPSC-RSS-Feed/Recalls-RSS
  38. UL Solutions, E-Bikes Certification: Evaluating and Testing to UL 2849. UL Solutions: UL 2849, 'the Standard for Electrical Systems for eBikes', examining 'the electrical drive train, battery, and charger system combinations'. Retrieved November 10, 2026. https://www.ul.com/services/e-bikes-certificationevaluating-and-testing-ul-2849
  39. DWMEIGI (dwmeigi.com), Warranty Policy. DWMEIGI's warranty policy: the frame 2 years, all other parts 1 year limited, consumables including batteries and tires 1 year; it 'recommends professional assembly' and excludes damage 'caused by improper assembly'. Retrieved November 11, 2026. https://dwmeigi.com/pages/warranty-policy
  40. DWMEIGI (dwmeigi.com), MG1703 product page. DWMEIGI's MG1703 product page (as deposited October 14, 2026): '750W', '48V 18.2Ah', '20 MPH', '60 Miles', '330 Lbs Max Load', '4-5 Hours', the twist throttle, walking mode, '48V 22A Controller', the 'step through carbon steel frame', '58L big storage space', the SIZE & FIT chart, the UL charger line, the FAQ's rider window and 'max weight of 400lbs', and DWMEIGI's own model name. Retrieved October 14, 2026. https://dwmeigi.com/products/mg1703-zeus-3-wheel-fat-tire-electric-trike
  41. DWMEIGI, User Manual for MG1703. DWMEIGI's MG1703 user manual: 'Maximum load capacity = 330lbs.'; 'Don't let children under the age of 18 ride the bike.'; charging 'about 4-6 hours', never 'more than 10 hours', a stored pack charged 'at least one time per month'; each battery bar 'approx. 20%'. Retrieved November 11, 2026. https://cdn.shopify.com/s/files/1/0590/4246/3929/files/User_Manual_For_MG1703.pdf?v=1678869004
  42. Redtail eBikes, Terms of service. Our terms of service: the Florida corporation that sells the trike, and 'We will help facilitate warranty claims with the manufacturer'. Retrieved November 10, 2026. https://redtailebikes.com/policies/terms-of-service
  43. Redtail eBikes, Contact. Our contact page: sales@redtailebikes.com and 'We typically respond to email within one business day'. Retrieved November 10, 2026. https://redtailebikes.com/pages/contact
  44. Redtail eBikes, Shipping policy. Our shipping policy: 'free shipping on every electric bike within the contiguous United States'; dispatch in 1-3 business days, transit 5-10; Alaska, Hawaii, territories, P.O. boxes and remote areas may cost extra or be excluded. Retrieved November 11, 2026. https://redtailebikes.com/policies/shipping-policy
  45. Redtail eBikes, Refund policy. Our refund policy: damage photos within 48 hours and we file the carrier claim; defects covered under the manufacturer's warranty, which we coordinate; change-of-mind returns within 72 hours, unopened, with a 15% restocking fee plus return shipping; a 3% fee to cancel before dispatch. Retrieved November 11, 2026. https://redtailebikes.com/policies/refund-policy
  46. DWMEIGI (dwmeigi.com), Electronics-MG1703. DWMEIGI's Electronics-MG1703 page: '48V18.2AH(873.6Wh)', 'lithium 2600mah cells', 'rated over 600 charge cycles', '48V750W BAFANG brushless geared hub motor, max torque 80NM', '48V750W with 25A current', 'Taking 6 hours to charge', the 5-level 12-magnet assist, 'Full twist throttle', TEKTRO mechanical calipers with motor cutoff and a parking brake clamp, '48T chain wheel, 170mm crank length', 'SHIMANO 7 speed', the 50 mm fork with lockout, the KENDA K1167 20 x 4 tire, the baskets' 5 kg and 25 kg, the 300 mm x 28.6 mm seat post. Retrieved November 11, 2026. https://dwmeigi.com/pages/electronics-mg1703
  47. DWMEIGI (dwmeigi.com), User Manual (Display manual for MG1703). DWMEIGI's user-manual page, 'DISPLAY MANUAL FOR MG1703' (KD51C): assist levels 0 to 5, level 1 at start-up, and the walk mode at 'a uniform speed of 6 Km/h'. Retrieved November 11, 2026. https://dwmeigi.com/pages/user-manual
  48. Playcut, Playcut. Playcut (playcut.ai): the image service on which Nano Banana Pro generated the charcoal studio behind the cover, made for an earlier Redtail cover and reused unchanged. Retrieved November 11, 2026. https://playcut.ai