Addmotor Greattan D Review: 500 lb Electric Cargo Trike

Electric cargo trike · 750 W rear-mounted motor and a differential · torque sensor and a half-twist throttle · one 48 V 20 Ah Samsung pack, 960 Wh, or two for 1,920 Wh · 350 lb rider plus 150 lb on a 29.5 × 17.3-inch rack · 19 × 7.0-inch rear tires · 148 lb in Addmotor's table · $3,499 with one pack on October 14, 2026 · verified October 14, 2026

Quick Answer — The Addmotor Greattan D is a $3,499 electric cargo trike with a 750 W rear-mounted motor, a differential, a torque sensor and one 960 Wh pack, rated for a 350 lb rider plus 150 lb on its flat rack. At a steady 12 mph on the throttle over level pavement, a 180 lb rider computes to about 63 miles.

Settle three numbers before you order: your barefoot inseam against the 37.8-inch top saddle setting (fit), your load against 500 lb (carrying), and whether your state's wording takes in a 750 W three-wheeler with a throttle (class).

What this review covers

Specification · What it is · Fit · Motor · Battery · Range · Carrying · Brakes · Fork and tires · Weight and width · Mercer test · Recalls · Class · Farms and trails · Flags · Verdict · Checklist · Buying · FAQ · Limitations · Bottom line · References

How we verified this Addmotor Greattan D review

Every Greattan D specification here was read on October 14, 2026 from Addmotor's own documents: the product page with its option matrix, feature panels, Size & Fit, Technical and Performance tables and FAQ, its size drawing, its question board and the three Addmotor posts that print Greattan D figures. Our price, stock, checkout and policies were read from our own store that day.

Each number names its source where you meet it, and the range and fit models list their inputs under their tables. We carry the Greattan D, so the red flags get the care the green ones do.

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

Addmotor's Greattan D specification

Addmotor's Technical, Performance and Size & Fit tables as served on October 14, 2026, every value present again beside the September 28 copy; the comparison graphic is an image on the same page, and the 177 lb answer is Addmotor's board reply of November 30, 2025.

Addmotor's Size & Fit table numbers the frame the way its drawing labels it:

The Size & Fit table, October 14, 2026. Both saddle heights are measured from the ground up, the way the arrows run on Addmotor's drawing.

A cargo trike with a flat rack and a backrest saddle

The Greattan D carries its load behind you, on a flat railed rack 29.5 inches long over two 19 × 7.0-inch tires. Addmotor's January 29, 2026 post calls it a "Premium Electric Cargo Trike" and sets it to work for couriers, families, farmers and small businesses.

The one-pack Greattan D in Addmotor's studio image; Addmotor's table puts it at 32.7 inches across at its widest.

You sit upright on a padded saddle with a backrest, step through a frame whose low point is 15.7 inches off the ground, and steer a 24 × 4.0-inch front wheel on a suspension fork. Addmotor's FAQ points to the "low step-through frame" and the "adjustable backrest saddle", and its tables print a rider window of 5'2" to 6'4".

One saddle, one rider. The rack is rated for 150 lb of cargo, and Addmotor's tables print no passenger seat; the Greattan L is the Addmotor trike our reviews cover with a seat behind the rider.

Owners and readers describe it in their own words. On Addmotor's page, a buyer's five-star review of June 18, 2026 says "The cargo capacity is larger compared to most bikes I’ve tried, which is important since I often need to carry heavier items." A Reddit commenter, on May 12, 2025, described the new model as one "that uses ATV (or riding lawn mower) wheels on the back".

Addmotor's delivery photograph: an insulated box strapped to the flat rack, which Addmotor rates for 150 lb.

Addmotor's photographs also show a wire basket on the front. Its April 29, 2025 post describes "an oversized rear cargo rack and a smaller front basket", while the specification tables list only the rear rack, so ask us whether a basket comes in your box before you plan a load around it.

Who the Greattan D fits: 5'2" to 6'4" and a 15.7-inch step

Across Addmotor's 5'2" to 6'4" window, the 109% saddle formula asks for 32.2 to 41.0 inches between the saddle top and the pedal, shortest rider to tallest. Addmotor's saddle heights, 29.9 to 37.8 inches, run from the ground, so any barefoot inseam over about 34.7 inches wants more than the top setting can give, before the pedal's own height off the ground is even counted.

That formula sets the saddle top at 109% of your inseam above the pedal axle with the crank pointing down; Peveler and colleagues compared it with two other methods in 2005. Each row below is a target your tape measure confirms on the trike, because Addmotor prints no bracket height or crank length.

Three steps get you to your number:

1. Measure your inseam barefoot. Stand against a wall, pull a hardcover book up between your legs as a saddle would press, keep it level, and read the distance from the floor to the book's spine.
2. Find your height in the saddle table, then in the ceiling table under it, which counts the riders at your height whose legs outgrow the top setting.
3. On the trike, turn one crank down in line with the seat tube and measure from the saddle top to the center of the low pedal; if the post tops out short of your row, email us before the first ride.

The drawing pictures the saddle at its lowest and highest settings over one photograph of the trike; its arrows do not share a scale, as the fit arithmetic shows.

How high does my saddle go?

This is where the saddle top belongs, measured from the pedal axle. The middle column is 109% of the median inseam at your height; the last two mark 106%, the low end of the range Ferrer-Roca and colleagues report as recommended, and 110.4%, the high end of the one they propose.

Built from the 6,068 bodies the US Army measured for ANSUR II: the inseam column runs from the 5th to the 95th percentile at each height, and the three distances are for that height's median inseam. Each extra inch of your own inseam adds 1.09 inches to the middle column.

Then check the top setting. The post stops at 37.8 inches above the ground, and the pedal sits above the ground even at the bottom of its stroke, so the most the saddle can reach from that pedal is less than 37.8 inches. A barefoot inseam over 34.68 inches therefore asks the 109% rule for more than the post holds, and one over 35.66 inches asks even the 106% figure for more:

Riders counted per 100 at each height from the same ANSUR II bodies, set against Addmotor's 37.8-inch top saddle height (Size & Fit table, October 14, 2026). Each count is a minimum: the pedal's unpublished height above the ground can only add riders.

At the short end, the question is the lowest setting. At 5'2", 22 of the 245 surveyed riders have a 106% figure under the 29.9-inch lowest setting, as do 5 of 343 at 5'3" and 1 of 413 at 5'4"; whether the post drops low enough for them depends on that same unpublished pedal height.

Addmotor's window reaches 6'4", and the formula rows run out of post sooner. At 6'2" at least 67 of 100 surveyed riders cannot reach even the 106% figure, and at 6'0" at least 61 of 100 ask the 109% rule for more than the top setting gives. Both sets of figures sit beside Addmotor's own window, so measure your barefoot inseam and read your row before you order.

Can I step through it at a stop?

Yes, at every height Addmotor's window covers. The 15.7-inch standover sits below the barefoot inseam of every surveyed rider from 5'2" to 6'4".

The same ANSUR II bodies against Addmotor's 15.7-inch standover; the inseam column is each height's median.

A low step earns its keep on a loaded trike: you stand astride the frame with both feet flat while you strap a load down, and the parking brake holds the trike still while you do it.

Will I lean forward to reach the bars?

Your lean is not computed here, because nothing Addmotor prints places the grips against the saddle. The tables give a 14.2-inch reach and a 45.6 to 47.6-inch handlebar height, but no seat angle and no grip coordinates, and the size drawing would not hold to one scale when it was measured (the formula subsection prints each comparison).

What Addmotor's photographs show is an upright cockpit: a swept bar on a tall stem above the front basket, and a backrest behind the saddle. Sit back against the backrest, and if your elbows lock straight to reach the grips, the saddle sits too far back on its rails for your arms.

How much weight goes through my hands?

Not computed either, for the same reason. The share of your weight that reaches the grips follows from your lean, and the lean needs a grip position Addmotor does not print. For scale only: ten road racers riding on their brake hoods in Carahalios's 2015 laboratory study carried about 15% of their weight on the bars, a stretched position unlike an upright cargo trike's.

If your palms or wrists ache after a loaded ride, a padded grip helps: Slane and colleagues measured lower pressure under the hand's ulnar nerve with padded gloves than without.

How do I set the saddle at home?

Start at your row, then let your knee settle it. With your heel on the pedal at the bottom of its stroke your leg should be straight; moved to the ball of the foot, the knee then bends 25 to 35 degrees, the range Peveler, Pounders and Bishop tied to the heel method.

Set the saddle height first and the backrest's angle second, with the rack empty, and ride a quiet block at assist level 1 before you load the trike.

The fit arithmetic, step by step

One rule builds the saddle table: the saddle top sits 1.09 times your inseam from the pedal axle at the bottom of the stroke. For a 5'8" rider on the median 32.6-inch inseam that is 35.6 inches; LeMond's rule, 88.3% of inseam measured from the crank axle, gives the same rider 28.8 inches.

The two rules start from different points, the pedal and the crank axle, and moving between them takes a crank length Addmotor's tables do not print, so each appears here as its authors published it.

The model checks out against the literature it rests on. Set with a 170 mm crank, LeMond's rule lands the 6,068 ANSUR II bodies at 109.0% of inseam from the pedal on average, against the 109.2 ± 0.9% Peveler and colleagues report for the same comparison.

The drawing was measured as a ruler, and it does not hold to one scale. Scaled by the 52.7-inch wheelbase, hub to hub, it reproduces one of Addmotor's six other printed dimensions within 3.5%, the total length; scaled by the 77.1-inch length, one:

Points read on Addmotor's size drawing to ±3 px; the front tire's nominal diameter is a 24-inch decimal tire's 507 mm bead seat plus twice 4.0 inches, from Sheldon Brown's tire-sizing table. Addmotor's own dimension arrows imply 14.7 to 16.5 pixels per inch among themselves, so the drawing illustrates the frame rather than measuring it, and no crank length or grip position is taken from it.

A 750 W rear motor, a differential and a torque sensor

One 48 V motor, rated 750 W and mounted at the rear, drives the axle, and a differential splits its pull between the two rear wheels. The Technical table reads "48V*750W Rear-Mounted Motor", and Addmotor's feature copy pairs the 7-inch rear tires with "a 750W rear motor & 90 Nm torque".

Addmotor prints a peak figure off the table: the page's comparison graphic reads "750W Rear-Drive Motor (1400W Peak,90Nm Torque)", and its September 5, 2025 post gives the Greattan D the same "1400W peak, 90Nm torque". The 750 W rating is the figure each state's e-bike definition reads (class).

The torque sensor makes the assist follow how hard you push. The Performance table lists "Torque Sensor" with "7 Level Pedal Assist" and a "Variable Speed Control - 1/2 Twist Throttle", so the trike moves on the throttle alone and adds more help as you press harder on the pedals.

The differential is what lets a loaded trike corner. The Performance table answers "Yes" on its differential row, and Addmotor's feature copy says its speed differential works to "Enhance electric cargo trike performance and maneuverability, ensuring safe turning and cornering" (the brakes section shows the part).

One 960 Wh pack, or two for 1,920 Wh

Each pack holds 960 watt-hours, 48 volts times 20 amp-hours, and the Dual-Battery build fits two. The Technical table lists "1*Samsung Cell Battery Pack/2*Samsung Cell Battery Pack(Option)", and Addmotor's January 29, 2026 post prints the energy as 960 Wh for one pack and 1,920 Wh for two.

The certification is in Addmotor's words: the feature copy promises "UL2271-certified Samsung batteries", the comparison graphic prints "UL2271" beside the pack, and the April 29, 2025 post calls the second pack "UL 2271 certified". If your building, insurer or employer wants the certificate itself, email us and we will request it from Addmotor in writing.

On our store, the one-pack build is the one you can check out today. The Dual-Battery build is listed at $4,400 on both our store and Addmotor's page, and on October 14, 2026 ours read sold out while Addmotor's option matrix showed it in stock; our listing asks you to email for a current quote before ordering it.

Plan on about ten hours at the charger's rated current. Addmotor's charger is rated "48V*2.0A", and 20 amp-hours at 2.0 amps is 10 hours of charging current for one pack.

A full charge costs about 18 cents. At 18.31 cents per kilowatt-hour, the US residential average for July 2026 in the Energy Information Administration's Table 5.6.A, one 960 Wh pack takes about 17.6 cents before the charger's losses; 1,000 miles a year at 12 mph on the throttle draws about 15.3 kWh, roughly $2.80 a year.

Addmotor's own pack-care advice gives the planning numbers used in the range tables:

• recharge "when it has a 10%-15% charge left", as its post on battery health advises;
• for the longest life, "keep your battery charge between 20% and 80% for the best lifespan", in its maintenance guide.

Range: how far a charge takes the Greattan D

On one 960 Wh pack and the throttle alone over level pavement, a 180 lb rider goes about 70 miles at 10 mph, 63 at 12 and 38 at the 20 mph top; with 500 lb aboard, the 12 mph figure falls to about 40.

Pedal easily, about 75 W, and the 12 mph figure grows to about 119 miles; hold a 6% grade at 10 mph on the throttle instead, and one charge lasts about 12.

Plan a day of hauling in three steps:

1. In the first two tables, find the row for the speed you hold and the column for how hard you pedal.
2. Add the climbing: each 1,000 feet of 4 to 8% grade costs 184 to 221 Wh at 10 mph on the throttle (the hills tables).
3. Adjust for your rider and cargo weight and the day's temperature, then plan on 85% of the pack.

Each row is one steady ride, built from Addmotor's figures, a comparable motor's published data, drum measurements of ten fat tires and a cycling-power model validated on an open road; the formula subsection traces one ride from the tire patches to the cells.

How many miles does each speed give, and how much do your legs add?

Every step up in speed costs miles on the throttle, because the air's drag grows with the square of your speed. At 20 mph each mile draws 25.3 Wh; at 10 mph, 13.7.

On the throttle alone with a 180 lb rider and the 148 lb trike, over level pavement in 77 °F air. "With 15% kept" holds back the top of the "10%-15%" range at which Addmotor advises recharging; the last column does the same for two packs.

Your legs stretch every row. The model counts 75 W as easy pedaling and 150 W as steady; with the motor off, those efforts alone would move a 180 lb rider on this 148 lb trike at about 8.1 and 12.3 mph on level pavement.

Miles on one 960 Wh pack, level pavement, 180 lb rider, 77 °F. "Legs alone" means the rider's effort covers the speed by itself and the motor draws nothing.

Does shifting gears save battery?

On this trike, the gear you pick changes your legs' cadence and leaves the motor's speed alone. Addmotor's close-up of the rear axle shows the 7-speed cassette riding on the motor and a chain carrying the motor's drive up to the differential, so the motor turns with the wheels, and the "Shimano 7-Speed" only changes how fast your legs turn the cranks.

What changes the battery's work is how much you add, so the table prices your effort in watt-hours per mile:

Watt-hours per mile from the pack, 180 lb rider, 77 °F. "—" means the throttle alone cannot hold 12 mph up an 8% grade with this load; the pedaling columns show what that climb costs once your legs help.

Shift down before a climb so your legs can keep pushing. A gear that keeps your cadence comfortable lets you hold 75 or 150 W up the grade, and each watt you add is one the pack does not supply.

What does a climb cost the pack, and how fast will it climb?

Climbing is where a loaded trike spends its pack. The table holds 10 mph up each grade for a 180 lb rider:

One pack, 180 lb rider and the 148 lb trike at a steady 10 mph, 77 °F; "easy pedaling" adds 75 W. A whole-day route mixes grades, so use the 1,000-foot figures below for the climbing part only.

Each 1,000 feet of climbing costs about 184 Wh at 4%, 201 Wh at 6% and 221 Wh at 8%, at 10 mph on the throttle with 180 lb aboard; pedaling 75 W lowers the 4% figure to about 167.

Load changes the climbing speed far more than it changes flat-ground range. The model finds the fastest speed the motor holds on each grade:

The highest steady speed the model's 750 W motor holds, on the throttle unless marked, 77 °F; "past the model's motor" means it cannot hold even 2 mph at that load and grade. Steady state only: a short, steep pitch taken with momentum goes faster.

How much do rider and cargo weight take off the range?

Every pound you add costs miles, and a full load costs most on a climb. The table runs from 100 lb to Addmotor's 500 lb of rider and cargo together:

One pack, level pavement or a steady 8% grade at 10 mph, on the throttle, 77 °F; the trike's own 148 lb is held fixed. "Past the model's motor" means the throttle alone cannot hold 10 mph up 8% at that load.

From 260 lb up, an 8% climb at 10 mph needs your legs. On the throttle alone the model's 750 W motor cannot hold that speed there, and the climbing table shows the slower speeds it can hold.

The trike's own weight moves the range too. Addmotor's table prints 148 lb, and its board answer of November 30, 2025 says "about 177 lbs with battery included", so the model runs both:

180 lb rider, one pack, 77 °F, on the throttle. Neither figure names a build, so 148 lb stays the central case and 177 lb is a sensitivity.

How much range does cold weather take away?

A cold pack gives less, and cold air and stiffer tires ask for more. The table keeps the 12 mph throttle ride and changes only the temperature:

12 mph on the throttle, 180 lb rider, one pack. The middle column is the share of the pack's energy a cell gives at that temperature against 77 °F, from McMaster University's LG HG2 cell data; the brackets carry other makers' published cells, and the air density follows the 1976 US Standard Atmosphere.

Charge and store the pack indoors in winter, and take it out warm. The cold rows assume the cells start the ride at air temperature; a pack carried out from a heated room starts nearer the 77 °F row.

Do the tires or the riding position change the range?

On the throttle at 12 mph, the tire alone moves the range from about 56 to 77 miles. Addmotor names no tire make or casing for the 24 × 4.0 front and 19 × 7.0 rears, so the model brackets them with ten measured fat tires:

One pack, 180 lb rider, level pavement, on the throttle, 77 °F; rolling resistance from Bicycle Rolling Resistance's fat-bike drum tests, median and extremes of the ten.

Your posture moves it a little. The model uses the drag of 37 upright cruiser riders, 0.640 m², from Tengattini and Bigazzi's 2018 field measurements; their everyday mountain-bike riders' 0.603 m² would carry the 12 mph throttle ride about 64 miles in place of 63.

Addmotor's 120 and 60 to 70 miles, as steady rides

Addmotor's figures are steady rides at an easy pace. The Technical table prints "120 Miles (Dual-Battery PAS1)", its board answer of November 13, 2025 says "approximately 130 miles on a full charge with dual batteries, when operated in PAS level 1", and its FAQ gives one pack "around 60 to 70 miles, depending on payload, terrain, and riding habits".

Its January 29, 2026 post prints both two-pack figures: its "Max Range" row reads "Up to 130 miles (PAS 1)", and its real-world row "120 Miles (Dual-Battery PAS1)".

The model finds the steady speed that spends each figure's watt-hours over its miles, with a 180 lb rider on level pavement:

Two packs, 1,920 Wh, for the 120 and 130-mile figures; one pack, 960 Wh, for the midpoint of 60 to 70 miles. The 130-mile answer and the 65-mile midpoint ask the same 14.8 Wh a mile.

Read Addmotor's 120 miles as a ride of about 13 mph on the throttle, or about 17 mph with easy pedaling, which is what assist level 1 asks of you: your legs do part of the work. The board answer adds that the figure is "for reference only and may vary depending on factors such as terrain".

For a longer-lived pack, ride inside Addmotor's 20% to 80% band. That window is 576 Wh of one pack, 60% of the 960:

Level pavement, 180 lb aboard, the 576 Wh between 20% and 80% of one pack, 77 °F; easy pedaling adds 75 W.

The formula behind the range tables

Every range table here rests on one equation, the wheel power a steady ride needs in still air, as Martin and colleagues validated on an open road in 1998:

P = v × [ m × g × (Crr × cos θ + sin θ) + ½ × ρ × CdA × v² ]

Here P is the power at the wheels and v the road speed; m is the mass of trike, rider and load, g gravity, θ the slope's angle, Crr the tires' rolling resistance, ρ the air's density and CdA the rider's drag area. Three steps carry that wheel power back to the pack:

1. Your legs reach the wheels through a chain that is 97.7% efficient, the figure Martin and colleagues measured, and the motor supplies the rest of what the ride asks.
2. The motor takes its curve from a comparable hub with published numbers: Bafang's RM G0H0, which the 2021 OEM workbook lists at 510 rpm unloaded and 426 rpm at rated load on 48 V, "≥ 80" percent efficient, with a 90 N·m maximum. Scaled to Addmotor's 48 V and 750 W, its no-load speed is tuned so a 180 lb rider on level ground tops out at the printed 20 mph.
3. The pack loses some power as heat on its way out; the size of that loss comes from Arango, Lopez and Ceren's measurements of a 48 V pack.

Miles = 960 Wh × the share usable at the day's temperature ÷ watt-hours per mile, where watt-hours per mile is the power the cells deliver divided by the speed in mph.

One ride, worked through: a 12 mph throttle ride over level pavement with 180 lb aboard costs 15.3 Wh a mile, traced from the tires back to the cells. Trike and rider weigh 148.8 kg together, and holding them at 12 mph takes 141.0 W at the wheels: 82.5 W against the tires' rolling resistance and 58.5 W against the air.

At 12 mph a 27-inch wheel turns 149 rpm. The motor scaled from Bafang's numbers, counted at the wheels, makes 1.68 N·m per amp through a 0.405 Ω winding and idles at 0.83 A; this ride asks 9.0 N·m of it, a current of 6.2 A at 79.1% efficiency.

Add the pack's own losses and the cells must supply 183.8 W, or 15.3 Wh for each mile at 12 mph; 960 Wh divided by 15.3 comes to about 62.7 miles, and 53.3 if you keep 15% in reserve.

The wheel size and the gearing Addmotor leaves out cancel out. Run again at a 33.0-inch wheel, the motor is retuned to the same 20 mph top speed, and every watt-hour and mile in the tables comes out the same; only the wheel's rpm and the motor's torque change, and a chain ratio between motor and axle moves those two the same way.

The model earned its place by matching two published results first:

Martin and colleagues' worked example is their paper's Appendix I (8.36 m/s, 90 kg, a 0.3% grade), and the rated point is the RM G0H0's in Bafang's workbook. An 82% motor, 2 points over Bafang's floor, would carry the same 12 mph throttle ride about 68 miles in place of 63 (Limitations item 4).

No owner's ride to an empty Greattan D pack with a stated load and speed turned up in the records read for this page (Limitations item 8), so those two checks are the tables' footing.

Carrying: 350 lb on the saddle, 150 lb on the rack

Addmotor rates the Greattan D for 500 lb: "350 LBS + 150 LBS" in its Technical table, the rider and the rear rack. Its FAQ says the same in words, "a total payload capacity of 500 lbs, including 350 lbs for the rider and 150 lbs for the rear rack", and its board answer of December 5, 2025 gives "The max payload capacity of the Greattan D trike is 500lbs."

One image on the same page reads higher: its alt text says "550 lbs payload". The two figures in the tables and the FAQ agree, so plan to 350 lb on the saddle and 150 lb on the rack.

Addmotor's rack image with its own dimension marks; the same panel on Addmotor's page also pictures the deck without its railed basket.

The rack is a flat platform inside a low railed frame. The table sizes it at 29.5 inches long, 17.3 wide and 4.1 high, the board answer of December 15, 2025 repeats the figures, and the alt text of Addmotor's rack image calls it a "DIY open-design cargo rack".

Strap every load to the rails, and keep it inside the rack's 150 lb. The two limits are separate: a 250 lb rider still has only 150 lb for the rack, and a rider over 350 lb is past the saddle's rating whatever the rack carries.

A trailer adds a second load, and Addmotor says the Greattan D can pull its own. Asked "Is this model suitable for trailer?", Addmotor answered on December 12, 2025 "Yes, the trailer suits the Greattan D trike", linking its trailer listing. Our store does not list that trailer today, and a trailer's weight sits outside the trike's 500 lb rating, so ask us before you plan a towing load.

Addmotor's farm photograph with its own trailer hitched behind; the trailer is sold separately on Addmotor's store, and its load sits outside the trike's 500 lb.

Brakes, a parking brake and a differential

Addmotor's tables list hydraulic disc brakes, and two of its other documents describe mechanical ones. The Performance table's brakes row reads "Hydraulic Disc Brakes", and so do the FAQ and the January 29, 2026 post; the comparison graphic on the same page reads "Triple Mechanical Disc + Parking Brake", and the April 29, 2025 post lists "Mechanical dual-disc brakes".

If the brake type decides your order, email us before you buy: we will ask Addmotor which set the trike in your box carries, and send you the answer in writing.

A parking brake holds the trike while you load it. The Performance table answers "Yes" on its parking-brake row, and Addmotor's feature copy says it lets you "safely and securely immobilize your electric trike, whether you're taking a break or parking on an incline".

The close-up Addmotor's page sets beside its parking-brake copy, which promises a hold "parking on an incline".

The differential sits on the axle between the two rear wheels. Addmotor's rendering below shows that axle with both rear tires in place.

Addmotor's rendering from its "Speed Differential" panel, the two rear wheels on one axle.

The lamps run off the main pack. The table rates the headlight "48V DC, 40 Lux LED Headlight, IPX6 Waterproof", and the feature copy describes a "5-in-1 taillight with integrated turn & brake lights"; the comparison graphic lists a horn and turn signals in its "EB 2.0" smart system.

A 25 mm fork, 7-inch rear tires and a thicker axle

The front fork does the suspending, and the wide rear tires carry the rest. The table lists an "ADDSHOX 24" Oil Spring Suspension Fork with 25mm of Travel"; Addmotor's tables and posts list no rear suspension, and the two rear wheels ride on 19 × 7.0-inch tires.

The ADDSHOX fork Addmotor's table lists with 25 mm of travel, the rest of the trike grayed out in Addmotor's image.

Addmotor makes its case for the rear tires in its FAQ: the 24 × 4.0 front and 19 × 7.0 rears "significantly maximize stability and traction" and "distribute heavy cargo weight evenly". On range, the tire table shows what a fat casing costs on pavement.

The rear axle is Addmotor's other heavy-duty claim. Its feature copy describes "a rear axle reinforced to be 20% thicker for extreme durability" on a "6061 aluminum alloy frame".

Addmotor's axle image: a chain runs from the motor up to the differential, and the motor carries the 7-speed cassette.

148 or 177 lb, 32.7 inches wide: storing and moving it

Plan every lift and ramp at 177 lb. The Technical table prints "Weight 148 LBS" and the January 29, 2026 post repeats 148, while Addmotor's board answer of November 30, 2025 says "The trike itself weighs about 177 lbs with battery included"; neither figure names a build.

Measure every door, gate and shed opening on its route against 32.7 inches. That is the trike's total width in the Size & Fit table, and its 77.1-inch length needs the same check for a garage bay or a trailer bed.

The box is big, so plan the delivery. The same board answer gives the packaging as "1660*860*860mm", about 65.4 × 33.9 × 33.9 inches, and our shipping policy says a freight carrier may call to schedule the drop-off and a signature may be required.

A rack on a car's hitch is a weight question first: Let's Go Aero's guide to carrying Addmotor trikes lists the Greattan D at 177 lb, so check a carrier's rated capacity and your vehicle's hitch rating against that figure before you buy one.

The Mercer fit test

The Mercers, the same seven people set beside every machine we review, let you compare this trike's fit answers with any other review's. Every verdict below reads a figure Addmotor prints, the window, saddle heights, standover or payload, or the fit tables built from them.

Ruth, Dana and Maya sit comfortably inside; Frank and Cole should check a barefoot inseam first, and Jack most of all. At 6'1", Jack is the rider Addmotor's window admits and the top saddle setting may leave short, and the tall-rider flag speaks to him.

Has it been recalled?

No. On October 14, 2026, no recall among the 10,047 on the Consumer Product Safety Commission's full recall list, from June 8, 1973 through October 8, 2026, named Addmotor, the Greattan D, its 370D code or its SKUs EB3775D and G82.

Every field of every record was searched for six company names, among them Addmotor, Add Motor and Addmotor Tech, for 19 Addmotor model families including the Greattan, and for each model code Addmotor uses.

The code search caught two old laptop records carrying "M300", neither an e-bike: Sony's 2006 recall names the Toshiba Portege M300 among the notebooks that used its batteries, and Compaq's 2001 recall names the Armada M300 among the notebooks sold with its AC adapters.

To prove the search can find a recall, the same full-field read of the CPSC's list ran for three makers that have them: it returned 1 record for Ancheer, 79 for Specialized and 40 for Trek. The agency's recall feed, read the same morning, held nothing newer than October 8, and its product safety warning listing, 375 entries, names neither Addmotor nor the Greattan D.

Class and road rules for a 750 W, three-wheeled trike with a throttle

In Addmotor's own words the Greattan D "is generally classified as a Class 2 e-bike with a legal 20 mph top speed", and your state's wording decides whether the law agrees. The same answer on Addmotor's FAQ adds that "regulations vary locally".

The federal consumer-product definition in 15 U.S.C. § 2085(b) covers "a two- or three-wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts (1 h.p.)", and it sets the motor-only top speed, timed with a 170-pound rider on paved, level ground, at "less than 20 mph".

Left column: the words of § 2085(b); right column: Addmotor's own tables; both read October 14, 2026.

Each federal line says "less than", so a motor rated at exactly 750 W lands on the watt line instead of under it. The statute times its speed with a 170-pound rider, while Addmotor's 20 mph names no rider weight.

States write their own lines. California's Vehicle Code § 312.5(a) allows an electric bicycle "an electric motor that does not exceed 750 watts of power", a line the Greattan D's rating meets.

Screened against all 50 states and DC, Addmotor's Greattan D figures sit inside 25 e-bike definitions. On October 13, 2026, each definition was checked for its watt wording, its throttle rule, its top speed, its wheel count and its width, and Pennsylvania's for its weight limit:

Screened October 13, 2026 against the definitions in our state law atlas; the screen gives the same verdicts for October 1, and the October 14 read changed none of them.

Of the 23 outside, 19 draw the motor line at "less than" or "fewer than" 750 watts, Alabama, Florida, New York and Texas among them; Montana and Rhode Island write two wheels into their definitions; New Jersey's counts assistance only while the rider pedals and says "two-wheeled"; and Pennsylvania's weight limit sits below the trike's 148 lb.

Seven states write something besides the motor's rating into the line this trike has to meet:

Pennsylvania's line is about weight. 75 Pa.C.S. § 102 covers "A vehicle weighing not more than 100 pounds with two or three wheels more than 11 inches in diameter", and Addmotor prints 148 lb; our Pennsylvania e-bike law page sets out what the state calls a heavier machine.

Montana and Rhode Island count wheels. Montana's definition reads "two tandem wheels" and Rhode Island's "a two-wheel (2) vehicle", so a trike sits outside both whatever its motor; our Montana and Rhode Island pages give each state's rule in full.

Connecticut is the open question. Since October 1, 2026, § 14-1(31), as amended by P.A. 26-24 § 26, defines an electric bicycle as "a bicycle equipped with operable foot pedals and an electric motor of not more than seven hundred fifty watts of power", a watt line the trike meets; the chapter never says whether a three-wheeler is a bicycle. Our Connecticut page suggests asking the DMV in writing before you ride a trike there.

North Carolina rewrites its definition on December 1, 2026, and the Greattan D sits inside both texts: Session Law 2026-46 still opens its definition with "A bicycle with two or three wheels", keeps "an electric motor of no more than 750" watts, and its Class 2 motor "may propel the bicycle without pedaling but ceases to assist once the bicycle reaches a speed of 20 miles per hour".

New York's width line is one the trike meets, and its watt line is not. N.Y. Vehicle and Traffic Law § 102-c covers a bicycle "no more than thirty-six inches wide" that "has an electric motor of less than seven hundred fifty watts"; the Greattan D is 32.7 inches wide, and its rating sits at 750 W.

A trike outside a state's e-bike definition is not left unregulated: the state's vehicle code may class it as a moped or another motor vehicle, with rules of its own. Each state's answer is in our 50-state e-bike law atlas.

Farms, trails, parks and public land

Off the street, the Greattan D goes where the land's owner or manager admits it. On your own farm, ranch or acreage that is you; on a park path, a campground lane or a beach boardwalk, it is that ground's posted rule.

Addmotor sells it for this kind of work: its feature copy calls the Greattan D "ideal for farm chores, with quiet operation that won't startle livestock", and its farm photograph in the carrying section shows it hitched to Addmotor's trailer.

Addmotor's campsite photograph; on public ground, the land manager's e-bike rule decides where the trike may go.

On federal ground the definitions take in three wheels. 43 CFR 8340.0-5 defines the Bureau of Land Management's e-bike as "a two- or three-wheeled cycle with fully operable pedals and an electric motor of not more than 750 watts (1 h.p.)", and the Park Service's 36 CFR § 1.4 writes the same wheel count and the same watt line; the trike's 750 W meets both.

A BLM field office can choose to manage e-bikes like bicycles, and that relief from the off-road vehicle rules lasts only while, in the regulation's words, "the motor is not exclusively propelling the e-bike for an extended period of time".

On BLM ground, keep pedaling: long stretches on the throttle alone are what that condition rules out, and 43 CFR 8341.1 then confines an off-road vehicle to land designated "open to off-road vehicle use".

For National Forests, 87 FR 41278 records the Forest Service's 2022 directives as "managing all classes of e-bikes as motor vehicles", and on a Ranger District with a motor vehicle use map, 36 CFR 261.13 forbids riding "other than in accordance with those designations".

Each row's owner or manager has the final word for that ground.

Breaking the rules in subparts 8341 and 8343 on BLM land carries, under 43 CFR 8340.0-7, "a fine of not more than $1,000", imprisonment "for not longer than 12 months", or both. Our public-land e-bike guide collects each agency's own e-bike rules.

Green flags / Red flags

Green flags

• A 500 lb rating split 350 and 150, with a flat 29.5 × 17.3-inch rack and a board answer that says it can pull Addmotor's trailer.
• A differential and a parking brake, printed in the Performance table, for cornering loaded and for loading on a slope.
• A torque sensor and a half-twist throttle on a 750 W rear-mounted motor, with seven assist levels.
• One 960 Wh pack or two, with Addmotor's 120 miles on two packs at assist level 1 and 63 computed miles on one at 12 mph on the throttle.
• A 15.7-inch step that every surveyed rider from 5'2" to 6'4" clears, and a backrest saddle.
• $3,499, the price Addmotor's own page showed that day, with free shipping to the contiguous states.

Red flags

Every item below is about fit: the rider or the job the Greattan D does not suit, and where that rider goes next.

• Wrong if your legs are long for the post: a barefoot inseam over about 34.7 inches. The top saddle setting falls short of the 109% formula there, which at 6'0" is at least 61 of 100 riders; send us your barefoot inseam, and we will hold it against the trike and the alternatives we carry before you order.
• Wrong if someone rides with you. The rack is a cargo rack; our Greattan L review covers Addmotor's trike with a passenger seat, rated 350 lb for the rider and 150 lb for the passenger.
• Wrong if your state draws its line at "less than 750 watts" and you want the trike to count as an e-bike there. A 500 W trike sits under that line: our ONE-TRIKE 2.0 review covers Eunorau's, rated for 440 lb, with its own state table.
• Wrong if it has to live in a hallway or a closet. At 32.7 inches wide and 77.1 long it does not fold; our Citytan M-315 review covers Addmotor's folding trike from $1,099.
• Wrong if your ground calls for springs at both ends. Only the fork is sprung; our Soletri II and Herotri II review covers Addmotor's full-suspension trikes.

Buy it if / Buy something else if

Buy it if you stand 5'2" to 6'4" with a barefoot inseam up to about 34.7 inches, haul loads that fit 150 lb on a flat rack behind you, and want a torque sensor, a differential, a parking brake and about 63 miles at 12 mph on the throttle on level ground for a 180 lb rider.

It asks for a rider and cargo of 500 lb or less, a state whose wording takes in a 750 W three-wheeler with a throttle, 32.7 inches of clear width wherever it is stored, and an outlet for a charge of about ten hours, at about 18 cents a charge or roughly $2.80 a year for 1,000 miles at the July 2026 US average electricity price.

For $3,499 you get a 750 W rear-mounted motor with a differential, one 960 Wh pack, a torque sensor, a 25 mm fork, 19 × 7.0 rear tires, a parking brake and a 500 lb rating, at the price Addmotor's own page showed on October 14, 2026.

Buy something else if you carry a person, where our Greattan L review covers the passenger trike at $3,699; if a 450 lb rating covers your loads and you want a fat-tire trike for less, where our Grandtan M-340 review covers Addmotor's from $2,199; or if a trike has to fold away, where our Citytan M-315 review covers one that does.

Our Addmotor brand profile sets the Greattan D beside the other Addmotor bikes and trikes we sell, and our e-bike reviews hub lists each machine we have reviewed.

Before you buy: the checklist

Ten checks to run before you pay $3,499; the first three decide whether, and where, the trike may be ridden.

1. Look up your state in the class table and open its page in our law atlas for the full rule.
2. Ask each park, trail or campground on your list for its e-bike rule: whoever manages the land decides.
3. Measure your barefoot inseam and find it in the saddle and ceiling tables; past about 34.7 inches, read the tall-rider flag first.
4. Add up rider and cargo against 500 lb, with no more than 150 lb on the rack.
5. Measure every door, gate and shed opening on the trike's route against 32.7 inches, and its parking spot against 77.1 inches of length.
6. Plan every lift and ramp at 177 lb, the board answer's figure with the battery included.
7. Cost out your usual route in the range tables, climbs and load included, leaving 15% of the pack unused.
8. Find your steepest regular grade in the climbing table at the load you will carry.
9. Choose an indoor outlet and allow about ten hours for a full charge at the charger's rated 2.0 A.
10. Confirm the brake type with us if hydraulic or mechanical discs decide your order (the brakes section).

Buying it from us

Why buy the Greattan D from Redtail

Our listing priced the Greattan D at $3,499 with one pack on October 14, 2026, and Addmotor's page listed $3,499 that day too, beside a struck-through $4,099, the figure our listing strikes as well. Once you order, your dealings are with us.

The two-pack layout in Addmotor's studio image; that build is sold out with us today, so email us for a quote.

Changing your mind is covered by our refund policy: a request within 72 hours of delivery, with the trike unopened in its factory-sealed packaging, returns the price less a 15% restocking fee and the return freight, and canceling an order carries a 3% transaction fee. Fit, load and route questions cost nothing to ask, and they are worth most before the order.

Frequently asked questions

What is the Addmotor Greattan D cargo eTrike?

A $3,499 electric cargo trike from Addmotor: a 750 W rear-mounted motor with a differential, a torque sensor and a half-twist throttle, one 960 Wh pack or two, a 29.5 × 17.3-inch rack, 19 × 7.0-inch rear tires and a 500 lb rating, for riders 5'2" to 6'4" (what it is).

How far will the Greattan D go with the 2 batteries?

Addmotor prints 120 miles on two packs at assist level 1, and its board answer of November 13, 2025 says "approximately 130 miles". On the throttle over level pavement, the model gives a 180 lb rider about 107 miles at 12 mph and 64 at the 20 mph top, with 15% of both packs kept back (the range tables).

How far will one battery go?

About 63 miles at 12 mph on the throttle over level pavement for a 180 lb rider, computed, or about 53 with 15% kept back. Addmotor's FAQ gives one pack "around 60 to 70 miles", and the same 12 mph figure falls to about 40 miles with 500 lb aboard (range).

What is the weight of the Greattan D itself?

148 lb in the Technical table, and "about 177 lbs with battery included" in Addmotor's board answer of November 30, 2025. Neither names a build, so plan lifts, ramps and hitch carriers at 177 lb (weight).

What is the load capacity?

500 lb: 350 lb for the rider and 150 lb on the rear rack, in Addmotor's table, FAQ and board answer of December 5, 2025; one image's alt text on the same page says 550 lb, and the tables' 500 is the figure to plan on (carrying).

What are the dimensions of the rear rack?

29.5 inches long, 17.3 inches wide and 4.1 inches high, in the Size & Fit table and Addmotor's board answer of December 15, 2025 (carrying).

Is the Greattan D suitable for a trailer?

Yes, by Addmotor's board answer of December 12, 2025: "Yes, the trailer suits the Greattan D trike". Addmotor sells that trailer on its own store, our store does not list it today, and a trailer's load sits outside the trike's 500 lb rating (carrying).

What rider height is the Greattan D suitable for?

Addmotor's window is 5'2" to 6'4". The saddle tops out 37.8 inches off the ground, which meets the 109% formula for a barefoot inseam up to about 34.7 inches; at 6'0" at least 61 of 100 riders need more, so measure your inseam against the ceiling table before you order.

Is the Greattan D street legal?

It depends on your state's wording. Addmotor's FAQ calls it "generally classified as a Class 2 e-bike", and on October 13, 2026 its figures sat inside the definitions of 25 of the 51 jurisdictions screened; a trike outside a definition falls into another class with its own rules (the class table).

Are fat tires better for stability on an electric cargo trike?

Addmotor says so for this one: its FAQ credits the 24 × 4.0 front and 19 × 7.0 rear tires with maximizing "stability and traction" and spreading the cargo's weight. They cost range on pavement, which the tire table prices in miles.

Is the Greattan D easy to maintain?

Addmotor's FAQ answers yes, pointing to "hydraulic disc brakes, a rust-resistant KMC chain, and a rear differential". Its other documents name mechanical discs too, so ask us which brakes your trike carries before you plan its upkeep (brakes).

Is Addmotor a US company?

Addmotor dates its start to 2011 in El Monte, California, on its About page, and keeps its warehouse and showroom there, at 4188 Arden Drive. Our Addmotor brand profile lays out its record and every Addmotor model we carry.

Where can I buy an electric cargo trike near me?

Anywhere in the contiguous United States, from our store: freight is free there, the carrier may call to schedule the drop-off, and we file any carrier claim. Addmotor's own warehouse and showroom are in El Monte, California, on its About page.

Is the Greattan D the best cargo trike?

It is the one to pick when the job is a 150 lb load on a flat rack over soft or rough ground, with a differential, a parking brake and 7-inch rear tires. If you carry a person, need to fold it, or ride where the line is "less than 750 watts", the verdict names the reviews to read instead.

Limitations of this review

Twenty points this review leaves open:

1. We sell this trike. Give the red flags your first read; they matter as much as the green.
2. Every figure is tied to a source: specification-verified against Addmotor's published documents, a statute or regulation, our store record, a cited study, or the arithmetic printed beside it.
3. Each range row is an ideal ride: a single speed and grade, still air and no stops. Pulling away from a gate, riding into wind or crossing wet grass all cost more than any row shows.
4. The motor in the model is a Bafang curve standing in for Addmotor's, its 90 N·m torque cap included: Addmotor's documents give the motor a 750 W rating and a 90 N·m torque and no speed curve. At 82% efficiency, 2 points over Bafang's 80% floor, the 12 mph throttle ride would come to about 68 miles in place of the table's 63.
5. Light-load pedaling is the model's weakest ground. At 12 mph and slower with easy pedaling, the result hangs on the motor's losses at light load, a region between the rated and no-load points Bafang's workbook gives.
6. 750 W is the model's ceiling, so a short, steep pitch may go faster on the trike than the steady climbing speeds in the table, and Addmotor's printed 1,400 W peak is not modeled.
7. The no-load speed is fitted to Addmotor's 20 mph, so a 180 lb rider on the throttle just reaches it; if the real motor spins faster and a limiter holds it back, its draw near 20 mph would differ slightly.
8. No owner's ride to an empty pack with a stated load and speed is on record for the Greattan D in the sources read for this page: Addmotor's board, its posts, its one buyer review, Reddit's archive and four YouTube searches.
9. Every table counts the full 960 Wh as usable. Addmotor's documents do not say how much the battery management releases; when researchers at KIT put one pedelec through a standard bench range test, 75% was.
10. The tire figure is the median of ten 26 × 4.0 fat-bike tires measured on a drum, standing in for the trike's 24 × 4.0 front and 19 × 7.0 rears, whose casings Addmotor leaves unnamed; the tire table shows the spread.
11. One laboratory cell carries the cold table. Addmotor names Samsung as the cell maker without a cell model, so the central line follows McMaster University's LG HG2 measurements, with other makers' published cells in the brackets.
12. The two packs are counted as adding. Addmotor's tables do not say how the Dual-Battery build draws on its two packs, so the two-pack columns double one pack's energy.
13. The drawing is not used as a ruler. Measured at two scales, it reproduces one of six other printed dimensions within 3.5% at each, so the saddle table stops at the formula's distance; the rest is your tape measure's job.
14. Read the ceiling counts as minimums, and the floor count as unknown. The pedal's height above the ground is missing from both: adding it could only push more tall riders past the top setting, and only it could say whether the 28 surveyed riders from 5'2" to 5'4" whose 106% figure sits under the lowest setting can reach it.
15. Lean and hand load are not computed. No seat angle, bracket height or grip position is in Addmotor's documents, so those subsections give guidance, and the hand-load figure they quote was measured on road racers on their hoods, a position unlike a cargo trike's upright one.
16. Each saddle distance is a place to start. It is 109% of the median inseam at your height, and the heel check on the trike takes you the rest of the way to a knee bent 25 to 35 degrees.
17. An Army survey underlies the fit tables. Between 2010 and 2012, ANSUR II measured 6,068 US Army personnel aged 17 to 58, who are not a sample of the US public, so let your own measured inseam pick the row.
18. Addmotor's documents give the Greattan D two of several figures: weights of 148 lb in its table and post and 177 lb in its board answer; brakes hydraulic in its tables and FAQ and mechanical in its comparison graphic and April 2025 post; payloads of 500 lb in its tables and 550 lb in one image's alt text; ranges of 120 miles in its table and 130 in its board answer and two posts, the January 2026 one printing 130 as the maximum and 120 as the real-world figure. Each is printed where it matters, and we will confirm any of them with Addmotor in writing on request.
19. "UL2271" appears in Addmotor's feature copy and comparison graphic without a certificate number; ask us and we will request the pack's own certificate from Addmotor.
20. Each verdict in the class table comes from screening our law atlas's definitions as of October 13, 2026. Definitions move (North Carolina's will on December 1), Connecticut has not said whether a trike is a bicycle, and how a state treats a trike outside its definition was not read in every state.

The bottom line

At $3,499, the Greattan D puts a 750 W rear-mounted motor with a differential and one 960 Wh pack under a flat 29.5 × 17.3-inch rack and a backrest saddle, with a torque sensor, a half-twist throttle, a parking brake, a 25 mm fork and 19 × 7.0-inch rear tires, rated for 500 lb.

The model gives a 180 lb rider about 63 miles at 12 mph on the throttle over level pavement and about 40 with 500 lb aboard, and holds about 11.8 mph up an 8% grade at 180 lb.

Its owner stands 5'2" to 6'4" with a barefoot inseam up to about 34.7 inches, hauls 500 lb or less, rides where the state's wording takes in a 750 W three-wheeler with a throttle, and has 32.7 inches of clear width to store it. A full charge costs about 18 cents at the July 2026 US average price of electricity, about $2.80 a year at 1,000 miles.

Settle two questions with us before checkout: whether the top saddle setting reaches your leg, and which class your state puts the trike in. Send your height, inseam, load and state in one email, and one reply will answer both.

Image credit: every image below the cover is Addmotor's own, its size drawing, close-ups, rendering and location photographs included, cropped and resized and never retouched.

Cover: Addmotor's own studio image of the Greattan D, scaled uniformly with no pixel of the trike changed; the studio around it was generated on Playcut (playcut.ai) with Nano Banana Pro, and the type and its shading are laid on top.

Source register

What each document behind this review supports.

T1 is the record itself, read from whoever issued it: a statute, a federal regulation or notice, the maker's own product page, drawing, images, question board and posts, a federal agency's list or table, and our own store record.

T2 is a party's own publication about its product, its measurements or its own riding: the motor maker's workbook, research groups' and laboratories' published measurements, an accessory maker's guide, and owners' and readers' own words, quoted as theirs.

Expiry conditions

Re-read this page if Addmotor changes the Greattan D's price, motor, packs, range figures, top speed, weight, payload, saddle heights, standover, width, brakes, drawing or question-board answers; if the Dual-Battery build comes back in stock with us; or if the price, stock or checkout options change on our store.

Re-read it too if a state changes its e-bike definition, once North Carolina's December 1, 2026 change takes effect, if Connecticut settles whether a trike is a bicycle, or if a recall is published naming Addmotor, the Greattan D or either of its SKUs. Verified October 14, 2026.

References

The full bibliographic record for each document cited above, with the date it was retrieved.

1. Addmotor Tech, Greattan D Cargo eTrike — product page (option matrix with price, stock and SKU by battery option, feature panels, Size & Fit, Technical, Performance and Delivery tables, FAQ, comparison graphic and its buyer review, as served for the United States). Retrieved October 14, 2026. https://www.addmotor.com/products/greattan-d
2. Addmotor Tech, Greattan D size drawing (m-370d-size), on the product page. Retrieved October 14, 2026. https://www.addmotor.com/u_file/2601/photo/m-370d-size_1769564864.png
3. Addmotor Tech, Greattan D question board, Addmotor's dated answers cited here: q2353 (November 13, 2025), q2628 (November 30, 2025), q2629 (December 5, 2025), q2631 (December 12, 2025), q2635 (December 15, 2025), each on its own page. Retrieved October 14, 2026. https://www.addmotor.com/question_p458/
4. Addmotor Tech, Greattan D: Get the Most Versatile Fat Tire Electric Tricycle (blog, April 29, 2025). Retrieved October 14, 2026. https://www.addmotor.com/blog/greattan-d-most-versatile-fat-tire-electric-tricycle
5. Addmotor Tech, Addmotor Electric Trike Redefines Personal Transportation – Part 2: Expanded Models for Diverse Life (blog, September 5, 2025). Retrieved October 14, 2026. https://www.addmotor.com/blog/addmotor-electric-trike-redefines-personal-transportation-part-2-expanded-models-for-diverse-lifestyles
6. Addmotor Tech, Family & Commercial Transport — Electric Cargo Trike: Addmotor Greattan D (blog, January 29, 2026). Retrieved October 14, 2026. https://www.addmotor.com/blog/electric-cargo-trike-addmotor-greattan-d-family-commercial-transport
7. Addmotor Tech, About Us, the company's 2011 start in El Monte and its warehouse and showroom at 4188 Arden Drive. Retrieved October 14, 2026. https://www.addmotor.com/pages/about-us
8. Addmotor Tech, Addmotor trailer listing, the trailer Addmotor's board answer of December 12, 2025 links. Retrieved October 14, 2026. https://www.addmotor.com/products/addmotor-trailer
9. Addmotor Tech, 7 Tips for Electric Bike Battery Health (blog). Retrieved September 28, 2026. https://www.addmotor.com/blog/7-tips-for-electric-bike-battery-health
10. Addmotor Tech, A Complete Guide to Ebike Battery Maintenance (blog, February 26, 2025). Retrieved September 28, 2026. https://www.addmotor.com/blog/a-complete-guide-to-ebike-battery-maintenance
11. US Government Publishing Office, 15 U.S.C. § 2085 — Low-speed electric bicycles, subsection (b). Retrieved September 28, 2026. https://www.govinfo.gov/content/pkg/USCODE-2024-title15/html/USCODE-2024-title15-chap47-sec2085.htm
12. California Legislative Information, California Vehicle Code § 312.5, subdivision (a). Retrieved September 28, 2026. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH&sectionNum=312.5.
13. Pennsylvania General Assembly, 75 Pa.C.S. § 102 — Definitions, "Pedalcycle with electric assist" (the official PDF of the section; the HTML view of the same section renders its text with script). Retrieved October 13, 2026. https://www.palegis.us/statutes/consolidated/view-statute?txtType=PDF&ttl=75&div=00.&chpt=001.&sctn=002.&subsctn=000.
14. North Carolina General Assembly, Session Law 2026-46, section 19 (G.S. 20-4.01(7a), effective December 1, 2026). Retrieved September 16, 2026. https://www.ncleg.gov/EnactedLegislation/SessionLaws/HTML/2025-2026/SL2026-46.html
15. Montana Legislature, MCA § 61-8-102 — Uniform definitions, the electrically assisted bicycle. Retrieved October 14, 2026. https://mca.legmt.gov/bills/mca/title_0610/chapter_0080/part_0010/section_0020/0610-0080-0010-0020.html
16. Rhode Island General Assembly, R.I. Gen. Laws § 31-1-3 — Types of motor vehicles, the electric bicycle. Retrieved October 14, 2026. https://webserver.rilegislature.gov/Statutes/TITLE31/31-1/31-1-3.htm
17. Connecticut General Assembly, C.G.S. § 14-1 — Definitions, subdivision (31), 2026 Supplement. Retrieved October 14, 2026. https://www.cga.ct.gov/2026/sup/chap_246.htm
18. Connecticut General Assembly, Public Act 26-24, section 26, effective October 1, 2026. Retrieved October 14, 2026. https://www.cga.ct.gov/2026/ACT/PA/PDF/2026PA-00024-R00SB-00413-PA.PDF
19. New York State Senate, N.Y. Vehicle and Traffic Law § 102-c — Bicycle with electric assist. Retrieved October 14, 2026. https://www.nysenate.gov/legislation/laws/VAT/102-C
20. Bureau of Land Management, 43 CFR § 8340.0-5 — Definitions, paragraphs (a)(5) and (j) (85 FR 69223, Nov. 2, 2020). Retrieved September 28, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8340/section-8340.0-5
21. Bureau of Land Management, 43 CFR § 8341.1 — Regulations governing use. Retrieved September 28, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8341/section-8341.1
22. Bureau of Land Management, 43 CFR § 8340.0-7 — Penalties. Retrieved September 28, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8340/section-8340.0-7
23. Forest Service, US Department of Agriculture, 36 CFR § 261.13 — Motor vehicle use. Retrieved September 28, 2026. https://www.ecfr.gov/current/title-36/chapter-II/subchapter-B/part-261/subpart-A/section-261.13
24. US Forest Service, Directive Publication Notice, 87 FR 41278 (July 12, 2022), recording the final e-bike directives issued March 31, 2022. Retrieved September 28, 2026. https://www.federalregister.gov/documents/2022/07/12/2022-14777/directive-publication-notice
25. National Park Service, 36 CFR § 1.4 — What terms do I need to know?, the definition of an electric bicycle. Retrieved October 14, 2026. https://www.ecfr.gov/current/title-36/chapter-I/part-1/section-1.4
26. US Consumer Product Safety Commission, Recall data, the full list of 10,047 recalls (June 8, 1973 to October 8, 2026), every field read for Addmotor, ADDMOTOR, Add Motor, Addmotor Tech, Motan and Addrider, 19 Addmotor model families including the Greattan, the model codes, and the Greattan D's names, its 370D code and its SKUs EB3775D and G82, with controls Ancheer / Specialized / Trek; the Recalls RSS feed read the same morning, its newest recall dated October 8, 2026; and the Product safety warning listing (complete CSV, 375 entries). Retrieved October 14, 2026. https://www.saferproducts.gov/ · https://www.cpsc.gov/Newsroom/CPSC-RSS-Feed/Recalls-RSS · https://www.cpsc.gov/s3fs-public/recall-data/product_safety_warning_listing.csv
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