Addmotor U710 Review: A 90 lb Folding Trike That Leans

Folding delta trike · 750 W rear-drive motor (1,400 W peak) · torque sensor and half-twist throttle · 48 V 20 Ah Samsung pack, 960 Wh · Fixed Mode, or a Tilting Mode that leans the front frame · folds to 45.2 × 39.3 × 34.2 in · 90 lb with the battery · 340 + 100 lb payload · 20 mph · $2,399 on October 19, 2026 · verified October 19, 2026

Quick Answer — Addmotor's U-Trike U-710 is a $2,399 trike that folds to 45.2 by 39.3 by 34.2 inches, weighs 90 lb with its battery, and lets its front frame lock upright or lean into turns. A full charge carries a 180 lb rider about 69 miles in our model, riding the throttle at 12 mph on level pavement.

Settle two things before you pick a color: whether your barefoot inseam fits under a saddle that tops out 35.4 inches off the ground (fit), and whether your state's wording takes in a 750 W, 20 mph three-wheeler (class).

What this review covers

Specification · What it is · The two modes · The fold · Against the U-750 · Fit · Motor · Battery · Range · Carrying · Brakes and lights · Fork and tires · The Mercer fit test · UL · Recalls · Class · Trails and parks · Green and red flags · Verdict · Checklist · Buying it from us · FAQ · Limitations · Bottom line · References

How we verified this Addmotor U710 review

Every figure about the trike itself traces to Addmotor's own record, read on October 19, 2026: the U-710 product page with its four specification tabs, stat strip and product FAQ, its size drawing, its gallery and feature images, and the four Addmotor posts that print U-710 figures. Our store supplied the price, the two colors and the checkout links on the same day.

This is a specification-verified review: each number sits beside its source, whether Addmotor, a statute, our store, a cited study or arithmetic shown on the page, and the range and fit models print their inputs under their tables. Because the U-710 is on our shelf, the red flags are given as much room as the green ones.

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

Addmotor's U-Trike U-710 specification

One folding frame serves the whole height window; the seat post and the handlebar's 4.8-inch height range do the adjusting. There is a single column of figures on Addmotor's Size & Fit tab:

From Addmotor's Size & Fit, Technical and Performance tabs, each read as it displays when clicked on October 19, 2026; our price is from the same day. The drawing's arrows measure both saddle heights from the ground up to the saddle's top.

A trike that folds, then leans or locks

The U-710 is a $2,399 delta trike with a pivot between its front and rear frames and a fold for storage, so one machine rides rigid, rides leaning, or packs down. Addmotor's launch post of August 15, 2026 describes the build: "The chassis connects to the rear frame through a pivot joint."

The Red U-710 in Addmotor's studio image, one wheel up front and two under the rear basket.

You step over an 11.8-inch frame, sit on an adjustable saddle, pedal a seven-speed drivetrain and steer one front wheel on an 80 mm fork. The 750 W motor drives a rear wheel ("750W Rear-Drive Motor" on the Technical tab), and all three tires are 20 × 3.0 inches.

Addmotor's product FAQ opens with the comparison: the U-710 "folds for car and RV storage with 3.0-inch tires, while U-750 has 4.0-inch fat tires and a fixed frame", and the two "share the same 750W motor, dual-mode tilt system, and 440 lbs payload capacity." The comparison section sets the two side by side.

Fixed Mode or Tilting Mode: which should you ride?

Ride both, switching with one lever. Addmotor's feature copy reads "Lock the frame with one lever, upright and stable through every turn", and its August 26, 2026 buying guide adds "Flip the frame lever to Locked Mode, and the chassis stays firmly upright".

The first two rows quote Addmotor's launch post of August 15, 2026 and the product FAQ, read October 19, 2026; the third row is the FAQ's own line, "You don't need to shift your body weight — just steer".

Addmotor's photograph of the U-710 banking through a bend in Tilting Mode, the rear wheels flat on the road.

Learn the trike with the frame locked first, then try Tilting Mode in an empty lot. Addmotor's images label the lever's two positions "TURN-Tilting Mode" and "OFF-Fixed Mode".

Research on tilting trikes is thin, by the account of a 2024 field test from SWOV, the Dutch road-safety research institute. In it, 28 healthy, active cyclists aged 57 to 71 rated two tilting prototypes above a rigid trike for pulling away, walking the machine and holding speed, and their balance scores showed no difference between the tilting trikes and an ordinary two-wheeler.

Those prototypes carried their two wheels in front, a different layout from the U-710's, and the report itself calls the study small and subjective. Read it as one data point on how leaning feels to experienced riders; the findings above come from the report's own English summary.

How the U-710 folds, and what it measures folded

Folding takes the trike from 71.2 inches long to 45.2: 26 inches shorter, 9.8 inches wider, and 15% less floor. Addmotor's Size & Fit tab prints both shapes, and the floor areas below are those figures multiplied out.

Lengths, widths and heights from Addmotor's Size & Fit tab and size drawing, read October 19, 2026; the floor rows are length times width. Addmotor's fold image gives the 34.2-inch folded height "without saddle", so pull the seat post before you measure against it. Folded, the trike fills a box of about 35.2 cubic feet.

The fold swaps length for width: the front half comes back beside the rear, so the folded package is 9.8 inches wider than the trike you ride. Measure the opening you will load through, not just the floor behind it. Addmotor's own advice in its August 26, 2026 guide is to "Measure your storage space against both the unfolded footprint (71.2"L × 29.5"W) and folded dimensions".

The product FAQ says the U-710 "folds in three quick steps" and that "No tools are required for folding". The weight does not fold with it: the trike is 90 lb with the battery, and Addmotor's guide says the 90 lb "requires a little leverage to load".

Addmotor's photograph of the folded U-710 going into an SUV's cargo area.

Pull the battery before you lift. The feature copy says to "Pull the handle for quick removal", which takes the pack's weight off the frame you are lifting; Addmotor does not print the pack's own weight (Limitations item 13). The same guide says the folded frame can be tilted, rolled or guided into an SUV "without lifting the full dead weight", Addmotor's description of its own design.

U-710 or U-750: Addmotor's two tilting trikes on our shelf

The U-750 is the rigid, fat-tire version of the same idea: 77 lb heavier, 4 inches wider and $200 more on our store, with a saddle that rises 2 inches higher. Addmotor's post of August 26, 2026 compares them and says the U-710 "shares the same proven powertrain as the U750".

Addmotor's press release of September 16, 2026 puts it the other way round: the U-710 is "Built on the UTrike U-750 platform" and adds "a folding frame paired with a 3-inch tire setup".

Every quoted cell and both saddle ranges come from Addmotor's August 26, 2026 comparison; the widths from each trike's Size & Fit tab; both prices from our store on October 19, 2026, the same as Addmotor's.

Which way the choice falls depends on your leg and your garage. The U-750's saddle reaches 37.4 inches and its frame does not fold; the U-710 steps 5.5 inches lower, folds, and tops out at 35.4. Our U-750 review works through its fit, range and class on the same models used here.

Addmotor's product FAQ draws its own line: "Choose U-710 if you need portable folding storage; choose U-750 for maximum off-road traction on loose surfaces like sand and gravel."

Who the U-710 fits: 5'1" to 6'0", an 11.8-inch step and a 35.4-inch saddle

Measured against the 109% pedaling formula and the 6,068 bodies in the US Army's ANSUR II survey, the U-710's top saddle setting serves almost every rider up to 5'5", and fewer than half of riders from 5'8" up. Addmotor's window runs from 5'1" to 6'0", and its saddle tops out at 35.4 inches off the ground.

The formula sets the saddle top at 109% of your inseam above the pedal axle at the bottom of the stroke, the rule Peveler and colleagues compared with two other methods in 2005. Addmotor gives the saddle's height off the ground and not the bracket height or crank length, so each row is a target distance you confirm on the trike with a tape measure.

Find your fit in three steps:

1. Measure your inseam barefoot. Stand with your back to a wall, draw a hardcover book up snug between your legs, and measure from the floor to its top edge.
2. Find your height in the saddle table, then check the ceiling table for how many riders your height the top setting leaves short.
3. On the trike, turn one crank down in line with the seat post and measure from the saddle's top to the middle of that pedal. If the post runs out before your row's distance, email us before you ride.

Addmotor's size drawing draws the saddle twice, once at the bottom of its travel and once at the top. Why no dimension is taken from it is set out in the formula subsection.

How high does my saddle go?

Read across from your height to the distance between the saddle's top and the pedal axle. Column three works the 109% rule on that height's median inseam. Column four uses 106%, the low end of the range Ferrer-Roca and colleagues report, and column five 110.4%, the high end of the range they propose.

Each inseam span runs from the 5th to the 95th percentile of the 6,068 people measured in the US Army's ANSUR II survey, and the three distances use the median. Measured beats typical: move the saddle 1.09 inches for every inch your own inseam differs from the row's median.

Above a 32.48-inch barefoot inseam, the top setting falls short of the 109% distance, and above 33.40 inches it falls short of 106% too. Addmotor's 35.4-inch top setting is all either distance can use, because the pedal sits above the ground even at the bottom of its stroke:

Counted over the same survey's bodies at each height. Each count is a floor. Addmotor's tabs leave out how high the pedal sits off the ground, and adding that height could only raise the count.

Addmotor prints the 5'1" to 6'0" window on its tab and its drawing, and the ceiling table reads beside it: the share of riders the top setting leaves short of the formula climbs from 1 in 100 at 5'3" to 37 at 5'7", 59 at 5'8" and 99 at 6'0". If you stand 5'7" or taller, measure your inseam before you order.

Can I step through it at a stop?

Yes. Barefoot, all of the surveyed riders between 5'1" and 6'0" clear the 11.8-inch step. At 5'1", 95 of every 100 riders keep at least 15.9 inches between inseam and frame.

Each row sets that height's barefoot inseams, from the same survey, against the 11.8-inch standover printed on Addmotor's tab, its drawing and its August 26 and September 17, 2026 posts; the middle column is the median leg.

Addmotor's FAQ puts the step at "an 11.8-inch standover height, making mounting and dismounting easy for seniors and all riders", and says "No high leg lifts are required."

Will I lean forward to reach the bars?

The lean is not computed, because Addmotor publishes no grip position measured from the saddle. The Size & Fit tab gives an 18.1-inch reach and a bar 38.1 to 42.9 inches high, with no seat angle or bracket height, and the drawing's arrows disagree on scale (the formula subsection).

At its lowest, the 38.1-inch bar on the Size & Fit tab still sits 2.7 inches above the 35.4-inch top saddle setting, so the grips ride above the saddle at every combination. Set the saddle to your row, then judge the reach on a lap.

How much weight goes through my hands?

Hand load is not computed either: it follows from the lean, and the lean needs a grip position Addmotor does not publish. As a reference point, Carahalios's 2015 laboratory study found 15% of body weight on the bars when ten road racers rode on their brake hoods, a stretched-out posture that the U-710's upright bar does not call for.

Ride with a slight bend at the elbow and your back upright. Numb palms are a cue for padded gloves, which lowered palm pressure by 10 to 28% in the 36 riders Slane and colleagues measured.

How do I set the saddle at home?

Find the height with your heel: crank the pedal to the bottom, rest your heel on it, and raise the saddle until that leg is fully straight. Back on the ball of your foot, the knee keeps a slight bend; in Peveler and colleagues' 2005 comparison, the heel method put 70% of 19 trained cyclists inside the 25 to 35 degree knee bend that the cycling literature recommends against injury.

After every adjustment, close the seat-post clamp firmly and take a short ride before you change it again. If the post reaches its limit while your knee still bends with your heel on the pedal, stop there and read the tall-rider flag: your leg wants more saddle than the U-710 gives.

The fit arithmetic, step by step

One rule builds the saddle table: 1.09 times your inseam, from the pedal axle at the bottom of the stroke to the top of the saddle. Take a 5'8" rider with the median inseam for that height, 32.64 inches to two decimals: the rule gives 35.6 inches, and LeMond's 88.3% of inseam, measured from the crank axle, gives 28.8 inches for that leg.

Because one rule starts at the pedal and the other at the crank axle, the two figures could be compared only through a crank length, and Addmotor prints none; read each against its own rule. The ceiling table avoids both reference points by dividing the 35.4-inch top setting by 1.09, which gives 32.48 inches of inseam, and by 1.06, which gives 33.40.

We take no measurement off Addmotor's drawing: its dimension arrows are not drawn to a common scale. Whichever arrow sets the scale, no more than two of the others land within 3.5%:

How far each arrow, read tip to tip and divided by its column's scale, lands from the figure printed beside it; a dash marks the arrow that sets the scale. The handlebar arrow is left out because its label is a range over one drawn bar, and the width arrow because a side view cannot show a width. By arrow, the drawing works out at 13.8 to 18.5 pixels to the inch.

One 750 W rear-drive motor with a torque sensor

A single 750 W motor drives the rear, with a 1,400 W peak, a 25 A controller and seven assist levels. The Technical tab lists a "750W Rear-Drive Motor, Peak 1400W" with an "Addmotor 25A Controller", and the Performance tab a "Torque Sensor" with "7 Level Pedal Assist".

The assist follows how hard you push, and the throttle moves you with your feet still. Addmotor's feature copy says the sensor "Reads your pedaling force and matches assistance intelligently", and the tab lists a "Variable Speed Control - 1/2 Twist Throttle" beside the "Shimano 7-Speed" drivetrain and an "Addmotor 5-Inch LCD Display".

Addmotor prints no torque figure for the U-710; its August 26, 2026 post says the trike "shares the same proven powertrain as the U750". The top speed is "Up to 20 MPH", and the class section covers how each state reads a 750 W, 20 mph three-wheeler.

A 960 Wh Samsung pack

Forty-eight volts times 20 amp-hours puts 960 watt-hours in the pack. The Technical tab lists a "48V*20 Ah Samsung Battery", and Addmotor's launch post calls it a "48V 20Ah Samsung 21700 Cell Battery Pack". The feature copy adds "Pull the handle for quick removal and easy indoor charging".

Expect about 10 hours to refill an empty pack on the included 2 A charger: 20 amp-hours delivered at 2 amps, with charging losses still to add. Addmotor's September 17, 2026 post puts the charger's draw at "roughly 100W–120W", low enough, by Addmotor's account, for a campground pedestal or a portable power station.

A full charge costs about 18 cents. That is 960 Wh at 18.31 cents per kWh, the US average residential price for July 2026 in the Energy Information Administration's Table 5.6.A, before the charger's own losses; ride 1,000 miles a year at 12 mph on the throttle and the pack takes about 13.8 kWh, about $2.53 a year.

Two Addmotor posts set out how to look after the pack:

• the battery-health post says to recharge "when it has a 10%-15% charge left";
• the maintenance guide says to "keep your battery charge between 20% and 80% for the best lifespan";
• the same guide asks you to charge "at room temperature (between 10 and 25 degrees Celsius)", which is 50 to 77 °F.

Range: how far a charge takes the U-710

On a full pack, on the throttle over level pavement, a 180 lb rider covers about 79 miles at 10 mph, 69 at 12 and 40 at the 20 mph top speed; with the full 440 lb aboard, the 12 mph figure drops to about 46.

Easy pedaling at 75 W stretches the 12 mph ride to about 143 miles, and holding 10 mph up a 6% grade on the throttle cuts a charge to about 16 miles.

Find your own U-710 day in three steps:

1. Start with the speed and pedaling tables: your pace picks the row, your effort on the pedals picks the column.
2. Price the climbing: at 10 mph on the throttle, every 1,000 feet of a 4 to 8% grade takes 144 to 167 Wh (the hills table).
3. Adjust for what you carry and the day's temperature, and 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-bike tires and a cycling-power model validated on an open road; the formula subsection takes one ride from the tires back to the cells.

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

Riding the throttle faster costs range at every step. Drag from the air grows with speed squared: the pack gives up 23.8 Wh for a mile at 20 mph and 12.2 Wh for a mile at 10.

Conditions: 180 lb aboard, throttle alone, level pavement, 77 °F air. In the right-hand column 15% of the pack is held back, matching the top of Addmotor's advice to recharge at "10%-15%".

Pedaling stretches every row. The model counts 75 W as easy pedaling and 150 W as steady; with the motor idle, those efforts alone would carry a 180 lb rider on this 90 lb trike at about 8.8 and 12.9 mph on level ground, a guide to which column you can sustain.

Every cell spends one full pack, 180 lb aboard, on level pavement; a "legs alone" cell is a pace your 150 W can hold with the motor contributing nothing. Beyond 100 miles a cell rests mostly on your legs and the motor's light-load losses, the part of the model checked least (Limitations item 5).

Pick a pace, then decide how hard you will pedal; the assist level only divides the work between you and the motor.

Does shifting gears save battery?

Only through the work your legs add. Your chain and the motor drive the trike by separate paths, so the only way to spend less from the pack at a given speed and grade is to push harder yourself:

Pack watt-hours spent per mile with 180 lb aboard in 77 °F air. On the U-710 the model's motor holds 12 mph up 8% on its own, so every cell carries a figure.

Choose whatever gear lets you spin at an easy cadence, since only a gear you can turn lets your legs relieve the pack; at 12 mph on the flat, a steady 150 W from you leaves the motor idle.

What does a climb cost the pack?

Climbing 1,000 feet at 10 mph on the throttle takes 144 to 167 Wh more than the same miles on the flat, across 4 to 8% grades. Raising 270 lb, the 180 lb rider plus the 90 lb trike, through 1,000 feet takes 102 Wh at the wheels; the motor's and the pack's heat take the rest.

Every row: 10 mph, 180 lb aboard. The descent puts nothing back into the pack here, so each figure counts the climb only.

Uphill, the motor's pull sets your speed, and the pack sets your miles after that. On every grade there is a top steady pace the motor can sustain, and loading Addmotor's full 440 lb brings it down:

Top steady speed the model's motor sustains on each grade, with 180 lb or with Addmotor's 440 lb maximum aboard and torque held to 90 N·m. Steady climbing with no run-up; the right-hand column adds 75 W of easy pedaling.

Even with 440 lb aboard, the model's motor holds about 6.4 mph up a 10% street on its own, and easy pedaling lifts that to about 7.0.

Price a hilly day as its level miles plus its climbs. Twenty level miles at 12 mph on the throttle use about 277 Wh, and 1,000 feet of climbing at 6% adds about 155 Wh, about 431 Wh in all, or 53% of the 816 Wh in 85% of the pack.

Does rider weight affect the U-710's range?

Load costs range on the flat and costs it faster uphill. Load adds to the tires' drag and to the slope's pull while the air's drag stays the same, so the steeper the road, the wider the gap between a heavy load and a light one.

The left column is you plus your cargo, and the model puts the trike's own 90 lb on top; throttle alone in every cell. Two rows mark Addmotor's limits: 340 lb for the rider alone, 440 lb for the full payload. Where the 8% column reads "past the model's motor", the motor by itself cannot keep 10 mph on that grade, and the climbing table shows the speed it can keep.

Load the full 440 lb in place of 180 lb and the 12 mph ride shrinks from about 69 miles to 46; at 15 mph it drops from 57 to 40. Of Addmotor's "340+100 LBS", the 340 is the rider's share, so your body weight is measured against it, and the 100 is the rack's.

How much range does cold weather take away?

About a fifth at freezing. Take the 12 mph throttle ride: 69 miles at 77 °F, about 55 at 32 °F, about 50 at 14 °F.

180 lb aboard on level ground, with the pack assumed to sit at the air's temperature. Middle figures interpolate between the energies McMaster University measured from an LG HG2 cell discharged at 0.5C at 77, 50, 32 and 14 °F; the brackets come from Samsung's cell data sheets and Casado and colleagues' 2025 measurements.

The cold acts on three things together. At 32 °F the cells give back about 89% of the energy they hold at 77 °F (80 to 93% depending on the source), and the air is about 9% denser, by the gas law of the U.S. Standard Atmosphere.

The third is the rubber. For each °F under 77 °F the model raises rolling resistance by 0.5% (0.9% per °C), a slope that falls between Rothhämel's fit for a 42 mm tire and Bicycle Rolling Resistance's road-tire average; below 41 °F it adds no more.

In winter, charge the pack indoors. Addmotor's maintenance guide asks for charging between 50 and 77 °F, and the U-710's pack comes out with its handle.

Do the tires or the riding position change the range?

On level ground, the tires move the range more than the rider's drag area does. Addmotor names the U-710's tires by size, "20" X 3.0"" on its Size & Fit tab, with no casing or model, so the model takes the median of the ten fat-bike tires Bicycle Rolling Resistance measured on its drum and brackets it with the lowest and highest of the ten.

Each figure runs the pack to empty with 180 lb aboard on level ground. Those ten are 26 × 4.0 fat-bike tires, and the U-710 runs 20 × 3.0, a size the drum test did not include (Limitations item 10).

Pump to the pressure on the sidewall. For the air, the model takes 0.640 m², the drag area Tengattini and Bigazzi measured across 37 upright cruiser riders. Their figure for 90 mountain-bike riders, 0.603 m², would lift the 12 mph ride by two miles, from 69 to 71.

Addmotor's 85 miles on PAS1, as a steady ride

Addmotor's figure is 85 miles on pedal-assist level 1, and the model reaches it on the throttle alone at about 9 mph, or faster with your legs helping. The Technical tab says "85 Miles (PAS1)", and the product FAQ says the U-710 "delivers up to 85 miles in PAS 1 mode".

Read each cell as a speed: held steady on level ground with 180 lb aboard, it drains the full 960 Wh in 85 miles in the model.

Read that way, Addmotor's 85 miles is about 9 mph on the throttle, about 15 mph with easy pedaling, or about 18 mph with steady pedaling; PAS1 is a pedal-assist level, so the two pedaling readings are the closer match.

Plan on 85% of your row. Addmotor advises recharging "when it has a 10%-15% charge left"; hold back the 15% and the 69 throttle miles at 12 mph on the flat with 180 lb aboard become about 59 you can count on.

For a longer-lived pack, use only the middle 60%. Addmotor's maintenance guide puts the charge "between 20% and 80% for the best lifespan", a band of 576 Wh:

Charge kept between 20% and 80%; 180 lb aboard on level ground.

The formula behind the range tables

Holding a speed takes a constant supply of power at the wheels. For steady riding in still air, the model Martin and colleagues validated on an open road in 1998 gives that power as:

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

P is the power at the wheels and v the road speed; m is the mass of trike, rider and load, g gravity and θ the slope's angle; Crr is the tires' rolling resistance, ρ the air's density and CdA the rider's drag area. Tires and slope live in the first term and the air in the second; three steps then take the answer from the wheels back to the pack:

1. Your pedaling arrives at the wheels through a chain Martin and colleagues measured at 97.7% efficiency; the motor makes up everything else the ride needs.
2. The motor follows a curve Bafang publishes for a comparable unit, the RM G0H0: per the 2021 OEM workbook, 426 rpm at rated load and 510 rpm unloaded on 48 V, at "≥ 80" percent efficiency. Keeping 48 V and the U-710's 750 W, the model sets the unloaded speed so that a 180 lb rider on the throttle on level ground just makes Addmotor's 20 mph, which puts it at 21.7 mph.
3. The pack loses a share of its energy to heat during discharge; the model uses the loss Arango, Lopez and Ceren measured on a 48 V pack.

Range in miles = 960 Wh × usable fraction of the pack's energy at the day's temperature ÷ watt-hours per mile. The watt-hours per mile are the cells' output power divided by speed in mph.

Worked through for one ride, tires to cells: 12 mph on the throttle over level pavement, 180 lb aboard. Rider and trike weigh 122.5 kg together, and 12 mph needs 126.4 W at the wheels: 67.9 W to rolling resistance and 58.5 W to the air.

At 12 mph each 22-inch rear tire spins at 184 rpm. The model's motor, fitted to Bafang's published figures, has a torque constant of 1.38 N·m per amp, a 0.405 Ω winding and a 0.83 A no-load current; this ride draws 6.6 N·m from it on 5.6 A at 79% efficiency, below its rated 80% because the load is light.

Add the pack's own losses and the cells put out 165.9 W, or 13.83 Wh for each mile at 12 mph. Dividing 960 by 13.83 gives about 69.4 miles; with the 15% reserve held back, 59.0.

Before it produced a single table, the model had to match two published results:

Check one is Appendix I of Martin and colleagues' paper (8.36 m/s, a 90 kg system, a 0.3% grade); check two is the RM G0H0's rated point in Bafang's workbook. Give the motor 82% efficiency, 2 points over Bafang's floor, and the 12 mph throttle ride runs 76 miles where the table has 69 (Limitations item 4).

No owner's ride to an empty U-710 pack is on record (Limitations item 8), so the tables rest on those two checks.

Carrying: 340 lb on the saddle, 100 on the rack

Of the 440 lb payload, the Technical tab's "340+100 LBS" gives 340 to the rider and 100 to cargo. The product FAQ spells it out as "440 lbs total payload — 340 lbs rider capacity plus 100 lbs rear cargo capacity", and Addmotor's August 15, 2026 table lists the "Cargo Basket" at "100 LBS Capacity".

The rack measures 16.5 by 12.6 by 9.4 inches, on the Size & Fit tab, and the photographs show a wire basket on it. The FAQ adds that "You can also add a trailer for even more hauling flexibility"; write to us before you buy one, and we will confirm which hitch fits this frame.

Each load's cost in miles is in the weight table, where the 340 lb row marks the heaviest rider Addmotor's split allows.

Brakes, lights and the parking brake

A mechanical disc on every wheel, plus a parking brake. The Performance tab lists "Mechanical Disc Brakes On Each Wheel" and "180mm Front / 2*180mm Rear Rotors on 3 Wheels", and Addmotor's feature copy describes the parking brake: "Engage with one button to lock your trike securely on inclines."

The brake lever with its parking-brake button, in Addmotor's close-up.

Engage the parking brake before you step off or load the rack. It holds the trike in place while groceries go into the basket.

Three calipers and three rotors, one per wheel, in Addmotor's illustration on the U-710 page.

The main pack powers both lights, and the taillight doubles as a turn signal. The tab gives the taillight as "Powered By Main Battery And Controlled By Display with Brake Light Function", and the feature copy promises a "Powerful headlight" and a "5-in-1 taillight with turn signals".

The headlight and the rear lamp with its amber turn signals, in Addmotor's close-ups.

Addmotor's night photograph of the U-710 with both lamps lit.

An 80 mm fork on three 20 × 3.0 tires

The suspension is an 80 mm front fork, and the three tires are 3 inches wide. The Performance tab lists an "Oil Spring Fork with 80mm of Travel", and the feature copy says it "absorbs road bumps effectively".

The tires are 20 × 3.0 on all three wheels, which Addmotor's August 26, 2026 comparison calls "Agile Street Tires". Its September 17, 2026 post says a 3.0-inch tire "handles gravel, grass, packed dirt, and pavement" and "is not designed for deep sand or loose mud".

Addmotor's photograph of the U-710 on a packed farm road, the surface its own post names for a 3.0-inch tire.

For sand and snow, Addmotor's August 26, 2026 buying guide points to the U-750's 4.0-inch tires instead, and our U-750 review prices that trike's wider tread in miles.

The Mercer fit test

The Mercers are seven fixed rider profiles, aged 12 to 63, so one machine's fit answers can be set beside another's. For the U-710, each verdict rests on Addmotor's published height window, saddle heights, standover or payload, or on the fit tables built from those figures.

The U-710 suits Ruth and serves Frank poorly, though both stand inside Addmotor's window. At 5'5", 93 of 100 surveyed riders get the formula's distance from the top setting; at 5'10", 92 of 100 want more saddle than 35.4 inches gives, and the U-750, whose saddle reaches 37.4, is the tilting trike to compare at that height.

Is it UL certified?

Addmotor calls the pack UL certified, and its buying guide names the standard as UL 2271. The battery feature on the U-710 page reads "A UL certified electric trike battery you can trust", and Addmotor's August 26, 2026 guide describes "a high-capacity 48V 20Ah Samsung battery (UL 2271 certified)".

Neither the U-710 page nor the buying guide prints a certificate number. If your building, your insurer or your city asks for the certificate itself, email us and we will request it from Addmotor in writing before you order.

Has it been recalled?

No. On October 19, 2026, none of the 10,053 recalls on the Consumer Product Safety Commission's full recall list, June 8, 1973 to October 15, 2026, named Addmotor, the U-Trike, its U-710 code or its SKUs EB7172 and EB7174.

Each record was searched in every field for six brand spellings (Addmotor, ADDMOTOR, Add Motor, Addmotor Tech, Motan and Addrider), for 19 Addmotor model families including the U-Trike, and for every model code Addmotor uses. Only "M300" turned up, in two laptop recalls: Sony's 2006 recall names the Toshiba Portege M300 as a notebook its batteries shipped in, and Compaq's 2001 recall names the Armada M300 as one sold with its adapters.

As a control, the identical search of the CPSC's recall list for three makers known to have recalls returned 1 record for Ancheer, 79 for Specialized and 40 for Trek. Warnings sit in a separate file, the product safety warning listing: Addmotor and the U-710 appear in none of its 375 entries, while the same read did find both warnings filed against a brand that has two.

Class and road rules for a 750 W, 20 mph folding three-wheeler

At 750 W the U-710 sits on the federal watt line, which leaves its class to your state's own wording. The trike's Addmotor page lists a 750 W motor, a throttle and a 20 mph top speed; the federal definition puts its lines at 750 watts and 20 mph.

The federal text, 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 caps its speed on motor power alone, with a 170-pound rider on paved level ground, at "less than 20 mph".

Federal wording on the left from § 2085(b), Addmotor's on the right from its U-710 page, both read October 19, 2026.

Both federal lines are written "less than", and the U-710's 750 W rating lands on the watt line itself. Its speed test uses motor power alone and a 170-pound rider, while Addmotor's "Up to 20 MPH" comes with no rider weight attached.

California draws its line to include the cap. Under its Vehicle Code § 312.5(a), read October 19, 2026, an electric bicycle may have "an electric motor that does not exceed 750 watts of power", and § 231 lets a bicycle have "one or more wheels" before adding "An electric bicycle is a bicycle."

In 26 of the 51 jurisdictions, the state's e-bike definition takes in the U-710's figures. Each was screened on October 19, 2026 for how it words the watt line, what it says about throttles, its top speed and its wheel count, with Pennsylvania's weight limit added:

Screening date October 19, 2026, using the definitions recorded in our state law atlas. "Open" marks a definition whose words leave a three-wheeler's status unsettled.

Of the 22 outside, nineteen set the motor limit at "less than" or "fewer than" 750 watts, Alabama among them; Montana and Rhode Island name two wheels; and New Jersey names two wheels and allows assistance only while you pedal.

Pennsylvania turns on weight, and the U-710's 90 lb sits under its line. 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 90 lb with the battery on 20-inch wheels; the 167 lb U-750 sits over the same line.

On October 1, 2026 Public Act 26-24 § 26 moved Connecticut's motor limit to "not more than seven hundred fifty watts", but § 14-1 still defines no "bicycle", so the wheel count stays unsettled; write to us and we will confirm how Connecticut treats a three-wheeler.

On December 1, 2026 North Carolina divides its definition into three classes, and the U-710's figures sit inside the old wording and the new: Session Law 2026-46 keeps a bicycle "with two or three wheels" and "an electric motor of no more than 750" watts.

A trike outside a state's e-bike definition still falls under that state's road code, as a moped or another class with its own rules. Every state's answer is in our 50-state e-bike law atlas, and our California e-bike law page covers one state in full.

Trails, parks and public land

Away from public roads, whoever manages the land decides whether the U-710 may go there. A park path, a boardwalk or a campground loop takes it only where that ground's own rule takes e-bikes, which matters for a trike built to ride out of an RV bay.

Federal land comes under two different systems: the Bureau of Land Management has an e-bike definition of its own, while the Forest Service settles e-bike access one district at a time. BLM's, in 43 CFR 8340.0-5, is "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 U-710's motor falls within it.

Where a field office lets e-bikes ride as bicycles, the exemption from the off-road vehicle rules holds only while, as the regulation puts it, "the motor is not exclusively propelling the e-bike for an extended period of time".

Pedal whenever you ride BLM land, because long throttle-only stretches are the very thing that condition excludes. Lose the exception and the trike counts as an off-road vehicle, which 43 CFR 8341.1 confines to land designated "open to off-road vehicle use".

National Forests follow the Forest Service directives dated March 31, 2022, which the notice at 87 FR 41278 sums up as "managing all classes of e-bikes as motor vehicles". Once a Ranger District has published a motor vehicle use map, riding "other than in accordance with those designations" breaks 36 CFR 261.13.

The manager in the middle column decides, in the document named on the right.

The penalty for breaking the off-road vehicle rules of subparts 8341 and 8343, set by 43 CFR 8340.0-7, is "a fine of not more than $1,000", imprisonment "for not longer than 12 months", or both. For the rules agency by agency, read our public-land e-bike guide.

Green flags / Red flags

Green flags

• A fold to 45.2 × 39.3 × 34.2 inches, three steps and no tools in Addmotor's words, on a trike that also leans.
• Two modes on one lever: a rigid trike locked, or a front frame that leans into turns.
• 90 lb with the battery, 77 lb under the U-750, and the pack lifts out by its handle.
• An 11.8-inch step that every surveyed rider from 5'1" to 6'0" clears barefoot.
• A torque sensor with seven assist levels and a half-twist throttle, on a 750 W motor with a 1,400 W peak.
• A disc on every wheel and a parking brake, with 180 mm rotors and a rear lamp that signals turns.
• A 960 Wh Samsung pack that carries a 180 lb rider about 69 miles at 12 mph on the throttle on level pavement, for about 18 cents a charge at the July 2026 US average power price.
• $2,399, the price Addmotor charged that day, with free shipping in the lower 48.

Red flags

Every item here concerns fit: who the U-710 is wrong for, and which page to read instead.

• Wrong if your barefoot inseam runs past about 32.5 inches. The top saddle setting falls short of the 109% formula there; the Triketan M-330F also folds and takes its saddle to 38 inches, and the U-750 keeps the lean with a saddle that reaches 37.4.
• Wrong if one person must lift it alone and 90 lb is too much. Pull the battery first and plan a ramp or a second pair of hands, or email us your vehicle and the weight you can lift, and we will check the trikes we carry against both.
• Wrong if you ride deep sand or snow. Addmotor points loose-surface riders to the U-750's 4.0-inch tires, which our U-750 review covers.
• Wrong if you want a basket up front as well as behind. The U-710 carries one rear rack; the U-750 has front and rear racks.
• Wrong if you weigh more than 340 lb. Addmotor's tab sets the rider at 340 lb; send us your weight and load, and we will set them against the trikes we carry.
• Wrong if you never want to think about the lean. Lock it and leave it, or email us for a conventional folding trike; the Citytan M-315 folds, from $1,099.

Buy it if / Buy something else if

Buy it if you stand 5'1" to 6'0" with a barefoot inseam up to about 32.5 inches, need a trike that folds to 45.2 inches for a car, an RV bay or a closet, and want it to lean when you choose, with a disc on each wheel, a parking brake and about 69 miles at 12 mph on the throttle on level ground for a 180 lb rider.

It asks for a rider at 340 lb or less with up to 100 lb on the rack, a state whose words take in a 750 W, 20 mph three-wheeler, someone able to load a 90 lb folded frame, an open lot for the first laps in Tilting Mode, and an indoor outlet for a charge of about 10 hours from empty.

For $2,399 you get a 750 W rear-drive motor with a 1,400 W peak and a 960 Wh pack, a torque sensor, a pivot frame with a lock, a fold, an 80 mm fork, three discs, a parking brake and a rear rack, at the price Addmotor's own page charged on October 19, 2026.

Buy something else if your leg wants more than a 35.4-inch saddle, where the Triketan M-330F folds with a saddle to 38 inches; if you need fat tires or two baskets more than a fold, where the U-750 is the rigid choice; or if a folding trike under $1,700 will do, where the Citytri E-310 starts at $1,599.

For the U-710 beside Addmotor's other trikes and bikes, read our Addmotor brand profile; the e-bike reviews hub lists our reviews of other machines.

Before you buy: the checklist

Run these ten checks before you pay the $2,399; the first three settle whether you may ride it, and where.

1. Start with your state's row in the class table, then open its own page in our law atlas for everything else it requires.
2. Check the rule at every park, campground and trail you plan to use, because each land manager makes its own call.
3. Measure your inseam barefoot and hold it against the saddle and ceiling tables; if it runs past about 32.5 inches, start with the tall-rider flag.
4. Measure the opening you will load through: the folded trike is 45.2 inches long, 39.3 wide and 34.2 high with the saddle off.
5. Decide who lifts 90 lb, or plan a ramp, and pull the battery first.
6. Step on a scale, then weigh what you carry: the rider may weigh up to 340 lb and the rack may hold up to 100.
7. Find your usual ride in the range tables, price in its climbs, and hold 15% of the pack back.
8. Find the steepest street you ride often in the climbing table, at your own load.
9. Find an empty lot for your first laps in Tilting Mode.
10. Choose an indoor place to charge that stays between 50 and 77 °F, and budget about 10 hours for an empty pack.

Buying it from us

Why buy the U-710 from Redtail

Our listing priced the U-710 at $2,399 in Red and Blue on October 19, 2026. Addmotor's own page showed the same $2,399 that day with $2,699 struck through, and our listing strikes the same $2,699. From the order onward, your contact is us.

Read from our terms of service, contact page, shipping policy, refund policy, Addmotor's warranty page and our checkout on October 19, 2026.

Both colors have their own checkout link.

Each link opens checkout at our October 19, 2026 price; Addmotor's page listed both colors in stock that morning.

Blue, in Addmotor's studio image; Red is the other color on the same frame.

Should you change your mind, our refund policy asks for the request within 72 hours of delivery with the trike still sealed in its factory packaging, and refunds the price minus a 15% restocking fee and return shipping; a canceled order carries a 3% transaction fee. Send us your fit, load and route questions before you buy, so the answers come first.

Frequently asked questions

What's the difference between the U-710 and the U-750?

The U-710 folds, weighs 90 lb and runs 20 × 3.0 tires on a frame 29.5 inches wide; the U-750 is rigid, weighs 167 lb, runs 4.0-inch tires and carries two racks and a backrest. Addmotor says both "share the same 750W motor, dual-mode tilt system, and 440 lbs payload capacity". On our store the U-710 is $200 less (the comparison).

Will the U-710 fit in my car trunk or RV storage?

Measure first: folded, it is 45.2 inches long, 39.3 wide and 34.2 high, the height taken with the saddle off, and 90 lb with the battery. Addmotor's FAQ says it "folds in three quick steps" with "No tools are required", and its own guide tells buyers to check both the folded size and the 71.2 by 29.5 inch riding footprint against the space (the fold).

How far can the U-710 go on one charge?

Addmotor says "85 Miles (PAS1)". On the throttle over level pavement, our model gives a 180 lb rider about 69 miles at 12 mph and 40 at the 20 mph top, and about 46 at 12 mph with the full 440 lb aboard; each 1,000 feet climbed at 10 mph takes 144 to 167 Wh (the range tables).

Is the U-710 suitable for seniors or riders with limited mobility?

Fit decides more than age. The 11.8-inch step clears every surveyed rider from 5'1" to 6'0", the frame locks upright in Fixed Mode, and the saddle tops out at 35.4 inches off the ground, which suits shorter legs best. The Mercers' 61-year-old fits well; their 63-year-old, at 5'10", should measure an inseam first (the Mercer fit test).

What is a tilting electric trike, and how does Tilting Mode work?

A tilting trike lets its front frame and rider bank into a turn as a bicycle does while the rear wheels stay flat. On the U-710 a lever chooses: locked, "the frame remains rigidly upright"; released, "the body leans into the corner", in Addmotor's words, and its FAQ says "just steer" (the two modes).

What is the cargo capacity of the U-710?

Addmotor's tab says "340+100 LBS": 340 lb for the rider and 100 lb on the 16.5 by 12.6 inch rear rack, 440 lb in all. With the full 440 lb aboard, the 12 mph throttle ride on level pavement computes to about 46 miles (carrying, the weight table).

How do you transport an electric trike in a car?

Fold it if it folds, pull the battery, and load it through an opening you have measured. The U-710 folds to 45.2 by 39.3 by 34.2 inches with its saddle off and weighs 90 lb with the battery, so plan a second person or a ramp for the lift. Addmotor's buying guide says the folded frame can be tilted or rolled into an SUV "without lifting the full dead weight" (the fold).

Is a folding trike worth it?

It is when storage or transport is the reason a trike would otherwise stay home. The U-710's fold cuts its length from 71.2 to 45.2 inches and its floor area by 15%, but it adds 9.8 inches of width and does not reduce the 90 lb, so weigh the lift against the space you gain (the fold).

How much does the U-710 weigh?

90 lb with the battery, on Addmotor's Technical tab and in its posts of August 15 and 26, 2026; the U-750 weighs 167 lb. The battery comes out by its handle, and Addmotor does not print the pack's own weight (the fold).

How tall do you need to be for the U-710, and how high does the saddle go?

Addmotor's window is 5'1" to 6'0", and the saddle runs 27.5 to 35.4 inches off the ground. A 5'8" rider with that height's median inseam, 32.6 inches, needs the saddle top 35.6 inches from the pedal by the 109% formula, and a barefoot inseam past about 32.5 inches asks for more than the post gives (the saddle tables).

Do you need a license for the U-710, and is it street legal?

Your state's wording decides. On October 19, 2026, the U-710's published figures sat inside the e-bike definitions of 26 jurisdictions, Pennsylvania's 100-pound limit among them, and outside 22 (the class table). Write to us with your state and we will answer in its own statutory words.

Is the Addmotor U-Trike U-710 worth it?

If you fit the window with an inseam up to about 32.5 inches and need a trike that folds, the case is $2,399, Addmotor's own price that day, for a 750 W torque-sensor trike that folds to 45.2 inches, leans when you choose, and carries a 180 lb rider about 69 miles at 12 mph on the throttle on level ground (the verdict).

Limitations of this review

Twenty points this review leaves open:

1. This trike is one we sell. Give the red flags the same weight as the green ones, and read them first.
2. The whole page is specification-verified: each figure goes back to Addmotor's published documents, a statute, our store record, a study cited in the range or fit sections, or arithmetic set out on the page.
3. No range row includes a stop. Each holds one speed on one grade in still air. Real days add costs the rows leave out, such as starts from a standstill, headwinds and stretches of grass.
4. The model's motor is a stand-in: the published curve of a Bafang unit. Addmotor gives the U-710's motor rating and peak but no torque or speeds; were the motor 82% efficient, 2 points above Bafang's 80% floor, the 12 mph throttle ride would reach 76 miles where the table shows 69.
5. The model is least sure of itself when your legs do most of the work. At 12 mph and below in the easy-pedaling columns, the result hangs on the motor's losses at light load, which lie between the rated and no-load points published in Bafang's workbook.
6. The model caps the motor at its rated 750 W and at 90 N·m. The 1,400 W peak is not used, so on a short, steep pitch the trike may climb faster than the climbing table's steady paces; the 90 N·m is the comparable motor's published maximum, because Addmotor prints no torque for the U-710.
7. The motor's unloaded speed is derived from Addmotor's 20 mph: the model sets it so a 180 lb rider on the throttle only just gets there. A real motor that spins faster behind a limiter would draw slightly differently near 20 mph.
8. No owner's ride to an empty pack is on record for the U-710: the three searches for owner reports on October 19, 2026 found none, and the one video naming the trike recites Addmotor's specifications without a ride. On Reddit, a public archive of its posts answered 18 of 30 searches across six forums for the model's name, the series name and three folding-trike terms; none of the 60 posts it returned names the U-710, and the other 12 searches could not be read there or through Reddit's own search. Addmotor's question board for the U-710 held no questions that day. What the tables lean on instead is the pair of published checks in the formula section.
9. Every table assumes you can draw the whole 960 Wh. How much of the pack the battery management actually releases is not stated in Addmotor's documents; in one pedelec that researchers at KIT put through a standard bench range test, 75% of it was used.
10. Rolling resistance comes from the median of ten fat-bike tires on a drum, all 26 × 4.0 where the U-710 runs 20 × 3.0 of a casing Addmotor does not name; the tire table shows how much that choice moves the answer.
11. One laboratory cell anchors the cold table. Addmotor names the pack's cells as Samsung 21700 without a model, so the middle line uses McMaster University's measurements of an LG HG2, and the brackets come from Samsung's and other published data.
12. Nothing is measured on the size drawing. Its arrows imply 13.8 to 18.5 pixels per inch, and no single scale brought more than two of the others within 3.5%, so the saddle table ends at the formula's distance and your tape measure takes over.
13. Addmotor prints no weight for the battery on its own, so the page cannot say how much lighter the folded frame is with the pack out.
14. Read the ceiling table's counts as minimums. The pedal's height off the ground is left out, and including it could only push more riders short of the formula at the top setting.
15. Lean and hand load are not computed. No seat angle, bracket height or grip position is published, so those two subsections give guidance, and the hand-load figure they quote was measured on road racers on the hoods, a stretched position unlike the U-710's upright one.
16. Use each saddle distance to set a first height. Behind it is the 109% rule worked on the median inseam for your height, and the heel check, done on the trike, finishes the job toward a knee bend of 25 to 35 degrees.
17. Every fit table draws its bodies from US Army measurements. Between 2010 and 2012 ANSUR II measured 6,068 soldiers aged 17 to 58, a group that does not sample the US public, so your own inseam should pick your row.
18. Addmotor's documents describe the saddle two ways: an "Adjustable seat" on the Performance tab, as the gallery shows it, and a saddle with a "Backrest" in the August 15, 2026 table; ask us before you order if a backrest matters to you.
19. The definitions behind the class table are the ones our law atlas holds, screened for this trike on October 19, 2026. Two have moved or will move this fall, Connecticut's on October 1 and North Carolina's on December 1, and three-wheeler language outside a definition section was not read in all 51 jurisdictions.
20. Prices, stock and checkout options are as read on October 19, 2026, during Addmotor's Prime Month sale; when Addmotor moves the U-710's price, ours moves with it.

The bottom line

At $2,399, the U-Trike U-710 puts a 750 W rear-drive motor and a 960 Wh pack on a 90 lb trike that folds to 45.2 by 39.3 by 34.2 inches and whose front frame locks upright or leans, with a torque sensor, an 80 mm fork, a disc on each wheel, a parking brake and a rear rack.

Worked through Martin and colleagues' validated power model, the U-710 comes out at about 69 miles for a 180 lb rider at 12 mph on the throttle over level pavement, about 46 with the full 440 lb aboard, and close to 13.7 mph held up an 8% grade with 180 lb.

Its owner stands 5'1" to 6'0" with a barefoot inseam up to about 32.5 inches, weighs 340 lb or less, can load a 90 lb folded frame, and rides where the state's words take in a 750 W three-wheeler. Each refill of the 960 Wh pack runs about 18 cents at the July 2026 US average price of power.

Two answers from us are worth having before checkout: whether the top saddle setting reaches your inseam, and whether the folded trike goes through your vehicle's opening. Send us your height, inseam, vehicle and state, and one reply answers all of it.

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

Addmotor's own studio photograph of the trike sits on the cover at one uniform scale, every pixel as Addmotor made it; Playcut (playcut.ai) built the studio around it with Nano Banana Pro, and the type and its shading were laid over the 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, press release 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 research: the motor maker's workbook, research groups' and laboratories' published measurements, and a road-safety institute's field test.

Expiry conditions

Re-read this page if Addmotor changes the U-710's price, motor, pack, range figure, top speed, weight, payload, saddle heights, standover, folded size, size drawing, colors, stock, product FAQ or UL wording; if Addmotor's Prime Month pricing ends and its price moves; or if the colors, price 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 is read into our atlas, or if a recall is published naming Addmotor, the U-Trike, the U-710 or either of its two SKUs. Verified October 19, 2026.

References

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

1. Addmotor Tech, U-Trike U-710 Folding Tilting eTrike — product page (Size & Fit, Technical, Performance and Delivery tabs as each shows when clicked, stat strip, buy box with stock by color, feature copy and product FAQ, as served for the United States). Retrieved October 19, 2026. https://www.addmotor.com/products/utrike-u710
2. Addmotor Tech, U-Trike U-710 size drawing (u710-size), on the product page. Retrieved October 19, 2026. https://www.addmotor.com/u_file/2608/photo/u710-size_1786411662.png
3. Addmotor Tech, U-Trike U-710 question board (no questions on the day read). Retrieved October 19, 2026. https://www.addmotor.com/question_p531/
4. Addmotor Tech, New Addmotor U-Trike U-710: A Folding Dual-Mode Trike for Agility and Stability (blog, August 15, 2026). Retrieved October 19, 2026. https://www.addmotor.com/blog/utrike-u710-dual-mode-folding-etrike
5. Addmotor Tech, Addmotor UTrike U710 Buying Guide: Folding Tilting eTrike Features (blog, August 26, 2026). Retrieved October 19, 2026. https://www.addmotor.com/blog/addmotor-utrike-u710-buying-guide-folding-tilting-etrike
6. Addmotor Tech, Addmotor UTrike Series: Dual-Mode Tilting Electric Trikes for Every Rider (blog, August 26, 2026). Retrieved October 19, 2026. https://www.addmotor.com/blog/utrike-series-tilting-electric-trikes-for-adults
7. Addmotor Tech, Best Folding Electric Trikes for RV Camping & Road Trips: UTrike U710 vs Freetri E-361 (blog, September 17, 2026). Retrieved October 19, 2026. https://www.addmotor.com/blog/best-folding-electric-trikes-for-rv-camping-road-trips-utrike-u710-vs-freetri-e-361
8. Addmotor, Addmotor Unveils 2026 Electric Trike Lineup: Freetan and UTrike Series (press release, PR Newswire, September 16, 2026). Retrieved October 19, 2026. https://www.prnewswire.com/news-releases/addmotor-unveils-2026-electric-trike-lineup-freetan-and-utrike-series-302880759.html
9. Addmotor Tech, Warranty (the Limited Warranty's covered components and terms for a new trike). Retrieved October 19, 2026. https://www.addmotor.com/pages/warranty
10. 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
11. 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
12. US Government Publishing Office, 15 U.S.C. § 2085 — Low-speed electric bicycles, subsection (b). Retrieved October 19, 2026. https://www.govinfo.gov/content/pkg/USCODE-2024-title15/html/USCODE-2024-title15-chap47-sec2085.htm
13. California Legislative Information, California Vehicle Code § 312.5, subdivision (a). Retrieved October 19, 2026. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH&sectionNum=312.5.
14. California Legislative Information, California Vehicle Code § 231. Retrieved October 19, 2026. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH&sectionNum=231.
15. Pennsylvania General Assembly, 75 Pa.C.S. § 102 — Definitions, "Pedalcycle with electric assist". Retrieved October 19, 2026. https://www.palegis.us/statutes/consolidated/view-statute?txtType=HTM&ttl=75&div=0&chapter=1&section=102
16. Connecticut General Assembly, Public Act 26-24, section 26 (C.G.S. § 14-1(31), effective October 1, 2026). Retrieved October 19, 2026. https://www.cga.ct.gov/2026/ACT/PA/PDF/2026PA-00024-R00SB-00413-PA.PDF
17. Connecticut General Assembly, C.G.S. § 14-1 — Definitions. Retrieved October 19, 2026. https://www.cga.ct.gov/current/pub/chap_246.htm#sec_14-1
18. North Carolina General Assembly, Session Law 2026-46, section 19 (G.S. 20-4.01(7a), effective December 1, 2026). Retrieved October 19, 2026. https://www.ncleg.gov/EnactedLegislation/SessionLaws/HTML/2025-2026/SL2026-46.html
19. Bureau of Land Management, 43 CFR § 8340.0-5 — Definitions, paragraphs (a)(5) and (j) (85 FR 69223, Nov. 2, 2020). Retrieved October 19, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8340/section-8340.0-5
20. Bureau of Land Management, 43 CFR § 8341.1 — Regulations governing use. Retrieved October 19, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8341/section-8341.1
21. Bureau of Land Management, 43 CFR § 8340.0-7 — Penalties. Retrieved October 19, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8340/section-8340.0-7
22. Forest Service, US Department of Agriculture, 36 CFR § 261.13 — Motor vehicle use. Retrieved October 19, 2026. https://www.ecfr.gov/current/title-36/chapter-II/subchapter-B/part-261/subpart-A/section-261.13
23. US Forest Service, Directive Publication Notice, 87 FR 41278 (July 12, 2022), recording the final e-bike directives issued March 31, 2022. Retrieved October 19, 2026. https://www.federalregister.gov/documents/2022/07/12/2022-14777/directive-publication-notice
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