VTUVIA E-Cozy Trike Review 2026: 14.8-in Step, $2,099

$2,099, or $2,199 with the suspension seatpost · a 48 V rear motor rated 750 W, 1,200 W peak, 85 N·m, torque sensor · 48 V 15 Ah = 720 Wh · Class 2, 20 mph · reverse, rear differential, parking brake · hydraulic brakes on all three wheels · 20 × 3.0 tires, 60 mm fork, Shimano 7-speed · 95 lb, 450 lb total capacity · folds to 41.3 × 26.8 × 34.3 in · verified October 5, 2026

Quick Answer — The E-Cozy is VTUVIA's $2,099 folding electric trike: a 750 W rear motor with 85 N·m, a 720 Wh pack, a 14.8-inch step, a backrest, reverse and a rear differential. With 180 lb aboard at a steady 15 mph on the throttle over flat ground, a full pack computes to about 38 miles.

Pedal easily at that 15 mph and the charge stretches to about 55 miles; hold 20 mph on the throttle and it shrinks to about 27. VTUVIA's product page lists 70 miles on pedal assist and 40 on the throttle, and the range section turns both into rides you can plan.

Three wheels hold you up at every stop, so you never balance the E-Cozy: you step through a 14.8-inch frame, sit against a backrest and pedal forward of the seat. It ships as a Class 2 trike, with pedal assist and a throttle to 20 mph, and on its printed figures it sits inside the e-bike definition of 26 of the 51 jurisdictions we screened on October 5, 2026.

What this review covers

Specification · What it is · Fit · Motor · Battery · Range · Brakes and reverse · Fork and gears · Weight, baskets and folding · Riding three wheels · The Mercer fit test · Recalls · Class and the third wheel · Federal land · Green and red flags · Verdict · Checklist · Buying from us · FAQ · Limitations · Bottom line · References

How we verified this E-Cozy review

Each figure was read on October 5, 2026 from VTUVIA's E-Cozy product page, its product record, the E-Cozy user manual that page links, VTUVIA's E-Cozy posts, our own listing and the statutes quoted in the class section. The range and fit sections are computed, and each prints its formula and inputs.

This is a specification-verified review: every number traces to VTUVIA, a statute, published research or arithmetic printed on this page, and a recorded first ride by an independent reviewer is quoted as the reviewer's own. We sell the E-Cozy, so give the red flags the same attention as the green.

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

The E-Cozy on paper: VTUVIA's specification

These are VTUVIA's own words and figures as the E-Cozy page, its record and its manual printed them, read October 5, 2026. The pack's 720 Wh is 48 volts multiplied by 15 amp-hours.

Four of the E-Cozy's figures appear more than one way. VTUVIA's documents give the top speed, the load limit, the range and the throttle in different forms; each appears on this page where it matters, and the range and fit models plan on the product page's figures, with the manual's speed where the page prints a class instead.

A folding trike with a backrest for $2,099

The E-Cozy is the one trike in VTUVIA's current catalog. VTUVIA's product feed, read October 5, 2026, lists 161 products and a single "electric tricycle" among them, this one, published August 13, 2026. An earlier VTUVIA trike, the FT2, survives in the name of a battery listing and in a July 2023 review video, and VTUVIA no longer lists it.

Getting on through the 14.8-inch step, in an image from VTUVIA's E-Cozy page; the arrow is VTUVIA's.

VTUVIA's page builds the trike around getting on and sitting back: "The forward pedaling design, adjustable comfort seat, and supportive backrest allow riders to sit in a more relaxed position with improved body support." The pedals sit ahead of the seat rather than under it, the frame drops to 14.8 inches between the seat and the head tube, and the two rear wheels share a differential.

On our shelf, the Addmotor Citytri E-310 is another trike that folds. The rows below are what separate them, $500 apart.

The E-Cozy rows from VTUVIA's E-Cozy page and the Citytri rows from our Citytri E-310 review, with both of our listings read October 5, 2026.

So the E-Cozy is a step-through folding trike for errands and easy miles, with three hydraulic calipers, seven gears, a backrest, reverse and 450 lb of rated capacity, for $2,099.

Will the VTUVIA E-Cozy fit you? Step, seat and reach

VTUVIA sizes the E-Cozy for riders from 5'1" to 6'3", with a 30.5- to 39-inch inseam. For a median 5'1" rider in the US Army's ANSUR II survey, the saddle formula sets the saddle's top 31.8 inches from the pedal axle; for a median 6'3" rider, 39.9 inches.

On a forward-pedaling trike that distance runs on a slant, from the center of the lower pedal's axle, with the crank pointed along your leg, to the top of the saddle, so check it with a tape measure. The tables set 6,068 measured soldiers, women and men, against the formula at every height from 5'1" to 6'3".

VTUVIA prints one window for the E-Cozy, 5'1" to 6'3", beside the price and again in the size guide of its product page, and a recommended inseam of 30.5 to 39 inches in the same guide.

Find your own number in three steps:

1. Measure your inseam in socks. Stand with your back against a wall, draw a hardcover book up between your legs until it stops, spine level, and have someone measure from the floor to the spine.
2. Look up your height in the saddle table, and set your inseam beside VTUVIA's 30.5 to 39 inches.
3. Set the saddle from your row when the trike arrives, then adjust it with the knee and heel checks.

How high should my saddle go?

For the median 5'1" rider the formula wants 31.8 inches from pedal axle to saddle top; for the median 6'3" rider, 39.9 inches. Every figure is 109% of the median inseam at that height, the multiple evaluated in Peveler et al., 2005.

The two right-hand columns show where published recommendations, which run from 106% to 110.4% of inseam, would set it: Ferrer-Roca et al., 2012 cite 106 to 109% as recommended and propose 108.6 to 110.4%.

Pedal axle to saddle top for the median rider at each height, at 109% of inseam and at both ends of the published band; the inseam column runs from the survey's 5th to its 95th percentile, women and men together.

From 5'1" to 5'4", set your own inseam beside VTUVIA's. The survey's median inseam is 29.2 inches at 5'1" and 30.5 inches at 5'4", beside VTUVIA's recommended 30.5 to 39; both of VTUVIA's figures are printed here, so set yours against each before you order.

The seat itself goes from 27.2 inches above the floor at its lowest to 37.0 at its highest, by VTUVIA's figures. Because the pedals sit ahead of the seat, a floor height becomes a pedal-axle distance only with the crank's length and the crank axle's position, which VTUVIA does not print (Limitations).

Can I put my feet down at a stop?

You don't need to: three wheels hold the E-Cozy up at a stop, and you step through a 14.8-inch frame to get on. At 5'1", 95 of every 100 riders clear VTUVIA's 14.8-inch step by 12.9 inches or more, and at 6'3" by 20.5 inches or more.

Each survey body's barefoot inseam minus VTUVIA's 14.8-inch "Standover height"; the middle column is the median inseam, and the last is the clearance that 95 of every 100 riders at that height meet or beat.

Seated with the saddle at its lowest, almost every rider in VTUVIA's window reaches the ground with both feet flat. The lowest seat is 27.2 inches from the floor; 99 of every 100 riders at 5'1" and 5'2" reach it flat-footed, every rider modeled from 5'3" up does, and the median 5'1" rider has 2.0 inches to spare.

Survey bodies' barefoot inseam against VTUVIA's 27.2-inch "Minimum seat to floor", counted at each height and rounded to whole riders.

A saddle set for good pedaling sits higher than its lowest setting, and on a trike that costs you nothing at a light: brake, set the parking brake if you are getting off, and stay seated.

How upright will I sit?

Upright and supported: the backrest holds your back, the pedals sit forward of the seat, and the bars rise from 33.5 to 41.3 inches off the floor. VTUVIA's page lists an "Adjustable Stem" to "Adjust the handlebar angle to create a more natural reach and relaxed riding posture", and a 20.5-inch reach in its size guide.

Seated upright at a standstill with the backrest behind, in a test-ride photograph from VTUVIA's E-Cozy page.

VTUVIA publishes no stack, seat angle or crank position for the E-Cozy, so no lean angle is computed here, and the adjustable stem is how you tune it. On an early-production trike with a fixed stem, the eBike Reviews & Adventures rider, describing themself as "a tall guy", found that "the handlebars do sit a little bit low", and said VTUVIA had told them later batches would have the adjustable stem the page now lists.

In Priego Quesada et al., 2017, twenty recreational cyclists rated the most upright of three trunk positions the most comfortable. If your knees come close to the bars, raise the bars; if you reach down to the grips, raise them and bring them back.

How much weight rests on my wrists?

Little, because you sit upright against a backrest. A hand-load figure needs the grip's position on the frame, which is not published for the E-Cozy; for scale, ten road racers on their brake hoods carried 15% of their body weight on the bars in Carahalios, 2015.

Sitting up moves your trunk's weight onto the saddle (Clauser et al., 1969 give each body segment's share), and in 36 riders padded gloves cut the pressure over the ulnar nerve by 10 to 28% (Slane et al., 2011). The backrest takes the rest: lean into it and your hands only steer.

How do I set the saddle when it arrives?

Set it so your knee keeps a bend of 25 to 35 degrees at the far point of the stroke (Peveler et al., 2007). Start from the heel: rest it on the pedal where the crank points along your leg, and move the saddle until that leg is straight.

In Peveler et al., 2005, the heel method put 70% of 19 trained cyclists inside that knee range, ahead of either inseam formula. On a forward-pedaling trike, check the knee with the crank pointed toward the pedal's farthest reach rather than straight down.

Then set the backrest and tighten everything. The eBike Reviews & Adventures rider found the seat "loosened up with me a little bit" on the first ride, so it leaned a little too far back; check the seat and backrest clamps after the first few miles. For a softer seat, the $2,199 version comes with VTUVIA's 50 mm suspension seatpost.

The saddle tilts and slides and the backrest moves, as VTUVIA's arrows show, in an image from VTUVIA's E-Cozy page.

The fit arithmetic

One rule builds the saddle table: 109% of inseam, measured from the pedal axle to the top of the saddle. A 5'8" rider with the survey's median inseam of 32.6 inches gets a saddle 35.6 inches from the pedal axle, or 34.6 at 106% and 36.0 at 110.4%.

The LeMond method instead takes 88.3% of inseam from the crank axle, 28.8 inches for the same rider; add the crank's length and the two methods land close together.

VTUVIA's Pearl White side photograph, scaled to the 52.8-inch wheelbase, read the overall length 5.2% long, and its two rear wheels overlap into one; it is not a true side elevation, so nothing is measured on it, and this page places no saddle, lean or hand load on the frame (Limitations).

The motor: 750 W and 85 N·m, chained to the rear axle

VTUVIA rates the E-Cozy's "Rear Brushless Motor" at 750 W, with "PEAK 1200W" in its specification table, on a 48 V, 25 A controller, and lists 85 N·m of torque. The manual's parameter table repeats "Rated 48V 750W (PEAK 1200W)" and "Max torque: 85N.m". The rating is the figure the class section reads against the statutes.

The motor sits ahead of the rear axle, not inside a wheel, and turns both rear wheels through a chain and the differential. VTUVIA's motor image shows it on a cross shaft between the 7-speed freewheel and a second chain, its differential image shows that chain on the differential at the axle, and the manual's structure drawing labels "Motor" in the same place.

On an early trike, the eBike Reviews & Adventures walk-around looks down through the rear basket at the same layout.

The motor on its shaft, the 7-speed freewheel on one side and the chain to the differential on the other, in an image from VTUVIA's E-Cozy page.

Your gears serve your legs, not the motor. The pedal chain turns the freewheel beside the motor, and the motor's own chain carries both to the axle, so a shift changes how fast your legs turn, not the motor's work, which the gear table shows in watt-hours.

The assist reads how hard you pedal. VTUVIA's table lists a "Torque Sensor", which its page calls "V-Adapt™", promising "smooth and natural power assistance by responding to your pedaling effort for a more comfortable ride". The manual's parameter table reads "PAS: Torque Sensor System".

On an early-production trike, the eBike Reviews & Adventures rider read 7 mph on the display pedaling gently in level one, 10 to 11 mph pushing harder in the same level, and 13 to 15 mph in level two. The reviewer called it "a torque sensor", and found the motor "pretty quiet" unless "you're really getting after it".

The throttle gives the full 20 mph in any assist level. In the same ride the reviewer reached the top speed on the throttle in level one as well as level five: it is going to "give us top speed on throttle even if you're in" level one. Practice it in an open lot first, and open the throttle gently for a slow start.

Hub motors and mid-drives are set side by side in our e-bike motor guide. For the E-Cozy in particular, the hills table shows what the motor can hold on each grade.

The battery: 48 V × 15 Ah = 720 Wh

The pack stores 720 watt-hours, 48 volts times 15 amp-hours, and it runs the motor, the display, the lights and the turn signals. VTUVIA's table reads "48V 15Ah (720Wh), Lithium-Ion Battery", and the manual's parameter table prints the same figures.

The 720 Wh pack in its cradle below the seat, its key lock at the top, in an image from VTUVIA's E-Cozy page.

The manual shows the pack coming out: "Turn the key to 'unlock'", "Pull up the battery", and "Make sure the rail is aligned when install it". VTUVIA's table gives the charging time as "About 7 Hours", and the manual's charging section says "A full charge will take 6-8 hours".

Plug it in after dinner and it is full by morning. For storage, the manual asks you to "remove the battery from the frame and recharge it at least once a month".

How far the E-Cozy goes: range by speed, pedaling, hill, load and cold

On a full pack, a 180 lb rider covers about 38 miles of flat road at 15 mph on the throttle, about 27 at 20 mph, and about 55 at 15 mph with easy pedaling. Hold 10 mph up a steady 8% grade with the motor doing all the work and the charge lasts about 8 miles.

To find your own figure:

1. Look up your speed and how much you pedal in the speed tables.
2. Add the climbing: each 1,000 feet at 10 mph on the throttle costs 151 to 180 Wh on grades from 4 to 10% (the hills table).
3. Correct for your load and the temperature, then plan on three-quarters of the pack.

Each figure is one steady ride computed from VTUVIA's specification, a Bafang motor rated at the same 750 W and 85 N·m, rolling resistance measured on ten fat tires and a cycling-power model validated on an open road. The formula subsection works one ride through.

Does speed cut the E-Cozy's range? Miles at each speed

Yes, and hardest near the top: about 50 miles at 10 mph on the throttle, about 27 at 20 mph. Going from 15 mph to 20 mph alone costs 11 of those miles, 38 at the slower pace and 27 at the faster.

Most of that goes to the air. Its drag grows with the square of your speed, and the power to push through it grows with the cube, so every extra mile an hour near the limit costs more than the last.

180 lb aboard and the motor doing all the work, on flat ground at 77 °F, up to VTUVIA's 20 mph limit. The last column keeps back the quarter of the pack KIT's researchers found unused on one measured pedelec.

Pedal easily, about 75 W, and the 15 mph ride grows from 38 miles to 55. In these tables 75 W is easy and 150 W is steady; with the motor off, 75 W from your legs holds about 8.6 mph on the level and 150 W about 12.7 mph, so take the column closest to how you ride unassisted.

Each cell is the miles a full charge gives on flat ground with 180 lb aboard. At 15 mph the pack spends 19.2 Wh a mile with the motor doing everything and 13.2 Wh with easy pedaling. The 95-mile cell is the least certain: your legs do most of the work there, at a motor load for which neither Bafang's workbook nor any VTUVIA document read here prints an efficiency (Limitations, item 9).

The assist level on the display does not fix these miles by itself; the speed you hold and how much of the work you hand the motor do. VTUVIA's own range note makes the point in its list of what moves the figure: "the rider's weight, pedal assist level, throttle use, terrain, speed, weather, and towing weight".

Do gears or pedaling save battery on the E-Cozy?

Pedaling saves battery; shifting on its own does not. The E-Cozy's motor reaches the axle by its own chain, outside your gears, so a shift moves your cadence but not the motor's work, and at a set speed and grade only more effort from you lowers the pack's draw:

Watt-hours drawn from the pack each mile by a 180 lb rider in 77 °F air, with 75 W from your legs in the easy column and 150 W in the steady one.

Use the seven gears to keep your legs turning at a pace they like, and shift down before you stop or meet a hill so the next start comes easy. The eBike Reviews & Adventures rider was "starting to pedal pretty quick" near 17 mph in the top gear and wished for "an eighth gear or we had a bigger sprocket", so above about 16 mph the motor does more of the work.

How much battery does a climb cost?

Climbing 1,000 feet at 10 mph costs the pack 151 to 180 Wh on the throttle over grades of 4 to 10%, and 142 to 166 Wh with easy pedaling. About 104 Wh of that lifts rider and trike at the wheels; the rest is heat in the motor, its chain and the pack.

With 180 lb aboard and VTUVIA's 95 lb, the load is 275 lb. On the throttle up 8% at 10 mph each 1,000 feet costs 168 Wh, so the 720 Wh pack would lift you about 4,290 feet before it ran dry. The model counts no descents, so the coasting a hilly loop gives back is not in these figures.

Each row holds 10 mph with 180 lb aboard. The watt-hours and throttle miles leave your legs out, and the easy column adds 75 W back. The last column is the fastest steady pace the motor holds alone on that grade within VTUVIA's 1,200 W peak, never above 20 mph; "past the peak" means it cannot hold 10 mph there by itself.

Past 12%, pedal in a low gear. On 15% the motor alone holds about 7.2 mph within the 1,200 W peak, so pedal along and choose a lower gear before the grade starts.

Put the climbing on top of your flat miles. Say you ride 8 miles each way at 15 mph on the throttle, with 300 feet of climbing at 6%: about 354 Wh, or 66% of the 540 Wh you plan on with a quarter held back. Stops, wind and broken pavement come on top, because the model holds one steady speed.

How much does a heavier rider or a full basket cost?

On the flat, extra weight costs a few miles; on a climb, a good many more. In the power model, each pound adds rolling drag and has to be lifted up every grade while the air's drag stays the same, so heavy and light loads drift further apart as the road tilts. Groceries in the basket cost the pack exactly what your own pounds do.

Rider plus everything carried, with VTUVIA's 95 lb for the E-Cozy added to each row; throttle only. The 450 lb row is VTUVIA's rated total capacity, and the 331 lb row is the 150 kg the manual's riding notes give as the maximum load including the rider.

A 200 lb rider with 30 lb of groceries reads the 230 lb row: about 35 flat miles at 15 mph. At the full 450 lb, the level 15 mph ride drops from 38 miles to 27, and from the manual's 150 kg up the throttle alone cannot hold 10 mph up an 8% grade within the 1,200 W peak, so plan to pedal on the steep parts (the hills table).

VTUVIA's manual gives a third, shorter range: "15-20 miles on a full charge with minimal pedaling when traveling on flat, paved terrain." No steady level ride up to 20 mph uses the pack that fast in the model: 20 miles would mean 36 Wh a mile, and the model spends 26.5 Wh at 20 mph.

Rides that do spend that much are hilly or heavy ones: 10 mph up a steady 4% grade on the throttle lasts about 16 miles, and 450 lb at 20 mph on the flat about 21.

How much range does the cold take?

Colder air means shorter rides. The 38 miles of a 15 mph throttle ride at 77 °F fall to about 30 at freezing, 32 °F, and about 27 at 14 °F.

180 lb aboard on level ground. The central figures follow McMaster University's LG HG2 cell measurements at 77, 50, 32 and 14 °F for a 0.5C discharge, interpolated between, with the cells taken to be at the air's temperature. VTUVIA names no cell maker for the E-Cozy, so a cell with published cold data stands in.

The low bracket is the least capacity a Samsung data sheet reports at that temperature for a discharge of one to four hours (25R and 30Q at 32 °F, 35E at 14 °F); the high bracket is the most energy Casado and colleagues measured in 2025 at a gentler rate.

Below freezing three losses add up. At 32 °F the cells return about 89% of their energy at 77 °F, between 80 and 93% by source, and the air is about 9% denser by the U.S. Standard Atmosphere's gas law, so there is more of it to shove aside.

The tires roll harder in the cold as well. The model raises rolling resistance by 0.5% for every °F below 77 °F (0.9% per °C), between Rothhämel's fit for a 42 mm tire and Bicycle Rolling Resistance's road-tire average, and holds it level below 41 °F. On a cold morning, keep the pack indoors overnight and lock it in just before you go.

Heat pulls the other way (U.S. Standard Atmosphere): at 95 °F the cells keep about 99% of their energy, the air is about 3% thinner and the tires roll about 9% easier, so a 15 mph throttle ride goes about 1.5 miles farther than at 77 °F.

Do the tires and your posture cost range?

The tire counts for more than how you sit. VTUVIA's table lists a 20 × 3.0 tire, which the manual names as CHAOYANG; no drum test of it turned up, so the model uses the median of ten fat tires Bicycle Rolling Resistance measured, the basis our reviews use for this tire size.

Level ground, 180 lb aboard, a full pack. The three coefficients come from the same drum's fat-bike table, converted from its rolling-resistance watts; on a trike the tires' drag acts on the whole weight, whichever wheels carry it.

Keep the tires at the pressure printed on the sidewall, since a soft tire rolls harder. Posture matters more as speed climbs: the model's drag area of 0.640 m² is what Tengattini and Bigazzi measured on 37 people riding upright cruisers, and no field measurement of a trike's drag area turned up.

The E-Cozy is wider behind you than a bicycle, so the model runs a second figure one standard deviation above that mean, 0.819 m²: the 20 mph throttle ride falls from 27 miles to 23, and at 15 mph from 38 to 33.

VTUVIA's two range figures, as steady rides

Both range figures on VTUVIA's product page match a steady ride the model can name. The product page gives 70 miles on pedal assist and 40 on the throttle, and its highlight strip and the manual's parameter table repeat them.

The steady level-ground speed that uses all 720 Wh over VTUVIA's distance with 180 lb aboard: 70 miles allows 10.29 Wh a mile and 40 miles 18.00. A dash means no steady speed from 5 to 20 mph fits that column.

Read that way, the page's 70 miles means pedaling easily at about 13.1 mph the whole way, and its 40 on the throttle means holding about 14 mph, close to the model's own 38 miles at 15 mph.

Plan on three-quarters of your row. The KIT test bench used that share of its pack, which turns the 38-mile ride at 15 mph on the throttle into a planning figure of 28 miles.

The range formula, worked through

One equation sits under every range figure on this page: the 1998 model Martin and colleagues checked against power meters on an open road. It turns speed, weight, slope and air into the power the rear wheels must deliver to hold a steady ride in still air:

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

Here P is the driven wheels' power. Inside the brackets, m is the mass of rider, cargo and trike, g is gravity and θ the slope's angle; Crr, the tires' rolling-resistance coefficient, is 0.0105 here, a drag of 1.05% of the weight they carry, spread over three tires. ρ is the air's density, CdA the drag area you present to the wind, and v your speed (Martin et al.).

On the E-Cozy the motor turns the axle through a chain of its own, so four stages sit between the wheels and the cells:

1. Your legs turn the freewheel beside the motor through the pedal chain, then reach the rear wheels through the motor's chain, at 97.7% for each chain (Martin and colleagues' chain efficiency); the motor carries the rest.
2. The motor's chain to the differential takes the same 2.3% of the motor's output. No figure for the differential's own losses was found, and the model leaves them out.
3. The motor is modeled on a hub whose maker publishes its numbers: Bafang's 2021 OEM workbook lists the RM G062.750.D/DC rear gear hub at 48 V, 750 W and "Max Torque (N.m) 85", the figures VTUVIA prints, turning 400 rpm with no load and 350 at its rating, at an efficiency of at least 80%. VTUVIA prints no sprocket sizes for the motor's chain, so the model turns the motor at the wheels' own speed; it runs at 80% at its rating and less when lightly loaded, with the pack's draw held to VTUVIA's 1,200 W peak.
4. The cells lose a little energy as heat as they discharge, at the rate Arango, Lopez and Ceren measured on a 48 V pack.

The last step is two divisions: Wh per mile = pack watts ÷ mph, and range = 720 Wh × the share of its energy the cells still hold at that temperature ÷ Wh per mile.

The 38-mile ride, worked through: 180 lb aboard, flat ground, 15 mph, all of it on the throttle (Martin et al.). The rear wheels must deliver 200.7 W to hold that speed, 86.5 W against the tires and 114.2 W against the air.

The motor's chain takes 2.3%, so the motor puts out 205.4 W, turning with the 21.53-inch wheels at 234 rpm and 8.4 N·m. Built from Bafang's published figures as 1.146 N·m per amp, 0.307 Ω of winding resistance and 1.67 A with no load, the motor meets it on 9.0 A at 74% efficiency and draws 277.3 W.

With the pack's own losses added, the cells supply 287.5 W; at 15 mph that is 19.17 Wh a mile, and 720 Wh at 19.17 Wh a mile lasts about 37.6 miles, or 28.2 with a quarter of the pack held back.

Before it computes a ride, the model reproduces two published figures:

Each run first recomputes Martin and colleagues' Appendix I case (8.36 m/s, a 90 kg system on a 0.3% grade) and the Bafang motor's rated point, and stops if either comes out wrong.

No measured ride to an empty pack was found for the E-Cozy. The one independent ride review, by eBike Reviews & Adventures on August 26, 2026, shows speeds, brakes, reverse and handling on an early-production trike, on ground the reviewer describes as having no real hills; it runs no pack to empty. The model's figures rest on the physics and the two published checks above (Limitations).

Brakes, reverse and the controls

Each of the three wheels has its own hydraulic caliper, on 180 mm rotors of martensitic stainless steel. VTUVIA's table lists "Front: Hydraulic Disc Brake; Rear: Hydraulic Disc Brake L+R caliper", and the manual's parameter table gives the rotors as "180mm Martensitic stainless steel(2CR13)".

A caliper on each rear wheel, marked L and R, on a purple E-Cozy, in an image from VTUVIA's E-Cozy page.

Learn which lever stops which wheel before you ride. The manual's braking section says "The left brake handle controls the rear brake and the right brake handle controls the front brake", and asks you to check your brakes "prior to riding your bike each time". Try each lever at walking pace in an empty lot.

A parking brake holds the trike while you get on, get off or load the baskets. VTUVIA's page lists "a dedicated parking brake", and the eBike Reviews & Adventures rider pointed out "parking brakes left parking brakes, right" on an early trike.

A parking latch on each brake lever, in an image from VTUVIA's E-Cozy page.

Reverse backs you out of a garage or a parking space under power. The manual's steps: "1. Turn on the display. 2. Press the red button on the right handlebar (you'll hear beeping). 3. Twist the throttle to go backward." Pressing the button again ends the beeping and returns the throttle to forward.

The reviewer found reverse answered only with an assist level selected, level one rather than zero, and with the parking brakes released, and liked the audible warning. VTUVIA's page describes it as "Reverse Assist" to "Move easily through garages, driveways, and tight spaces without pushing".

The red reverse button under the right grip, with VTUVIA's warning label, in an image from VTUVIA's E-Cozy page.

The lights and signals run off the main pack. The manual lists a "48V5W 340±30LM LED with horn" at the front and a rear light that brightens as a brake light and flashes as a turn signal; VTUVIA's page adds "Built-in turn signals". The display is 3.5 inches, "Full Color,High Brightness,Adjustable Angle", and the manual's display section lists a walk-assist "6KM/h cruise mode", about 3.7 mph.

Fork, tires, gears, differential and water

The front fork has up to 60 mm of travel, by VTUVIA's table ("Suspension Fork Max 60mm Travel"), and the $2,199 version adds a seatpost with up to 50 mm. VTUVIA notes the seatpost "is an optional upgrade and is not included as standard equipment".

The reviewer's early-production trike had a rigid fork ("No suspension forks, but those forks are working just fine"), a twist throttle and a fixed stem, where VTUVIA's table now lists the suspension fork, a thumb throttle and an adjustable stem. VTUVIA's manual and the control images on its page show a twist grip, so check the throttle, the fork and the stem on yours when it arrives.

The tires are 20 × 3.0 on all three wheels. The reviewer welcomed them: "a lot of trikes we've been getting recently are true fat tire four inch", and the three-inch tire is "a little bit smaller a little bit lighter".

The gearing is Shimano: a 7-speed shifter, rear derailleur and cassette, by VTUVIA's table. With the motor on its own chain to the axle, those gears serve your legs alone, the subject of the gear table.

The rear differential lets the two rear wheels turn at different speeds in a corner. VTUVIA's FAQ puts it this way: "The rear differential helps both rear wheels rotate more naturally during turns, creating a smoother and more controlled riding experience."

The differential on the rear axle, its sprocket taking the motor's chain, in an image from VTUVIA's E-Cozy page.

VTUVIA's class note covers water. It says the trike is "built to the IP6x-rated standard, making it suitable for riding through creeks, mud, and snow", then asks you to "avoid prolonged or intentional immersion in water" and to keep pressure washers and sprayers away (VTUVIA's E-Cozy page).

The manual's care section says the same in its own words: "Do not spray your bike down with water to avoid damaging the electrical components", and "The motor should never be submerged in water." Ride through a wet street, keep the motor out of standing water, and wipe the trike down with a damp cloth.

Weight, load, baskets and folding

The E-Cozy weighs 95 lb with its rack and fenders on VTUVIA's table, and the manual's parameter table repeats "95 lbs". That is two people to lift it into a car, or a ramp, or a hitch rack rated for a trike's weight and width.

Keep yourself and everything on the trike within VTUVIA's load figures. VTUVIA's table gives a 450 lb "Total capacity", and the manual's parameter table repeats "Max Load: 450 lbs", while the manual's riding notes say "The e-bike maximum load (including rider weight) 150Kg. Don't overload." That is 331 lb; if you and your load come to more, ask us before you order.

Both baskets are measured on VTUVIA's page: a front basket of 13.4 × 11.4 × 3.9 inches and a rear basket of 19.3 × 18.1 × 9.3 inches. The reviewer's rear basket had no "basket liner or basket bottom", so small items need a bag: VTUVIA's rear basket bag for the E-Cozy is $190.80 on our shelf.

The rear basket at 19.3 × 18.1 × 9.3 inches, with a VTUVIA bag in it, on a red E-Cozy, in an image from VTUVIA's E-Cozy page.

The frame folds to 41.3 × 26.8 × 34.3 inches, by VTUVIA's size guide, against 72.4 × 28.5 inches unfolded. The reviewer's advice for folding: "Just remember to remove the seat". VTUVIA's assembly guide is a video linked from the product page.

Measure before you buy. At 28.5 inches wide, the E-Cozy needs a doorway, gate or garage gap wider than that, plus room for your hands; folded, the 26.8-inch side is the narrow one, and the 95 lb still needs a plan to lift.

From above: the 52.8-inch wheelbase and the 28.5-inch width a doorway has to pass, in an image from VTUVIA's E-Cozy page.

Riding three wheels: stops, turns and slopes

A trike never asks you to balance, and it asks you to turn differently. Three wheels hold it up at a stop and at walking pace, and VTUVIA's FAQ puts it this way: "The three-wheel platform provides additional stability at low speeds and during everyday riding".

A two-wheeler leans into a corner and a trike does not, so in a fast turn your weight swings toward the outside wheel. On an early trike, the reviewer tried "wiggles here in the street" at about 10 mph, warned that it was "a little dangerous", and saw that "the wheel just came off the ground a little bit", while still calling it "a pretty stable trike".

Slow down before every turn, and turn wide. Brake while you are still straight, keep your speed low through the corner, and save the 20 mph for straight, smooth stretches.

Practice in an empty lot first: the reverse, the throttle in level one, a few slow turns in each direction and a stop with each lever. A few minutes there make the first street ride easier.

The Mercer fit test

The same seven Mercers of Fair Oaks, California, stand in for every reader we review for, so fit answers compare cleanly from one machine to the next (meet the Mercers). Each verdict below comes from a figure VTUVIA publishes, a row of the fit tables, or the California code section cited beside it.

Six of the seven fit the frame, and none of them has to balance it at a stop. Ruth and Frank get the most from the 14.8-inch step and the backrest, Dana from the two baskets, and Jack raises the stem; Cole rides in a helmet under California law, and Ivy waits for a machine sized for her.

Has it been recalled?

No. We queried the Consumer Product Safety Commission's recall data on October 5, 2026 for VTUVIA, Vtuvia and vtuviaebike by title, product name and manufacturer, and for each spelling of the trike's name, E-Cozy, E-COZY, E-COZEY, E Cozy and Ecozy, by title and product name.

None of them names VTUVIA or the E-Cozy. The same queries first returned the recalls known to exist for Ancheer (1), Specialized (54) and Trek (24), and the word "Cozy" alone returned other products' recalls, which shows the name search reaches inside a title. We also read every field of the 623 bicycle, e-bike, battery and scooter recalls in the set we saved on September 25 for the brand and the trike's name.

The class question: 750 W, 20 mph and a third wheel

As VTUVIA ships it, the E-Cozy is a Class 2 trike: pedal assist and a throttle that stop at 20 mph, on a motor rated at 750 W. VTUVIA's class note says it "comes out of the box as a Class II electric trike, equipped with pedal assist and throttle", its table lists "Class 2", and the manual's parameter table gives "Max Speed: 20 MPH".

VTUVIA prints the top speed one more way. A VTUVIA post about trike safety, published March 5, 2026, lists "15 mph Max Speed" for the E-COZY; the manual and VTUVIA's post on riding without pedaling give 20 mph, and the range tables run to 20.

The federal consumer-product definition counts three wheels in. 15 U.S.C. § 2085(b) describes a low-speed electric bicycle as "a two- or three-wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts (1 h.p.)", whose top speed on the motor alone, with a 170-pound rider, "is less than 20 mph".

California counts the third wheel in as well. Its Vehicle Code § 231 makes a bicycle a device "having one or more wheels" and adds "An electric bicycle is a bicycle", and § 312.5(a), read October 5, 2026, covers a bicycle with fully operable pedals and a motor that "does not exceed 750 watts of power".

At a 750 W rating the two texts give opposite answers. A motor rated at exactly 750 W is not "less than 750 watts", yet it does not "exceed 750 watts" either. Neither statute says which figure, rated or peak, is the one to measure, and VTUVIA publishes both: 750 W rated, 1,200 W at peak.

All four texts as read on October 5, 2026, in § 2085(b), § 231 and § 312.5(a), against the figures VTUVIA prints for the E-Cozy.

On October 5, 2026 we screened the E-Cozy against the electric-bicycle definition of all 50 states and the District of Columbia. Its printed figures, a 750 W rating, a throttle, 20 mph, three wheels and 28.5 inches of width, sit inside 26 of those 51. Each state's watt line was read in its own words, then its wheel count, then New York's width line.

Our screen of all 51 on October 5, 2026: the motor, speed and throttle limbs from our state rule table, each with the statute's own boundary word, then the wheel count and the width. Five of the 19, AL, AR, ID, MO and VT, also write their bicycle on two wheels or leave the count open; the motor limb decides them first.

Outside a state's definition, the state's code governs the trike as whatever other vehicle it names, and our state guide links each state's own page, New York's and Texas's among them. The federal definition shapes how the Consumer Product Safety Commission treats the product, but where and how you ride is set by your state, and paths, parks and trails often add rules of their own.

Parks, trails and federal land

Off the street, the land manager's own definition and route map decide where the E-Cozy may ride, whatever its class. When a ride starts at a trailhead, find out who manages the land before you unload the trike.

Each manager's own document answers its row, for the E-Cozy and for any other e-bike or trike.

The Bureau of Land Management draws its e-bike line in 43 CFR 8340.0-5(j): a cycle with fully operable pedals and a motor "of not more than 750 watts (1 h.p.)", in one of three classes. The E-Cozy's 750 W rating meets "not more than 750 watts", and the 1,200 W peak goes past it.

Paragraph (a)(5) of that section keeps an e-bike out of the off-road vehicle rules only while three things all hold: roads and trails "upon which mechanized, non-motorized use is allowed", a motor not "exclusively propelling the e-bike for an extended period of time", and a field office that "has expressly determined" e-bikes should be treated like non-motorized bicycles.

If any one of the three fails, the E-Cozy is an off-road vehicle on that ground, penalties and all. 43 CFR 8340.0-7 sets the penalty for breaking the off-road rules of subparts 8341 and 8343 at "a fine of not more than $1,000 or imprisonment for not longer than 12 months, or both". A long stretch on the throttle alone fails the second condition by itself.

National Forests go a step further. The Forest Service's notice at 87 FR 41278 records directives for "managing all classes of e-bikes as motor vehicles", and where a district has published its motor vehicle use map, 36 CFR 261.13 forbids operating a motor vehicle "other than in accordance with those designations". Our public-land e-bike guide goes through each federal land agency's rules.

Green flags / Red flags

Green flags

• A 14.8-inch step that 95 of every 100 riders at 5'1" clear by 12.9 inches or more, and a 27.2-inch lowest seat that every rider modeled from 5'3" up sits on with both feet flat.
• Three wheels, a backrest and forward pedals, so you never balance it at a stop and you sit back to ride.
• 38 computed miles on one charge for a 180 lb rider holding 15 mph on the throttle over flat ground, and 55 with easy pedaling.
• Hydraulic brakes on all three wheels with 180 mm rotors, a parking brake, powered reverse, turn signals and a horn.
• A rear differential, seven Shimano gears and a 60 mm fork on 20 × 3.0 tires.
• 450 lb of rated capacity and two measured baskets, front and rear.
• No recall naming VTUVIA or the E-Cozy in the CPSC's data on October 5, 2026.
• $2,099, VTUVIA's own price, in Pearl White, with the rear basket bag ($190.80) on our shelf.

Red flags

Each is about fit: who the E-Cozy is wrong for, and what to do instead.

• Wrong if you ride in one of the 19 states whose definition reads "less than" or "fewer than" 750 watts and want a trike that sits inside it: read our Eunorau NEW-TRIKE 2.0 review, a 500 W folding trike whose printed figures sit inside 40 of the 51, 14 of those 19 among them.
• Wrong if your budget stops at $1,600. The Addmotor Citytri E-310 folds too, with a 750 W motor and a 960 Wh pack, for $1,599.
• Wrong if you want fat tires for sand, snow or soft trails. The Addmotor Grandtan M-340 is a fat-tire trike.
• Wrong if you want to ride with your legs out in front, lower down. The Addmotor Arisetan II M-360 is a semi-recumbent trike.
• Wrong if two adults want to ride one machine. The E-Cozy has one seat; the Addmotor M-380 tandem carries two riders.
• Wrong if it has to be carried up stairs or lifted alone. At 95 lb it needs two people, a ramp or a ground-floor home; the VTUVIA SX20 is a folding two-wheeler with a 13.8- or 15.4-inch step.
• Wrong for paths open to Class 1 bikes only. The throttle puts the E-Cozy in Class 2, so send us the path's name and we will read its rule for you.

Buy it if / Buy something else if

Buy it if you want three wheels so you never balance at a stop, a 14.8-inch step to get on, a backrest to sit against and two baskets for errands, with hydraulic brakes on every wheel, reverse and a parking brake, for $2,099. The model gives a 180 lb rider 38 miles at 15 mph on the throttle over flat ground, or 55 with easy pedaling.

It suits riders from 5'1" to 6'3" whose inseam sits inside VTUVIA's 30.5 to 39 inches, who ride neighborhood streets, paths and errands at an easy pace, and whose state's definition takes in a 750 W, three-wheeled Class 2 machine.

At $2,099 you get a 750 W rear motor with 85 N·m and a 720 Wh pack, a torque sensor and a throttle, seven Shimano gears, a rear differential, three hydraulic calipers, a 60 mm fork, lights, turn signals, a horn and two baskets, on a frame that folds. Spread over our listing's 12-month Shop Pay plan at 15% APR, it comes to $189.45 a month, $2,273.40 in total.

Buy something else if you ride in a state whose definition leaves a 750 W trike out, want fat tires or a recumbent seat, need two seats, must carry it alone, or want to spend less: the red flags send each of those to a machine we sell. If price is the only reason, the Citytri E-310 is a folding three-wheeler for $1,599.

Our e-bike reviews hub collects every review we have published, and our VTUVIA brand profile sets the E-Cozy beside the other VTUVIAs we sell.

The E-Cozy from the side, the low step and the backrest in view, in VTUVIA's studio photograph.

Before you buy: the checklist

Go through these ten before you spend $2,099, beginning with where you will ride.

1. Start with your state: find its watt line and its wheel count in the class section, then read your state's e-bike page and the signs on each path you use.
2. Hold the E-Cozy against them: a 750 W rating, a 1,200 W peak, Class 2, three wheels, 28.5 inches wide and 20 mph as it leaves VTUVIA.
3. Measure your inseam and find your row in the saddle table; set it beside VTUVIA's 30.5 to 39 inches.
4. Measure the narrowest doorway or gate on the way to where you will park it; it has to pass 28.5 inches plus your hands.
5. Plan the lifts: 95 lb takes two people, a ramp or a hitch rack rated for a trike's weight and width.
6. Weigh yourself with your cargo, and keep the total inside VTUVIA's figures: 450 lb in the table, 150 kg in the manual's riding notes.
7. Find your steepest climb in the hills table, and plan to pedal in a low gear past 12%.
8. Look up your errands in the range tables, add the hills and the cold, and keep a quarter of the charge back.
9. Practice before the street: the reverse, the throttle in level one, slow turns both ways and a stop on each lever, in an empty lot.
10. If your building, city or a rebate program wants a certificate, ask us before you order, and we will request VTUVIA's documents in writing.

Buying it from us

Why buy the E-Cozy from Redtail

Our listing priced the E-Cozy at $2,099, or $2,199 with the suspension seatpost, on October 5, 2026, the same as VTUVIA's page that day.

Pearl White, the colorway our store and VTUVIA could both ship on October 5, 2026, in VTUVIA's studio photograph.

A change-of-mind return follows the refund policy: ask within 72 hours of delivery with the trike unopened in its factory packaging, and the refund is reduced by a 15% restocking fee and the cost of return shipping, while an order you cancel carries a 3% transaction fee. Questions about fit, range or the rules in your state cost nothing, and asking them first is the better order of events.

Frequently asked questions

How far can the VTUVIA E-Cozy travel on one charge?

At 180 lb on flat ground, about 38 miles at 15 mph on the throttle by the model, 27 at 20 mph, or 55 at 15 mph if you pedal easily. Add 151 to 180 Wh for every 1,000 feet you climb at 10 mph on the throttle (range).

VTUVIA's product page lists 70 miles on pedal assist and 40 on the throttle: in the model, 70 miles uses the whole 720 Wh pack if you pedal easily at about 13.1 mph on level ground. VTUVIA's manual gives 15 to 20 miles "with minimal pedaling".

How fast does the E-Cozy go?

20 mph. VTUVIA ships it as a Class 2 trike, its class note says it "comes out of the box as a Class II electric trike", and the manual's parameter table gives "Max Speed: 20 MPH" (the class section).

Is the E-Cozy street legal, and which class is it?

VTUVIA delivers it as a Class 2 trike, with pedal assist and a throttle that stop at 20 mph. On its printed 750 W, throttle, 20 mph, three wheels and 28.5-inch width, it sits inside the e-bike definition of 26 of 51 jurisdictions; 19 write "less than" or "fewer than" 750 watts, and your state decides where you may ride it (the class section).

What is an electric trike?

A three-wheeled bicycle with a motor and a battery: you pedal it, the motor helps, and on a Class 2 model like the E-Cozy a throttle can move it without pedaling. Federal law describes a low-speed electric bicycle as "a two- or three-wheeled vehicle", so a trike within its limits counts (the class section).

Is the VTUVIA E-Cozy good for seniors?

For many older riders it is: three wheels hold it up at every stop, you step through a 14.8-inch frame and sit back against a backrest. VTUVIA's window starts at 5'1", where the median inseam is 29.2 inches and 95 of every 100 riders that height clear the step by 12.9 inches or more; take the first turns slowly, since a trike corners differently from a bicycle (riding three wheels).

How powerful is the VTUVIA E-Cozy?

Its rear motor is rated at 750 W with a 1,200 W peak and 85 N·m, on a 48 V, 25 A controller, and turns both rear wheels through a chain and the differential. With 180 lb aboard, the motor alone holds 20 mph up a 4% grade and about 12.6 mph up 10% (the hills table).

What battery does the E-Cozy use?

A 48 V, 15 Ah lithium-ion pack, 720 Wh, which the manual shows unlocking with a key and lifting out of the frame. VTUVIA's table gives the charging time as "About 7 Hours" (the battery section).

Does the VTUVIA E-Cozy have a torque sensor?

Yes. VTUVIA's table lists a "Torque Sensor", its page calls it "V-Adapt™", and the manual reads "PAS: Torque Sensor System"; the assist rises as you push harder on the pedals (the motor section).

Does the VTUVIA E-Cozy have reverse?

Yes. Turn on the display, press the red button on the right handlebar until it beeps, and open the throttle to back up; press it again to go forward. One reviewer found it answered only with an assist level selected and the parking brakes released (brakes, reverse and the controls).

Does the E-Cozy have hydraulic brakes?

Yes, on all three wheels: a front caliper and a left and right caliper at the rear, on 180 mm rotors, plus a parking brake (the brakes section).

Does the VTUVIA E-Cozy have suspension?

A front fork with up to 60 mm of travel, and a seatpost with up to 50 mm on the $2,199 version only. VTUVIA's page sells the trike "Standard" or "With Suspension Seatpost" and notes the seatpost is "not included as standard equipment" on the $2,099 trike; our listing offers the same two versions at the same prices (fork, tires and gears).

What size tires does the E-Cozy use?

20 × 3.0 on all three wheels, CHAOYANG by the manual. They are narrower than the 4-inch tires on many trikes, and one reviewer welcomed them as "a little bit smaller a little bit lighter" (fork, tires and gears).

How much does the VTUVIA E-Cozy weigh?

95 lb with its rack and fenders, by VTUVIA's table and the manual. Plan on two people, a ramp or a hitch rack rated for a trike's weight and width (the weight section).

How much weight can the VTUVIA E-Cozy carry?

VTUVIA's table and the manual's parameter table give 450 lb in all; the manual's riding notes give "maximum load (including rider weight) 150Kg", about 331 lb. Loaded to 450 lb, the model's level 15 mph ride on the throttle comes to about 27 miles (the weight table).

Is the VTUVIA E-Cozy foldable?

Yes: VTUVIA's table says "Foldable Yes", and it folds to 41.3 × 26.8 × 34.3 inches. One reviewer's advice is to remove the seat first (weight, baskets and folding).

How do you transport an electric trike?

Fold it into a vehicle with a large opening, carry it on a hitch rack rated for a trike's weight and width, or tow it on a trailer. For the E-Cozy, plan on 95 lb, a folded 41.3 × 26.8 × 34.3 inches and 28.5 inches of width unfolded (the weight section).

Is an electric trike easier to ride than an e-bike?

At a stop and at walking pace, yes: you never balance it. In a corner it asks more care, because a trike does not lean, so slow down before you turn (riding three wheels).

What warranty does the E-Cozy have?

If something goes wrong with an E-Cozy you bought from us, you deal with us: send photos and your order number, and we handle the claim from start to finish. Under our refund policy, a bike that will not power on or charge, shows an error code or has a faulty part is covered, and if you ask, we will send you the terms for your E-Cozy in writing before you buy.

Is the VTUVIA E-Cozy worth it?

At $2,099 on our store (read October 5, 2026) with free contiguous-US shipping, you get a folding trike with a 14.8-inch step, a backrest, reverse, a rear differential, hydraulic brakes on all three wheels and two baskets. It suits you best from 5'1" to 6'3", riding errands and easy miles in a state that takes in a 750 W trike (the verdict).

Can I finance the E-Cozy?

Yes. On October 5, 2026, Shop Pay on our listing offered 12 payments of $189.45 a month at 15% APR for the $2,099 E-Cozy, $2,273.40 in total, along with 3- and 6-payment plans at the same APR.

Limitations of this review

Twenty-seven things this review cannot settle, set out so you can weigh them.

1. We sell this trike. Give the red flags the same weight as the green ones.
2. This review is specification-verified. Its figures come from VTUVIA's published pages and manual, statutes, our store record, the research the range and fit sections cite, and arithmetic shown on the page.
3. Each range figure is one steady ride: one speed on one grade, with no wind and no stops. Starts, stops, headwinds and soft ground all cost more.
4. A Bafang motor stands in for VTUVIA's. VTUVIA publishes the rating, the peak, the torque and the controller, and names no motor maker. On the early trike in the reviewer's walk-around the motor's label reads "CZJB 110D 48V750W", and CZJB's 2025 catalog lists the motor its trike-differential page recommends, the 110DZ, at an efficiency of at least 82%. At 82% instead of Bafang's 80% floor, the 15 mph throttle ride rises from 38 miles to 40.
5. VTUVIA prints no sprocket sizes for the motor's chain, so the model turns the motor at the wheels' own speed. Fitted instead so that a 180 lb rider just reaches 20 mph on the flat, the motor gives 37 miles at 15 mph on the throttle and holds about 13.4 mph alone up a 10% grade.
6. The rated-power reading is the model's. Read VTUVIA's 750 W on a comparable motor rated at 1,000 W instead, and the 15 mph throttle ride comes to 36 miles and the 20 mph ride to 26.
7. The wheel is not the E-Cozy's own. VTUVIA prints no wheel diameter and its side photograph holds no scale, so the model uses the 20 × 3.0 wheel measured on another maker's photograph, 21.53 inches; the size's nominal 21.98 inches leaves the 15 mph ride at 38 miles.
8. No field measurement of a trike's drag area was found. The model uses the upright cruiser riders' 0.640 m² and prints a second row one standard deviation up, 0.819 m², for a wider machine.
9. The model has no measured check at light motor load. Where your legs do most of the work, as in the steady-pedaling column at 15 mph, the figure rests on motor losses at a load for which neither Bafang's workbook nor any VTUVIA document read here prints an efficiency.
10. The differential's own losses are not counted. The model takes 2.3% for the motor's chain to the axle, the same as for the pedal chain, but no figure for the differential's gears and bearings was found, and the model treats the trike as one rolling mass on three tires.
11. No measured ride to an empty pack was found. The one independent ride review shows speeds, brakes, reverse and handling, on flat ground, and runs no range test.
12. The tire coefficient is a fat-tire median. No drum test of the CHAOYANG 20 × 3.0 was found, so the model uses the median of ten fat tires, bracketed by the lowest and the heaviest-rolling on the same drum.
13. The cold figures rest on one cell's laboratory data. VTUVIA names no cell maker for the E-Cozy, so the central line uses McMaster University's measured LG HG2, bracketed by other published cells.
14. VTUVIA prints two load limits, 450 lb in the table and the manual's parameter table, and 150 kg including the rider in the manual's riding notes; the weight table prints a row for each.
15. VTUVIA prints two top speeds, 20 mph in the manual and in a post on riding without pedaling, and 15 mph in a March 2026 post on trike safety; the page plans on 20.
16. VTUVIA prints three range figures, 70 miles on pedal assist, 40 on the throttle, and the manual's 15 to 20 miles with minimal pedaling on flat pavement; the third matches no steady level ride in the model.
17. The reviewer's trike was an early-production build, with a rigid fork, a twist throttle and a fixed stem where VTUVIA's table now lists a 60 mm fork, a thumb throttle and an adjustable stem, while its manual and control images show a twist grip; the observations quoted here are the reviewer's, on that build.
18. The saddle table measures from the pedal axle. VTUVIA prints its seat range from the floor and no crank length or crank-axle position, and the pedals sit forward of the seat, so the page cannot say whether the seat reaches a given rider's setting, only what that setting is.
19. VTUVIA's photograph could not place the saddle. Scaled to the 52.8-inch wheelbase, it read the overall length 5.2% long and showed the two rear wheels as one, so no saddle position, lean to the grips or hand load was measured.
20. The handlebar figures use VTUVIA's 33.5 to 41.3 inches, at stem settings VTUVIA does not state; the stem adjusts, so your bar may sit higher or lower.
21. The flat-foot figures set a barefoot inseam against the saddle's top height. Shoes, the saddle's width and the seat's slant all change what you feel at a stop.
22. The fit figures use the US Army's ANSUR II bodies: 6,068 soldiers aged 17 to 58, measured from 2010 to 2012, who are not the US public; your own inseam decides your row.
23. The 109% formula is a starting point. In 19 trained cyclists it put 55 to 65% inside the 25-to-35-degree knee range and the heel check 70%, so let your knee and heel settle the final height.
24. The jurisdiction screen reads definitions only, as our rule table, wheel-count readings and the statutes stood on October 5, 2026; it leaves passenger, age and local rules to each state, and Connecticut's wheel count could not be settled from its text.
25. The E-Cozy pages read here print no certification line. If your building, city or a rebate program asks for one, email us and we will request VTUVIA's documents in writing.
26. Some of VTUVIA's E-Cozy images may be composited, so each caption claims only what is in the frame and the colorway shown, and calls an image a photograph only where it is one.
27. The price and the stock were read on October 5, 2026; each can change, as can VTUVIA's stock and the Shop Pay terms.

The bottom line

For $2,099, the E-Cozy puts a 750 W rear motor with 85 N·m and a 720 Wh pack on a folding three-wheeled frame with a 14.8-inch step, a backrest, forward pedals, a rear differential, hydraulic brakes on all three wheels, reverse, a parking brake and two baskets.

With 180 lb aboard, it computes to about 38 flat miles at 15 mph on the throttle, or 55 with easy pedaling; every 1,000 feet of climbing on the throttle at 10 mph adds 151 to 180 Wh, and the motor alone holds about 12.6 mph up a 10% grade.

It does its best work under a rider from 5'1" to 6'3" who wants never to balance at a stop, runs errands and easy miles, takes the corners slowly, and lives in one of the 26 jurisdictions whose definition takes in its printed figures.

Through Shop Pay on our listing, it comes to $189.45 a month over 12 months at 15% APR.

Settle two things before you pay: your state's watt line and wheel count in the class section, and the doorway and the lift in the weight section. Send us your state and your inseam and we will check both before you order.

Image credit: every photograph and image of the E-Cozy on this page is VTUVIA's own, cropped and resized and never retouched. On the cover, the park path around VTUVIA's Pearl White studio photograph was generated with Nano Banana Pro on Playcut, the trike placed at one uniform scale with nothing on it redrawn or recolored, and the type was set in Playcut Brush as a hand-written SVG. The place shown is not a real location.

Source register

What each document behind this review supports.

T1 is the record itself from whoever issued it: a statute, the maker's product pages, record, manual and posts, and our own store record.

T2 is a party's own publication about its product or its measurements: the motor maker's workbook, published research, and a reviewer's recorded ride.

Expiry conditions

Re-read this page if VTUVIA changes the E-Cozy's price, specification, motor rating, peak, torque, pack, range figures, speed, class note, weight, capacity, size guide, rider window, folded size, FAQ or manual, or if it publishes a crank length, a wheel diameter, the motor's maker or speed, the sprocket sizes or a certificate number for the E-Cozy.

Re-read it as well if the price, the stock, the basket bag's price or the Shop Pay terms change on our store, if a recall is published naming VTUVIA, if a state changes its e-bike definition's watt line or wheel count, if California amends §§ 231, 312.5, 21204, 21212 or 21213, or if the BLM or the Forest Service changes its e-bike rules. Verified October 5, 2026.

References

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

1. VTUVIA, VTUVIA E-Cozy Electric Trike — product page (highlight strip, feature blocks, comfort and stability copy, Specs table, Size guide, the notes under the table, FAQs, as rendered for the US market). Retrieved September 28 and October 5, 2026. https://vtuviaebike.com/products/vtuvia-e-cozy-most-comfortable-electric-bike
2. VTUVIA, VTUVIA E-Cozy Electric Trike — product record, variant prices, availability and publication date. Retrieved September 28 and October 5, 2026. https://vtuviaebike.com/products/vtuvia-e-cozy-most-comfortable-electric-bike.json
3. VTUVIA, E-Bike Instructions: VTUVIA E-cozy User Manual (basic structure, printed page 2; main technical parameters, page 3; PAS and braking, page 14; maintenance, page 15; riding notes and battery, page 16; reverse, page 17; display, page 8). Retrieved September 28, 2026; page images read October 5, 2026. https://cdn.shopify.com/s/files/1/0048/2400/6785/files/VTUVIA_E-cozy_User_Manual.pdf
4. VTUVIA, Product feed (161 products, each with its type and publication date). Retrieved October 5, 2026. https://vtuviaebike.com/products.json?limit=250
5. VTUVIA, VTUVIA SF20/SF20H/SK20/FT2 Battery — product page. Retrieved October 5, 2026. https://vtuviaebike.com/products/sf20-battery
6. VTUVIA, Is an Electric Trike Safer Than a Bike for Seniors? (Stability, Balance & Safety Guide 2026) (March 5, 2026; dated March 22 above its text), "15 mph Max Speed". Retrieved September 29, 2026. https://vtuviaebike.com/blogs/news/electric-trike-vs-bike-seniors-safety
7. VTUVIA, Can You Ride an Electric Trike Without Pedaling? (September 11, 2026), "Maximum speed is up to 20 mph". Retrieved September 29, 2026. https://vtuviaebike.com/blogs/news/can-you-ride-an-electric-trike-without-pedaling
8. US Government Publishing Office, 15 U.S.C. § 2085 — Low-speed electric bicycles, subsection (b). Retrieved October 5, 2026. https://www.govinfo.gov/content/pkg/USCODE-2024-title15/html/USCODE-2024-title15-chap47-sec2085.htm
9. California Legislative Information, California Vehicle Code § 231. Retrieved October 5, 2026. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH&sectionNum=231.
10. California Legislative Information, California Vehicle Code § 312.5, subdivision (a). Retrieved October 5, 2026. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH&sectionNum=312.5.
11. California Legislative Information, California Vehicle Code § 21204, subdivision (b). Retrieved October 5, 2026. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH&sectionNum=21204.
12. California Legislative Information, California Vehicle Code § 21212, subdivision (a). Retrieved October 5, 2026. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH&sectionNum=21212.
13. California Legislative Information, California Vehicle Code § 21213, subdivision (a). Retrieved October 5, 2026. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH&sectionNum=21213.
14. Redtail eBikes, Three-limb e-bike definition screen of 50 states and the District of Columbia (watts with each statute's boundary word, top speed, throttle, wheel count, width) for the E-Cozy's printed figures. Run October 5, 2026. https://redtailebikes.com/blogs/journal/electric-bike-laws
15. Bureau of Land Management, 43 CFR § 8340.0-5 — Definitions, paragraphs (a)(5) and (j). Retrieved October 5, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8340/section-8340.0-5
16. Bureau of Land Management, 43 CFR § 8340.0-7 — Penalties. Retrieved October 5, 2026. https://www.ecfr.gov/current/title-43/subtitle-B/chapter-II/subchapter-H/part-8340/subpart-8340/section-8340.0-7
17. Forest Service, US Department of Agriculture, 36 CFR § 261.13 — Motor vehicle use. Retrieved October 5, 2026. https://www.ecfr.gov/current/title-36/chapter-II/subchapter-B/part-261/subpart-A/section-261.13
18. 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
19. US Consumer Product Safety Commission, Recall data, title, product-name and manufacturer queries for VTUVIA, Vtuvia and vtuviaebike, title and product-name queries for five spellings of E-Cozy, a full-field read of a 623-record corpus, and controls Ancheer / Specialized / Trek / Cozy. Retrieved October 5, 2026. https://www.saferproducts.gov/RestWebServices/Recall?format=json&RecallTitle=VTUVIA
20. Redtail eBikes, Shipping policy. Retrieved October 5, 2026. https://redtailebikes.com/policies/shipping-policy
21. Redtail eBikes, Refund policy. Retrieved October 5, 2026. https://redtailebikes.com/policies/refund-policy
22. Redtail eBikes, VTUVIA E-Cozy Electric Trike listing (price, availability, Shop Pay plan table) and VTUVIA Etrike Rear Basket Bag listing. Retrieved October 5, 2026. https://redtailebikes.com/products/vtuvia-e-cozy-trike
23. Bafang, BAFANG Workbook OEM 2021, the rear gear hub RM G062.750.D/DC (H550). Retrieved September 23, 2026. https://www.bafang-e.com/Uploaded/Labels/BAFANG%20Workbook%20OEM%202021.pdf
24. Martin, J. C., Milliken, D. L., Cobb, J. E., McFadden, K. L. and Coggan, A. R., Validation of a Mathematical Model for Road Cycling Power, Journal of Applied Biomechanics 14(3):276–291 (1998). Retrieved September 23, 2026. https://collections.lib.utah.edu/dl_files/b4/8e/b48ef26086091662c561e673d7bd990d77868437.pdf
25. Bicycle Rolling Resistance, Fat bike tire reviews (rolling-resistance table, 26 × 4.00, 12 psi). Retrieved September 25, 2026. https://www.bicyclerollingresistance.com/fat-bike-reviews
26. Tengattini, S. and Bigazzi, A., Physical characteristics and resistance parameters of typical urban cyclists, Journal of Sports Sciences 36(20):2383–2391 (2018). Retrieved September 23, 2026. https://civil-reactlab.sites.olt.ubc.ca/files/2022/11/Tengattini_2018_Physical-characteristics-and-resistance-parameters-of-typical-urban-cyclists.pdf
27. Samebike, CY20 Pro product page (size-and-fit photograph and wheelbase). Retrieved September 26, 2026. https://us.samebike.com/products/cy20-pro-portable-commuter-powerful-500w-electric-bike
28. Arango, I., Lopez, C. and Ceren, A., Improving the Autonomy of a Mid-Drive Motor Electric Bicycle Based on System Efficiency Maps and Its Performance, World Electric Vehicle Journal 12(2):59 (2021). Retrieved September 23, 2026. https://mdpi-res.com/d_attachment/wevj/wevj-12-00059/article_deploy/wevj-12-00059.pdf
29. Schmitt, M., Decker, S. and Doppelbauer, M., Measuring and Characterization of a Pedal Electric Cycle (Pedelec) on a Full System Test-Bench with Full Range Emulation of a Cyclist, EPE'19 ECCE Europe (IEEE, 2019). Retrieved September 23, 2026. https://publikationen.bibliothek.kit.edu/1000100371/50695920
30. Kollmeyer, P. et al., LG 18650HG2 Li-ion Battery Data and Example Deep Neural Network xEV SOC Estimator Script, Mendeley Data, V2 (McMaster University). Retrieved September 23, 2026. https://doi.org/10.17632/b5mj79w5w9.2
31. Samsung SDI, INR18650-25R specification. Retrieved September 23, 2026. https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/4628.130109_5F00_INR18650_2D00_25R-Cell-SPEC-_2800_3_2900_-_2800_1_2900_.pdf
32. Samsung SDI, INR18650-30Q data sheet. Retrieved September 23, 2026. https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/INR18650_2D00_30Q_5F00_datasheet.PDF
33. Samsung SDI, INR18650-35E technical information. Retrieved September 23, 2026. https://enerpower.de/wp/wp-content/uploads/2016/03/Technical_Information_INR18650-35E.pdf
34. Casado, A. et al., Journal of Power Sources (2025), low-temperature discharge measurements. Retrieved September 23, 2026. https://doi.org/10.1016/j.jpowsour.2025.236552
35. NOAA, NASA and US Air Force, U.S. Standard Atmosphere, 1976 (NOAA-S/T 76-1562). Retrieved September 23, 2026. https://ntrs.nasa.gov/api/citations/19770009539/downloads/19770009539.pdf
36. Bicycle Rolling Resistance, Rolling resistance and temperature test. Retrieved September 23, 2026. https://www.bicyclerollingresistance.com/specials/crr-temperature-test
37. Rothhämel, M., Rolling resistance of bicycle tyres and its temperature dependence, International Journal of Vehicle Design (2023). Retrieved September 23, 2026. https://www.inderscience.com/filter.php?aid=132317
38. eBike Reviews & Adventures, What it's really like to ride the Vtuvia E-Cozy (August 26, 2026), video and published audio, transcribed twice by machine and quoted where both readings agree. Retrieved October 5, 2026. https://www.youtube.com/watch?v=JErLiUausXk
39. VTUVIA, VTUVIA E-COZY Electric Trike Assembly Guide (August 13, 2026), video. Retrieved October 5, 2026. https://www.youtube.com/watch?v=MjG3v73WRfU
40. Brent McCluskey Unboxings, Budget-friendly Trike | VTUVIA FT2 Trike | Electric Trike Review (July 17, 2023), video. Retrieved October 5, 2026. https://www.youtube.com/watch?v=O_hDI2Wl_-A
41. Benson, J. and Parham, J. (NSRDEC), For good measure -- Natick releases raw data from Army-wide anthropometric survey, US Army (May 31, 2017), the ANSUR II survey of 2010 to 2012. Retrieved September 25, 2026. https://www.army.mil/article/188601/for_good_measure_natick_releases_raw_data_from_army_wide_anthropometric_survey
42. Peveler, W., Bishop, P., Smith, J., Richardson, M. and Whitehorn, E., Comparing Methods for Setting Saddle Height in Trained Cyclists, Journal of Exercise Physiology online 8(1):51–55 (2005). Retrieved September 25, 2026. https://www.asep.org/asep/asep/JEPonlineFEBRUARY2005_PevelerSaddle.doc
43. Peveler, W. W., Pounders, J. D. and Bishop, P. A., Effects of Saddle Height on Anaerobic Power Production in Cycling, Journal of Strength and Conditioning Research 21(4):1023–1027 (2007), PMID 18076230. Retrieved September 25, 2026. https://pubmed.ncbi.nlm.nih.gov/18076230/
44. Ferrer-Roca, V., Roig, A., Galilea, P. and García-López, J., Influence of Saddle Height on Lower Limb Kinematics in Well-Trained Cyclists: Static vs. Dynamic Evaluation in Bike Fitting, Journal of Strength and Conditioning Research 26(11):3025–3029 (2012), PMID 22190163. Retrieved September 25, 2026. https://pubmed.ncbi.nlm.nih.gov/22190163/
45. Priego Quesada, J. I., Pérez-Soriano, P., Lucas-Cuevas, A. G., Salvador Palmer, R. and Cibrián Ortiz de Anda, R. M., Effect of Bike-Fit in the Perception of Comfort, Fatigue and Pain, Journal of Sports Sciences 35(14):1459–1465 (2017), PMID 27490817. Retrieved September 25, 2026. https://pubmed.ncbi.nlm.nih.gov/27490817/
46. Slane, J., Timmerman, M., Ploeg, H. L. and Thelen, D. G., The Influence of Glove and Hand Position on Pressure over the Ulnar Nerve during Cycling, Clinical Biomechanics 26(6):642–648 (2011), PMID 21458120. Retrieved September 25, 2026. https://pubmed.ncbi.nlm.nih.gov/21458120/
47. Carahalios, A., An Analysis of the Bicycle-Rider Interface Forces in Stationary Road Cycling, M.S. thesis, University of Colorado (2015). Retrieved September 25, 2026. https://scholar.colorado.edu/downloads/70795789x
48. Clauser, C. E., McConville, J. T. and Young, J. W., Weight, Volume, and Center of Mass of Segments of the Human Body (1969). Retrieved September 25, 2026. https://ntrs.nasa.gov/api/citations/19700027497/downloads/19700027497.pdf
49. Changzhou Jiabo Machinery Manufacturing Co. (CZJB), Ebike Motor & Kit Product Catalogue 2025, the 110DZ rear motor (catalog page 26: efficiency at least 82%, maximum torque 80 N·m, reduction ratio 1:5.8). Retrieved October 5, 2026. https://czjb.com/wp-content/uploads/2025/06/2025-%E4%BD%B3%E5%8D%9A%E7%9B%AE%E5%BD%95.pdf
50. CZJB, Electric Tricycle Differential & Hub Motor Solution (trike differential page; the 110DZ as its recommended differential-compatible motor). Retrieved October 5, 2026. https://www.czjb.com/czjb-trike-differential-110d-hub-motor/
51. VTUVIA, 750W_Motor_1200W_Peak.webp, the motor image on the E-Cozy page. Retrieved October 5, 2026. https://vtuviaebike.com/cdn/shop/files/750W_Motor_1200W_Peak.webp?v=1786599152
52. VTUVIA, ecozy-rear-differential.webp, the rear differential image on the E-Cozy page. Retrieved October 5, 2026. https://vtuviaebike.com/cdn/shop/files/ecozy-rear-differential.webp?v=1784781719