Electric Bike for Adults 20" Fat Tire 1300/1800W Peak Motor 52V 13/18.2AH Removable…
- Electric Bicycle
- 20 inches
- 330 pounds
- 750 watts
- More reviewed than 62%
Several owners call it an easy, comfortable ride for casual use, but enough buyers received defective tires, controllers or handlebar hardware that a careful inspection on arrival is worth the time.
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How it ranks among the 478 electric bicycles we track
3.7★ across 26 Amazon ratings, Bayesian-smoothed toward the category average.
26 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 478 electric bicycles we track - how the scorecard works · full electric bicycles data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 21, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Folding fat tire electric bike from Gokeep, model USJX-L20A-G, built with a 20x3.0 fat tire, height-adjustable seat and a removable 52V battery.
The spec sheet lists a 750W brushless motor with 1300W peak power, while the title advertises 1300/1800W peak figures, so treat exact wattage as depending on configuration rather than a single fixed number. The folding steel frame is rated for up to 330 lbs and packs down to about 40 x 18 x 32 inches for storage or transport.
- 20x3.0 fat tires, front fork suspension
- 52V 13 or 18.2Ah removable battery, 35-86 mile PAS range
- Folding steel frame, 330 lb max weight capacity
- Shimano 7 speed, height-adjustable seat, front basket
Who it's for
Riders over about 50 or shorter in stature who want light pedal assist for local errands and appreciate a height-adjustable seat, and who are willing to inspect assembly closely given the range of hardware complaints below.
What buyers say
From Amazon customer reviews.
Multiple buyers over 50 or of shorter stature call it comfortable and easy to operate with good acceleration and speed for the price, but several owners describe receiving a bike with a tire that would not seat on the rim, a failed controller including on a second unit bought after the first, or a handlebar riser that did not match the included instructions.
Strengths and trade-offs
Drawn from this product's published specifications.
- Height-adjustable seat suits multiple riders on one bike
- Removable battery with dual charging methods
- Folds down for storage or transport
- Front basket and rear rack accommodate cargo
Performance notes
The 52V 13 or 18.2Ah removable battery is rated for a 35 mile pure-electric range or up to 86 miles with pedal assist, recharging in 5-8 hours. The front fork suspension and 20x3.0 fat tires are built to smooth out rougher pavement and light trail use, and the 180mm disc brakes are sized for the bike's fat tire footprint, though braking and tire quality is exactly where more than one buyer ran into problems.
Specifications
| Brand | Gokeep |
|---|---|
| Model | USJX-L20A-G |
| Dimensions & fit | |
| Wheel Size | 20 inches |
| Maximum Weight Recommendation | 330 pounds |
| Item Weight | 88.2 pounds |
| Size | Large |
| Wheel Width | 3 inches |
| Capacity & performance | |
| Bicycle Gear Shifter Type | Thumb |
| Bicycle Drivetrain Type | chain drive |
| Number Of Speeds | 7 |
| Age Range Description | Adult |
| Power & efficiency | |
| Wattage | 750 watts |
| Power Source | Battery |
| Construction & materials | |
| Frame Material Type | High Carbon Steel |
| Wheel Material | High Carbon Steel |
| Color | Green-1300W 53V 13Ah |
| Included components | |
| Unit Count | 1 |
| Included Components | Basket, Battery, Charger, Tool Kit, User Manual |
| Warranty & support | |
| Warranty Type | Limited |
| Warranty Description | 1 year |
| Other details | |
| Bike Type | Electric Bike |
| Suspension Type | Dual |
| Is Assembly Required | Yes |
| Intended Riding Terrain | Mountain Terrain, Paved Roads, Unpaved Trails |
| Model Year | 2025 |
| Additional Features | Adjustable Seat, Dual Disc Brake, Foldable |
| Brake Style | Dual Disc Brake |
| Specific Uses For Product | Mixed Terrain |
| Style Name | Folding |
Other Gokeep electric bicycles
How it compares
This product against the closest alternatives we track in electric bicycles.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Electric Bike for Adults 20" Fat Tire 1300/1800W Peak Motor 52V 13/18.2AH Removable…This product | 3.7 / 5 | 26 | 3.6 / 5 |
| Wooken Electric Bike for Adults with 500W MotorWooken | 4.4 / 5 | 312 | 4.1 / 5 |
| TotGuard Electric BikeTotGuard | 4.4 / 5 | 286 | 4.1 / 5 |
| ANCHEER 14" Folding Electric Bike for TeensAncheer | 4.2 / 5 | 329 | 4.0 / 5 |
| Gotrax 16" Folding Electric BikeBrand | 4.4 / 5 | 555 | 4.0 / 5 |
Similar electric bicycles from other brands
Questions about the Gokeep USJX-L20A-G
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is the real motor power, 750W or 1300W?
The spec sheet lists a 750W brushless motor with 1300W peak output, while the listing title advertises higher peak figures, so the exact number may depend on the configuration purchased.
How far will it go on a charge?
Gokeep rates it for up to 35 miles on pure electric power and up to 86 miles with pedal assist, varying with terrain and rider weight.
Does it fold for storage?
Yes, the high carbon steel frame folds to about 40.2 x 17.7 x 31.5 inches and weighs about 75 lbs.