Vivi ACE01 Fat Tire Electric Mountain Bike
- Maximum Weight Recommendation: 330 pounds
- Wheel Size: 26 inches
- Size: 26 Inches
- Lithium Battery Energy Content: 720 Wh
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B0D91XHNYJModel: ACE01Category: Electric Bicycles
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Overview
Vivi's ACE01 is a fat-tire electric mountain bike that leans on a torque sensor for pedal assist, backed by a 48V 15Ah battery and hydraulic disc brakes.
The listing's power figures are worth reading carefully: the title cites a 1500W peak motor while the bullet specs describe the rated output as 750W, so treat 1500W as a burst figure rather than sustained power. Multiple riders over 250 lbs reported the bike handling their weight and hills without strain.
- 48V 15Ah removable battery, 21700 cells
- 26 x 4.0 inch fat tires
- 5 ride modes including throttle and cruise control
- 330 lb rider capacity, adjustable seat height
Who it's for
This suits riders wanting a fat-tire e-bike for mixed terrain, gravel, snow, or light trail, with a natural-feeling pedal assist, including larger riders up to the 330 lb rated capacity. Less suited to anyone who needs sustained 1500W output rather than a peak burst figure.
Pros and cons
- Torque sensor gives smooth, natural pedal assist
- Strong hill climbing reported by heavier riders
- Good range, around 60 miles at low assist
- Handled snow, gravel, and light trail riding well
- 1500W is a peak figure; rated output is 750W
- Occasional reports of headlight or minor part failures
Performance notes
The 48V 15Ah battery is rated for 40-60 miles, and one rider logging nearly 500 miles reported around 60 miles per charge on the lowest assist level. Dual hydraulic brakes and an adjustable front suspension fork handle the extra weight of the 26 x 4.0 inch fat tires, and the aluminum frame supports riders up to 330 lbs with an adjustable seat for riders from 5'3 to 6'5.
Specifications
| Brand | Vivi |
|---|---|
| Model | ACE01 |
| Dimensions & fit | |
| Maximum Weight Recommendation | 330 pounds |
| Wheel Size | 26 incheshigher than 63% of 409 electric bicycles |
| Size | 26 Incheshigher than 63% of 98 electric bicycles |
| Wheel Width | 4 inches |
| Item Weight | 72 pounds |
| Capacity & performance | |
| Number Of Speeds | 7 |
| Bicycle Drivetrain Type | Derailleur |
| Bicycle Gear Shifter Type | Trigger |
| Age Range Description | Adult |
| Power & efficiency | |
| Lithium Battery Energy Content | 720 Wh |
| Wattage | 750 watts |
| Power Source | Electric Motor |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Wheel Material | Rubber |
| Color | Green |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Electric Assist Type | Torque Sensor |
| Brake Style | Disc |
| Suspension Type | Front |
| Derailleur Configuration | Rear |
| Is Assembly Required | Yes |
| Style Name | Standard |
Closest rivals on specs
Frequently asked questions
Is the Vivi ACE01 motor 750W or 1500W?
The listing title cites 1500W as a peak figure while the detailed specs list the rated motor output at 750W.