Vivi 27.5 Inch Electric Mountain Bike 750W
- Maximum Weight Recommendation: 330 pounds
- Wheel Size: 27.5 inches
- Lithium Battery Energy Content: 499 Wh
- Wattage: 500 watts
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Most owners get a reliable, long-range electric mountain bike for the price, but check the front rotor and rear wheel for shipping damage on arrival since customer support by phone is hard to reach.
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ASIN: B0FNJV14VSModel: AMAK00017Category: Electric Bicycles
More from this brandAll Vivi electric bicyclesOverview
Vivi's electric mountain bike pairs a 500W motor, listed as peak 700 to 750W, with a 48V 10.4AH battery on a 27.5 inch frame, rated for up to 50 miles and offering 21 speeds across 5 ride modes. It carries SGS certification to UL2849.
A handful of units arrived with a bent front disc rotor or a bulge in the rear wheel, and getting through to customer support by phone was a recurring frustration, with calls routed to voicemail during listed business hours.
- 500W motor, peak up to 750W, 48V 10.4AH battery
- Up to 50 miles range across 5 ride modes
- 27.5 inch tires, 21-speed drivetrain
- SGS certified to UL2849
Who it's for
Fits riders who want an affordable electric mountain bike for mixed road and light off-road use, including beach or trail paths, and are comfortable checking for minor fit issues on arrival. Less suited to buyers who need dependable phone support if something goes wrong.
Pros and cons
- Front disc rotor arrived bent on at least one unit
- Rear wheel reported with a bulge causing a thump on rotation
- Missing front and rear fenders on one order
- Phone customer support difficult to reach
Performance notes
The 500W motor, peaking up to 750W, and 48V battery are rated for 22 to 50 miles depending on mode, with 21 speeds and 5 ride modes, full electric, pedal-assist, manual, cruise, and walk-assist, to adjust for terrain. One long-term rider logged 900 miles of moderate trail use without mechanical issues, while another described the ride as heavy and wobbly compared to other e-bikes they'd owned.
Specifications
| Brand | Vivi |
|---|---|
| Model | AMAK00017 |
| Dimensions & fit | |
| Maximum Weight Recommendation | 330 pounds |
| Wheel Size | 27.5 incheshigher than 97% of 409 electric bicycles |
| Capacity & performance | |
| Number Of Speeds | 21 |
| Bicycle Drivetrain Type | Chain Drive |
| Bicycle Gear Shifter Type | Trigger |
| Age Range Description | Adult |
| Power & efficiency | |
| Lithium Battery Energy Content | 499 Whlower than 73% of 221 electric bicycles |
| Wattage | 500 wattslower than 70% of 197 electric bicycles |
| Power Source | Electric Motor |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Wheel Material | Aluminum |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 1 year |
| Warranty Type | Limited |
| Other details | |
| Electric Assist Type | pedal assist |
| Brake Style | Disc |
| Suspension Type | Front |
| Bike Type | Electric Bike |
| Derailleur Configuration | Rear |
| Is Assembly Required | Yes |
| Specific Uses For Product | Trail |
| Intended Riding Terrain | Mountain Terrain, Unpaved Trails |
Closest rivals on specs
Frequently asked questions
Can this bike handle sand or off-road riding?
Yes, one reviewer described riding it on both road and beach sand, noting it performed well in both settings.
Is customer support easy to reach?
Not by phone, according to at least one reviewer who reported calls going to voicemail during listed open hours.