Vivi MT20UL Foldable Fat Tire Electric Bike
- Wheel Size: 20 inches
- Suspension Type: Rear
- Bike Type: Electric Bike
- Frame Material Type: Aluminum
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B0GWMFY3RRModel: MT20ULCategory: Electric Bicycles
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Overview
A foldable electric bike with 20x3.0 fat tires, a detachable 48V 499.2Wh battery and a 750W peak motor, certified to UL2849 safety standards.
Vivi pairs dual disc brakes with a front suspension fork and lists a range up to 50 miles in pedal-assist mode. The seat height and handlebar both adjust, and the frame folds down for trunk storage.
- 20x3.0 inch all-terrain fat tires
- 48V 499.2Wh detachable battery
- 750W peak motor, UL2849 certified
- Up to 50 miles range in pedal-assist mode
Who it's for
Suits adults and seniors wanting a comfortable, foldable commuter or recreational ebike, including riders with arthritis who benefit from the cruise control feature one reviewer mentioned. Less suited to riders chasing high top speed, since this model tops out at 20 mph.
Pros and cons
- Adjustable seat and handlebar suit different riders
- Folds for trunk storage or camping trips
- Cruise control eases use for riders with hand arthritis
- Top speed capped at 20 mph
- Quick acceleration takes some getting used to
Performance notes
The 500W motor (900W peak) combines with the detachable 48V 10.4Ah battery for 22-25 miles in pure electric mode or up to 50 miles with pedal assist, recharging in 4-6 hours. Dual disc brakes and the front suspension fork are meant to keep handling controlled on pavement and light off-road use.
Specifications
| Brand | Vivi |
|---|---|
| Model | MT20UL |
| Dimensions & fit | |
| Wheel Size | 20 inches |
| Capacity & performance | |
| Number Of Speeds | 7 |
| Age Range Description | Adult |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Other details | |
| Suspension Type | Rear |
| Bike Type | Electric Bike |
| Additional Features | LCD-Display |
Closest rivals on specs
Frequently asked questions
How far can the Vivi MT20UL travel on a charge?
Up to 22-25 miles in pure electric mode or 44-50 miles with pedal assist, per the listing.
Is this ebike foldable?
Yes, it folds down for storage in a car trunk or small space.
Is it safety certified?
Yes, it carries UL2849 certification (SGSNA/24/SZ/00183).