feifayzx FX20 Dual Motor Fat Tire Electric Bike
- Maximum Weight Recommendation: 550 pounds
- Wheel Size: 20 inches
- Lithium Battery Energy Content: 960 Wh
- Electric Assist Type: hub motor
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A retro-styled commuter ebike with UL-certified battery safety and reviewer-confirmed range close to 50 miles, a reasonable pick for daily commuting on mixed terrain.
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ASIN: B0G8X1LLG5Model: FX20Category: Electric Bicycles
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Overview
The feifayzx FX20 is a retro motorcycle-styled electric bike for adults, built around a 750W rated motor (1500W peak) with a stated top speed of up to 35 mph. It pairs a 48V 20Ah removable battery rated for up to 60 miles with 20x4 inch fat tires and 7-speed Shimano gearing.
The styling leans into a vintage motorcycle look rather than a typical mountain-bike-style ebike frame, paired with a bright LED headlight and a soft ergonomic saddle. It carries UL 2849 certification for the battery and electrical system, and the reported bought_past_month figure of 48 suggests steady recent sales. Buyers should treat the 60-mile figure as a pedal-assist maximum rather than a throttle-only number.
- 20x4 inch puncture-resistant fat tires
- Bright LED headlight for night visibility
- 48V 20Ah removable battery, 6-8 hour charge time
- 12-month warranty on battery, charger and key components
Who it's for
Suits adults wanting a stylish commuter ebike with real hill-climbing power and Shimano gearing for varied terrain. Less suited to riders who need a folding or ultra-lightweight bike, since this is a full-size fat tire build.
Pros and cons
- Reviewer-confirmed range near 50 miles even at 230 lbs rider weight
- UL 2849 certified battery and electrical system
- 7-speed Shimano gearing with hydraulic disc brakes
- Arrives 90 percent pre-assembled
- Manufacturer motor wattage figures vary between the title and spec listing
- Retro frame styling will not suit riders wanting a standard mountain bike look
Performance notes
The 48V 20Ah battery is rated to reach full charge in 6 to 8 hours, and the 7-speed Shimano drivetrain with hydraulic disc brakes is built for daily commuting rather than aggressive off-road riding.
Specifications
| Brand | feifayzx |
|---|---|
| Model | FX20 |
| Dimensions & fit | |
| Maximum Weight Recommendation | 550 poundshigher than 100% of 266 electric bicycles |
| Wheel Size | 20 inches |
| Capacity & performance | |
| Number Of Speeds | 7 |
| Bicycle Drivetrain Type | Hub Drive |
| Bicycle Gear Shifter Type | Trigger |
| Age Range Description | Adult |
| Power & efficiency | |
| Lithium Battery Energy Content | 960 Whhigher than 60% of 221 electric bicycles |
| Power Source | Battery |
| Construction & materials | |
| Wheel Material | Alloy Steel |
| Warranty & support | |
| Warranty Type | Limited |
| Other details | |
| Electric Assist Type | hub motor |
| Brake Style | Disc |
| Suspension Type | Dual Suspension |
| Bike Type | Electric Bike, Fat Tire |
| Derailleur Configuration | Rear |
| Is Assembly Required | Yes |
| Specific Uses For Product | Trail |
| Theme | Motorcycle |
Closest rivals on specs
Frequently asked questions
How far can the feifayzx FX20 travel on a charge?
The 48V 20Ah battery is rated for up to 60 miles with pedal assist, and one reviewer reported about 50 miles in real use.
Is the feifayzx FX20 pre-assembled?
It arrives about 90 percent pre-assembled, with the remaining setup covered by included instructions.
What safety certification does the feifayzx FX20 carry?
It meets UL 2849 standards for battery and electrical system safety.