Tested vs claimed range
Claimed75 mi
Tested53 mi
Manufacturer overclaim: 30%MathBikes tested figure under mixed conditions
Full specifications
| Brand | Fafrees |
|---|---|
| Model | F20 Master |
| Type | Folding |
| Battery | 804 Wh |
| Motor torque | 40 Nm Hub motor |
| Weight | 50 lb |
| Claimed range | 75 mi |
| Tested range | 53 mi −30% vs claim |
| Price | $1,599 |
| Features | ✓ Foldable× Throttle× Step-through× Cargo× Fast (45 km/h) |
| Use cases | Commuting |
| Available in | USA |
⚡ Run the numbers
Run this bike through the calculators.
We've pre-filled each tool with this bike's spec. Adjust your own usage - terrain, weight, weekly km - to see the numbers for you, not the marketing brochure.
01 - Range
Real-world range
How far will it actually go with your weight, terrain & assist?
Pre-filled 804 Wh03 - TCO
Cost of ownership
Add a rival and compare over 5 years - charging, service, resale.
Pre-loaded as Bike A04 - Battery
Battery economics
When you'll need a replacement, and what each km really costs.
Pre-filled 804 WhSimilar bikes
You might also consider
⚡ Watch this bike
Get pinged when F20 Master drops in price.
Set a price-drop alert in one click. About twice a month tops.