The Fafrees F20 Ultra is a folding e-bike with a 1200 Wh battery. That battery is 79% above the median for its class. It also has 79 Nm of torque, which is 58% above the median. This bike is built for long rides and heavy loads.
It suits riders who want a folding bike that can cover serious distance. The estimated range is 85 km, which is 77% above the class median. But this capability comes with weight. At 37.5 kg, it is 31% heavier than the typical folding e-bike.
What the numbers say
| Spec | This bike | Median for its type |
|---|---|---|
| Battery | 1200 Wh | 672 Wh |
| Weight | 37.5 kg | 28.6 kg |
| Torque | 79 Nm | 50 Nm |
| Estimated range | 85 km | 48 km |
| Price | 1824 USD | 1068 USD |
Questions people ask about the Fafrees F20 Ultra
How much does it weigh?
The Fafrees F20 Ultra weighs 37.5 kg. That is 31% above the median for folding e-bikes, which is 28.6 kg. You will feel the extra weight when lifting or carrying it.
How much torque does it have?
It has 79 Nm of torque from a hub motor. That is 58% above the median of 50 Nm. This helps with hills and acceleration, but it is not a mid-drive motor.
What speed class is it?
It is a standard pedelec class, with a top speed of 25 km/h. It has no throttle. You pedal to get power.
How far does it really go?
The manufacturer claims 80 km. The MathBikes estimate is 85 km, which is 6% below the claim. The estimate comes from a formula, not a test. You can adjust assumptions with the range calculator.
What does it cost to run?
The price is 1824 USD, which is 71% above the median for its type. Running costs depend on electricity and maintenance. Use the cost calculator to see your situation.
Where it falls short
The Fafrees F20 Ultra is heavy. At 37.5 kg, it is 31% above the median for folding bikes. That weight makes it less portable, which is a key point for a folding model. Also, the warranty is not listed, so you cannot know the coverage.
Who should buy it
This bike is for riders who value range and power over portability. It is not for someone who needs to carry a bike up stairs. It is for someone who wants a folding bike that rides like a full-size commuter.
- You want a long estimated range of 85 km for commuting or errands.
- You need high torque of 79 Nm for hilly routes.
- You can handle a 37.5 kg bike and do not need to lift it often.
Look elsewhere if you need a light folding bike. The median weight is 28.6 kg, and this bike is well above that. Also, if you want a throttle or a step-through frame, this model does not have them.







