The Fafrees F20 Ultra Upgrade is a mountain bike e-bike with a 1200 Wh battery. That is 43% above the median for its type. It is also heavy at 40 kg. This bike suits riders who want long range and are not worried about carrying it.
The motor is a hub motor with 79 Nm of torque. Top speed is 25 km/h, which is standard for a pedelec. It is not foldable and has no throttle. The price is 1954 USD, which is 26% above the median for its type.
What the numbers say
| Spec | This bike | Median for its type |
|---|---|---|
| Battery | 1200 Wh | 840 Wh |
| Weight | 40 kg | 34.2 kg |
| Torque | 79 Nm | 80 Nm |
| Estimated range | 68 km | 49 km |
| Price | 1954 USD | 1554 USD |
Questions people ask
How much does it weigh?
The Fafrees F20 Ultra Upgrade weighs 40 kg. That is 17% above the median weight of 34.2 kg for its type. It is a heavy e-bike, so you will feel it when lifting or carrying it.
How much torque does it have?
The motor delivers 79 Nm of torque. That is 1% below the median torque of 80 Nm for its type. It is a hub motor, so the torque is decent for hills but not class-leading.
What speed class is it?
It is a standard pedelec class, meaning pedal assist up to 25 km/h. It has no throttle. You must pedal to get motor support.
How far does it really go?
The manufacturer claims a range of 80 km. MathBikes estimates the range at 68 km, which is 15% below the claim. The estimate comes from a formula, not a test. You can adjust the inputs with the range calculator.
What does it cost to run?
The purchase price is 1954 USD. Running costs depend on electricity, maintenance, and parts. The warranty is not listed, so you cannot know coverage. Use the cost calculator to estimate long-term costs.
Where it falls short
The Fafrees F20 Ultra Upgrade is heavy. At 40 kg, it is 17% above the median. That weight makes it hard to carry upstairs or load onto a rack. It also has no throttle, so you must always pedal. If you need a bike you can lift easily, this is not it.
Who should buy it
This bike is for riders who want maximum range and do not need to carry the bike often. It is also for those who prefer a simple hub motor and do not want a throttle. If you fit that profile, the F20 Ultra Upgrade could be a good match.
- You ride long distances and want a battery that outlasts most bikes.
- You have a place to store a heavy bike and do not need to lift it often.
- You are comfortable pedaling at all times and do not need a throttle.
Look elsewhere if you need a light bike for commuting with stairs or public transport. Also consider other options if you want a throttle or a longer warranty. The F20 Ultra Upgrade is a niche choice for range-focused riders.
