The Heybike Brawn is a mountain e-bike with a 720 Wh battery and a 40 Nm hub motor. Its most striking number is its weight: 22.7 kg, which is 19% below the median for its type. That makes it one of the lighter e-MTBs you can buy. It suits riders who want a capable off-road bike that is easier to lift and carry.
The Brawn is a fast-class e-bike, meaning it assists up to 45 km/h. It has no throttle and no step-through frame. You get a 720 Wh battery, which is exactly the median for its class. The price is 1499 USD, which is 21% below the median of 1899 USD.
What the numbers say
| Spec | This bike | Median for its type |
|---|---|---|
| Battery | 720 Wh | 720 Wh |
| Weight | 22.7 kg | 28.1 kg |
| Torque | 40 Nm | 80 Nm |
| Estimated range | 42 km | 42 km |
| Price | 1499 USD | 1899 USD |
Questions people ask about the Heybike Brawn
How much does the Heybike Brawn weigh?
The Brawn weighs 22.7 kg. That is 19% lighter than the median e-MTB, which is 28.1 kg. You will notice the difference when lifting it onto a rack or carrying it up stairs.
How much torque does the motor have?
The motor delivers 40 Nm of torque. That is half the median torque of 80 Nm for e-MTBs. Lower torque means less punch for steep climbs and quick acceleration.
What speed class is the Heybike Brawn?
It is a fast-class e-bike, with assist up to 45 km/h. That is above the 25 km/h limit for standard e-bikes. Check your local rules before riding on public roads.
How far does it really go?
The manufacturer claims 105 km of range. MathBikes estimates 42 km, with a band from 37 to 47 km. That estimate is 60% below the claim. The estimate comes from a reference ride, not from a test.
What does it cost to run?
The purchase price is 1499 USD. Running costs depend on electricity, maintenance, and parts. Use the cost calculator to see your yearly total. The warranty is not published, so factor that into your decision.
Where it falls short
The Brawn's main weakness is its motor torque. At 40 Nm, it is 50% below the median for its type. That makes it less suited for steep, technical climbs where high torque matters. The estimated range of 42 km is also modest for a 720 Wh battery, though it is level with the class median.
Who should buy it
The Heybike Brawn fits riders who prioritize a light frame and a lower price over raw power. It is a good choice for mixed terrain where you can pedal along with the motor. You get a solid battery and a reasonable estimated range for the class.
- You want an e-MTB that is easy to lift and transport.
- You ride mostly flat or rolling trails, not steep climbs.
- You want a fast-class e-bike without paying a premium.
Look elsewhere if you need high torque for serious off-road climbing. Also consider other options if you want a throttle or a step-through frame. The Brawn makes clear choices, and they are not for everyone.
