The Onesport OT08 PRO Dual is a mountain e-bike with a 1728 Wh battery. That is the largest battery in its class. It is 106% above the median battery for MTB e-bikes. This bike suits riders who want maximum range and are willing to carry extra weight.

It is a standard pedelec with a 25 km/h top speed. The motor is a hub type with 65 Nm of torque. It weighs 39 kg, which is 14% above the class median. The price is 1515 USD, slightly below the median of 1554 USD.

What the numbers say

Figures are published specifications and a range estimate, not measurements.
SpecThis bikeMedian for its type
Battery1728 Wh840 Wh
Weight39 kg34.2 kg
Torque65 Nm80 Nm
Estimated range98 km49 km
Price1515 USD1554 USD

Questions people ask about the OT08 PRO Dual

How much does it weigh?

The OT08 PRO Dual weighs 39 kg. That is 14% heavier than the median MTB e-bike. You will feel the extra weight when lifting it or pushing it uphill.

How much torque does it have?

It has 65 Nm of torque. That is 19% below the class median of 80 Nm. Torque helps with acceleration and climbing, so this bike is less punchy than many peers.

What speed class is it?

It is a standard pedelec class. That means pedal assist up to 25 km/h. It has no throttle.

How far does it really go?

The manufacturer claims 180 km. MathBikes estimates 98 km, with a range band of 86 to 110 km. The estimate is 46% 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?

Running costs depend on electricity and maintenance. The battery is large, so charging costs more than smaller batteries. Use the cost calculator to compare. The warranty is not listed, so factor that into your decision.

Where it falls short

The OT08 PRO Dual is heavy and has below-average torque. At 39 kg, it is harder to transport and maneuver. The 65 Nm motor is 19% below the class median, so it may feel less responsive on steep climbs. The battery adds range but also weight.

Who should buy it

This bike is for riders who prioritize range above all else. If you need to cover long distances on one charge, the OT08 PRO Dual is a strong candidate. It is also for riders who do not mind extra weight.

  • You want the largest battery in its class, 1728 Wh.
  • You plan long rides and want an estimated 98 km range.
  • You are okay with a 39 kg bike and a hub motor.

Look elsewhere if you need strong torque for steep trails. Also consider other bikes if you need a throttle or a foldable frame. This bike has neither.