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With an integrated speed sensor, this mid-drive motor, which is compatible with a 68-120mm bottom bracket, has a rated power of 250W(68-73mm),350W(68-73mm),500W(68-73mm),750W(68-73mm),1000W(68-120mm), a reduction ratio of 1: 21.9 and the maximum torque from 80N.m-160 N.m, will provide the rider with great explosive force when starting the system. Highly strong and efficient, this motor greatly enhances riding joy and is suitable for mountain bikes and sand bikes which are the favorites of riders who love challenges as well as transport bikes.
Top Speed: 25-35km/h base on 28inch wheel
Battery Life: Over 800 Charges
Charge Time: 5 Hours