QS90 72V IPM PMSM Mid Drive Motor


This motor is perfect for small electric motorcyles. This is the most compact version of the infamous 138 70h model. If you have a kids bike or a pocket rocket the qs90 might be right up your alley. With a small Diamater of only 4 inches, You can fit this motor in almost anything! Although this motor is tiny it is no slouch! This combo is capable of nearly 5kw! 



1pc X QS 90 1kW Mid drive motor  (tapered shaft with key) with 14t 428 sprocket

1pc X EM-50 QS Controller


Key Features 

  • Light weight and small dimension compared to other motors of similar power outputs
  • High Torque suitable for high performace high load situations such as climbing and racing
  • Supports regenerative braking
  • Proven reliability

QS90 (1000W) EM-50 Combo

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