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 model is capable of over 5kw Bursts! 
 
Includes:
1pc X QS 90 1kW Mid drive motor  (tapered shaft with key) with 14t 428 sprocket
1pc X EM-50 QS Controller
1pc X Z6 Throttle
 
Option Available Upon Selection:
1pc X DKD Display
 
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