Introduction: Here is brief introduction to our Aikema� geared front hub motor Aikema motor is a Small in size, light in weight, high in efficiency and smooth & quiet running.The front-drive motor is compatible with both disc or rim brakes,has a rated power of 250W,350W 500W� as well as42N.m,50N.m max. torque.SX75,SX85 Front Wheel� Motor 250W� Electric Bike� Conversion Kit� E-Bike� Kit,36V� Hub Motor.� drive system is ideal for light and stylish city eBikes.folding electric bicycle,urban cycling, It is more convenient to replace and repair than other motors in the installation position.SX 128 front motor 500W is built for the high power demands of the� US� market, not the highly restricted EU market,is compatible with standard 100mm fork dropout. An internal� 1:6� planetary gear with clutch is implemented.The gear reduction allows the motor to spin at a higher and more efficient rpm greatly improving the starting torque and hill climbing ability when compared with comparable Direct-Drive motors, whilst also being smaller and lighter than a comparable DD motor. The clutch offers minimal drag when not under power. As a lightweight motor developed by Aikema,the structural modification and performance optimization can fully realize its small and stable product characteristics and bring you a different riding experience. Specification: 75SX 28 Spoke Holes Front-drive High Speed E-Bike Hub� Motor Rated Power (W):200W Rated Voltage (DCV): 36V Max Torque(N.m):32 N.m Efficiency (%):â?¥80 Weight (kg): 1.2 O.L.D: 100mm Motor rpm: 201/260/328 RPM, or customized Noise Grade (dB):