Model:qswxk-front Voltage:24v or 36v Speed:24 km/h Power:150w, 200w, 250w Wheel size:26", 28" Weight:2.8kg Nameú¦permanent magnet brushless high speed dc motors for electric bicycles Application: front-driving motor (can be fixed with disc brake) Standard applicability: front fork size is 100 mm, this motor can be used for all e-bike and all kinds assistant system . Weight: 2.8kg.