... rim special for e-bike· Motor Specifications: 36Vdc/500W/320rpm or 48V/1000W/430rpm· Quiet and Reliable Brushless Motor · Box Dimensions ... BLM dc motor)200w ,250w 350w,,500w 200w, 250w ,350w 500w, 750w 200w ,250w ,350w,500w ,1000w Wheel size 16",18",20",24 ... 4-6 hours Controller Intelligent brushless.(200w,250w,350w,500w,750,1000w)PAS1:1 intelligent pedal assistant systemThrottle Twist intelligent speed ...