... 180 220 250Speed(km/h)≤25Fork size(mm)Rear/138/142Efficiency(%)≥80Reduction Ratio1:4.43Wheel size18"- ... GradeIP54 Also we are providing Ebike conversion kits BatteryLiMnLiFePo4 24V,36V,48V24V,36V,48V 7Ah,10Ah,16Ah7Ah,10Ah ... BMS in Rack,Tube,Lift,Frog styleController:34V,36V,48V Intelligent controllerCharger: AC110V-240V,2A safe ... create a greener way of life! 36v 250w electric wheel hub motor New design