... , Double wall alloy rimFree maintenance, Wide platform, China factory supply2: Voltage(V)DC 24 36 48 ... proof GradeIP543:All battery is with BMS BatteryLiMnLiFePo4 24V,36V,48V24V,36V,48V 7Ah,10Ah,16Ah7Ah, ... 16Ah4:Throttle: Twist or thumb throttle available5: Controller: 24V, 36V, 48V intelligent controller Charger: AC110V-240V, certificated ... : Aluminum brake bicycle engine kits/bike motor kit for ebike