Freewheel Electric 250W Geared Motor Using 16 Teeth Bicycle Flywheel Sprocket Electric Controller And Throttle Handle Key SwitchThis item is a 250W brush DC motor and a controller, a throttle handle and a key switch.This kit includes:1). 1 x 250W brush motor (with 16T freewheel sprocket)2). 1 x motor controller with fuse wire3). 1 x throttle handle4). 1 x key switch5). some connectors------------------------------------This motor is a geared motor that with a reduction gearbox, its output speed is slow but its torque is big, so it does not good at run fast.Usually we use it on the bicycle or cart.This motor uses a freewheel sprocket, it fits the single-speed bicycle chain 1/2"x1/8", this freewheel sprocket rotates clockwise, for example, when this motor is mounted on a bike left side, it can drive the bike go forward.If you do not know what motor you should use, please feel free to contact me.This controller comes with a fuse wire and 3 fuses, if you burn 1 fuse, you'd better note what makes it burnt and avoid this happen again, or please feel free to contact me for help.Motor Specification:Model: MY1016Z2Voltage: 24V / 36VOutput: 250 WattType: Brushed gear reductionSprocket: 16 Tooth freewheel sprocket that fits bicycle chain 1/2"x1/8"Motor net weight: 2.5 KGController:Fuse wire:Throttle handle:Key switch: