Description The Bafang 36V BBS01 300w is perfect for fast commuting or technical trail riding. Also ideal for bikes with internal hub gears or small or special wheels.  A mid mount motor drives through the bikes gears making the very most of the road legal 300w motor giving very high climbing torque and fantastic top speed. High torque 300w mid drive motor Fits 68 to 73mm bottom bracket LCD display with battery and trip data Integrated controller with pedal start and throttle start IP 67 waterproof connectors Assisted speed up to 40km/h (adjustable) Lighting Plugs Includes Gear shift sensor Throttle Cut-off brake levers Main loom Speed sensor Mounting hardware Cranks Stock 44T sprocket and cover