Bafang Mid Drive Kit 750W 1000W BBS01B BBS02B BBS HD Electric Bike Conversion 48V 52V Ebike for Mountain Road With Optional Battery

Unmatched Compatibility & Performance : Compatible with bottom brackets of 68-73mm, 100mm, and 120mm in length, and internal diameters：33.5-36mm. Suitable for mountain, road, and commuter bikes. Note: Not suitable for carbon fiber frames or bikes with coaster brakes Powerful Mid Motor System: Choose from 750W with 160 N.m torque, up to 1000W with 160 N.m torque. Each kit offers outstanding riding performance. 3 flexible Riding Modes including Throttle Mode, Pedal Assist Mode, and Electric & Pedal Assisting Mode. Three modes to cover all your cycling needs Battery information： Each battery is equipped with a BMS protection board, which can ensure that the battery is charged equally. When the battery has problems such as overheating, low voltage, overcharging, etc., the power supply will be cut off. Ensure battery life and enjoy longer riding time. 48V 13AH：368*90*113mm，48V 17.5AH/48V 20AH：368*90*123mm. Inclusive Kit: Includes an optional Bafang motor, display (optional), chainring, speed sensor, brake levers or brake sensors, cranks, 1T4 cable, thumb throttle, installation screws, headlight, wrench, and crank Proactive Support: We communicate any potential issues via Amazon email. Our UK-based technical team stands by to provide expert guidance and solutions.We offer One year guarantee on Motor and Battery.