Bafang BBS02B 36V 500W Mid Drive Motor Electric Bike Conversion Kit EBike DIY for Mountain Bike Road Bike, Optional 17.4Ah 21Ah Downtube Battery or No Battery

【Mid Motor System】BBS02B 36V 500W G340 M315 Series mid motor built-in speed sensor, max torque 100Nm, delivers more give a boost to to your ride. Light but strong and efficient. Suitable for mountain bike, road bike, commuter bike. Not recommend install it on Carbon Fibre bike in case of damage the frame. With three modes, Electric Mode, Pedal Assist mode and Normal Bike, meets day-to-day commuting needs
【Installation Requirement】Fits for V Brake and Disc Brake, not fits for Coaster Brake. Only suitable for Drive Chain System, not fits for Drive Belt System. Compatible with frames with 68-73MM bottom bracket length, the inner diameter of bottom bracket within 34-36mm. Please download the document of bottom bracket(Compatibility Guide) and downtube battery size diagram(Size Guide) on the product page, easy to check if bafang mid motor fits for your bike, no wasting your time
【Easy Installation】All necessary installation accessories are included, aside from axle removal tool. Please refer to the picture of the package list. Include the user manual to teach you how to install, easily found some installation videos on social media. Will send mechanical brake levers for V Brake as default, if need hydraulic brake sensors for Disc Brake, leave us a message about your requirements. 36T chainwheel without chain guard may also be selected, but original sprocket is highly beneficial
【Service To be had】No worried about delivery days. No extra taxes. We have tech give a boost to in UK. 24 hours online service
【Notice to Customers】Mid motor kits requires display to work properly, just Make a selection your favourite display in Color selection. Make a selection BBS 44T/46T/48T/52T chainwheel in Size selection, the package does not include the battery and charger. The package does not include the gear shift sensor, it wish to be purchase one by one(Can install gear shift sensor or nor, does not have an effect on the normal operation of the motor)