BAFANG BBS01B BBS02B Ebike Motor Mid Drive Kit 250W 350W 500W Electric Bike Conversion Kit BBS01 BBS02 Bicycle Engine BB 68-73mm

About this item

🚲【Universal Compatibility】Bafang BBS01B Mid drive kit is compatible with a wide range of bikes, including mountain bikes and road bikes. This kit is designed to fit a standard 68-73mm (length) and 34-36mm (internal diameter) bottom bracket.

🚲【Powerful and Reliable Motor】The BBS01 250W motor has a maximum torque of up to 80 N.m, making it perfect for climbing hills and reaching speeds of over 25-32km/h on the flats and much faster down hills. It's a great item for anyone who loves to ride, including your spouse or elderly family members

🚲【Easy Installation & Riding Modes】Our kit comes with an installation video and instruction manual to make installation a breeze. You can choose from three riding modes: E-bike & Pedal Assisted bicycle and Push assit bicycle. With this BAFANG ebike conversion kit, you can build your own E-bike and never worry about traffic jams again. Plus, it's economical and environmentally friendly

🚲【Complete Accessories】Our kit comes with most the necessary accessories, including the bafang Mid-drive motor, brake lever or hydraulic brake sensor cables, thumb throttle, chainring wheel, crank, LCD display, speed sensor, 1T4 wire, locknuts, wrench, and an ebike headlight (in default)

🚲【Local Service Center】Local warehouse in UK/EU.If you experience any quality problems within one year, our service center is available to provide technical support and maintenance.

How to know if this mid motor fit my

bike or not ?

Please use a caliper to measure the dimension of your bike's bottom bracket . The length should be 68-73mm . The inner diameter should be 34-36mm. And you can calculate if the chainring will touch your rear bike frame if your bike is differently designed.

How to choose a display ?

The main differences of the ebike displays are the interface , screen and holder size , specific function (check the display image above). If you want to quick decide which display should you choose, please check:

How to choose a chainring for ebike

conversion ？

For a normal pedal bike without electricity, (1) small chainring is more compatible with mountain bike which can help you climb easier. (2) big chaining is more suitable for city bike, road bike and foldable bike which can help you enjoy faster speed . However , now you are converting a bike to an ebike with motor, the size of chainring won't influence much because there is enough power for you to ride. When you install a mid motor on your bike , the bigger the chainring is , the faster the speed wil be. And please note that the chainring is more compatible with a bike ≤9 speed. If you are not sure which chainring you should use, you can consider the same teeth as your original chainring.

How to ask for brake sensors ?

The brake levers we sent default is with power cutting off funtion . If you want to keep your existing hydraulic brakes or mechanic brakes , please inform with your order ID or Contact us by email so that we can send you brake sensors with your BAFANG mid drive kit instead of brake levers .