Bafang 750W 48V BBS02B Mid-Drive Electric Bike Motor Conversion Kit with Display

The Bafang 750W 48V BBS02B Mid-Drive Motor is our most popular motor! It comes with a screen of your choice at no extra cost, please remember this when comparing prices. We aim to offer the best value with UK stock and UK warranty.

The compact motor fits subtly in front of your pedals and delivers powerful torque, high efficiency, and low noise. For installation details, consult our fitting guide.

These motors, waterproofed for typical UK weather, to withstand rain, frost, snow, and mud, but are not meant for submersion in water.

If you wish to reprogram your controller, you can buy a USB programming kit HERE.

Key information:

• 25 amp controller (built into drive system) with upgraded IRFB3077 mosfets (i.e. reliable)
• Cadence sensing, not torque sensing
• Connection between battery and motor will require soldering
• Changing the connector will NOT invalidate your warranty
• Replacement cable brake levers with motor cutouts (Hydraulic cutout sensors optional extra)
• Bafang thumb throttle (may be used on both sides). The kit gives you pedal assistance and a throttle.
• LCD Display
• 44T/46T/48T/52T chain wheel – make your choice
• Replacement cranks (both sides)
• Speed Sensor and magnet
• Wiring harness

Can I fit this myself?

Connection between battery and motor will require soldering. These motors are supplied with bullet connectors and our batteries are supplied with XT90 connectors, you will receive the corresponding XT90 connector with your battery. Changing the connector will NOT invalidate your warranty.

If you require tools to take off your bottom bracket, pedal cranks and maybe split your chain, follow this link to purchase all of the tools. You will also require a fitting wrench which you can add as an option (above).

Will the 750W 48V BBS02B Mid-Drive Motor fit my bike?

This motor is designed to fit bikes with a bottom bracket of between 67mm and 73mm. The inner diameter of the bottom bracket should be 33.5mm. Most modern bikes sold in the UK meet this standard (but please check). We have a bottom bracket guide here.

What is the optional gear sensor for?

The gear sensor interrupts the motor when you change gear, and gives a smoother gear change.

How about the brakes?

The kit has a choice of replacement levers for standard brake cables, stick-on sensors if you have hydraulic brakes, or a combo for integrated units (where the brake lever and gear selector are integrated into one unit). Regardless of your system, these components cease the motor when braking, avoiding resistance. This is a key safety feature!

UK Legal Status

The Bafang BBS02B 750W 48V mid-drive motor is for off road use only in the UK.

Downloads / User Guides

DPC-18 User Guide

BBS02 installation guide