how to install bafang mid drive conversion kit

How To Install A Bafang Mid-Drive Motor Kit: The Ultimate Guide

Installing a Bafang Mid-Drive Motor Kit can be a daunting task for those who are unfamiliar with the process. However, this guide will provide all the information you need to know in order to successfully install your mid-drive motor kit. Keep reading as we discuss step-by-step instructions, tips and tricks, and other helpful advice to get your Bafang Mid-Drive Motor Kit up and running in no time!

What is a Bafang Mid-Drive Motor Kit?

A Bafang mid-drive conversion kit is a type of electric bicycle motor that is installed in the middle of the bike frame, between the pedals. This placement allows for more natural power transfer and helps to distribute the weight of the motor evenly. Mid-drive motors are also known for being quieter and more efficient than other types of electric bicycle motors.

Installing a Bafang mid-drive motor kit is not a difficult task, but there are a few things that you will need to know before getting started. In this ultimate guide, we will walk you through everything you need to know about installing a Bafang mid-drive motor kit on your own bicycle.

Tools and Materials Needed for Installation

Installing a Bafang mid-drive motor kit onto your bicycle requires a few tools that you may already have in your home workshop. If not, they are easily acquired from any hardware store. You will need a torque wrench to ensure all bolts are tightened to the correct specifications. A hex key set is also required to remove and replace bolts on the motor housing unit.

In addition, you will need either a flathead or Phillips head screwdriver to attach the battery pack to the frame of your bike. An adjustable wrench is also helpful to have on hand in case you need to make any adjustments to the motor cables or chain ring. Finally, a crescent wrench can come in handy if you need to loosen or tighten the crank arms on your bike.

If you are not comfortable working with wires, it is recommended that you enlist the help of someone who is. If you choose to do the wiring yourself, wire strippers will be necessary to connect the motor cables to the battery pack. Zip ties can also be used to secure any loose wires and keep them from becoming tangled.

  • Tools and Materials Needed for Installation:
  • Torque wrench
  • Hex key set
  • Flathead screwdriver
  • Phillips head screwdriver
  • Adjustable wrench
  • Crescent wrench (optional)
  • Wire strippers (optional)
  • Zip ties (optional)
  • Loctite 243 (optional)
  • Grease (optional)

Step-by-Step Guide to Installing a Bafang Mid-Drive Motor Kit

  • Choosing the right Bafang conversion kit

Bafang offers several different motor kits, including the BBS01, BBS02, and BBSHD. Each of these kits has its own set of features and specifications that make them suitable for different types of bikes and riding styles. Before starting the installation process, it’s important to choose the right Bafang mid-drive motor kit for your bike.

  • Prep your bike

Before you start installing your Bafang mid-drive motor kit, you need to prep your bike. This includes making sure the frame is compatible with the motor, removing the bottom bracket, and attaching the motor mount to the frame. It’s also important to take into consideration the compatibility of the bottom bracket, as different Bafang kits have different bottom bracket compatibility. It’s recommended to consult the manual that comes with the kit to make sure you have the correct bottom bracket for your bike.

  • Install the motor

Once your bike is prepped, you can start installing the motor. This involves attaching the motor to the mount, connecting the wires, and adding grease to the gears. Make sure to follow the instructions manual provided with the kit, as it will provide detailed instructions on how to install the motor properly.

  • Install the battery

The next step is to install the battery. This involves attaching it to the down tube of the frame and connecting it to the motor. Make sure to properly secure the battery to the frame to prevent it from falling while riding.

  • Install the display

The final step is to install the display. This involves attaching it to the handlebars and connecting it to the battery. This display will give you all the information about the e-bike performance and the battery level.

  • Test the system

After all components are installed, it’s time to test the system. This includes checking the power levels, making sure the motor is functioning properly and all the wires are connected correctly. It’s important to test the system on a flat surface before going on a ride, to ensure the safety of the rider. Once everything checks out, it’s time to enjoy your new e-bike!

  • Adjust and fine-tune

Once you have taken your e-bike for a test ride, you may want to make some adjustments and fine-tune the settings. This includes adjusting the assist levels, setting the speed limit, and adjusting the pedal assist sensor.

  • Maintenance

Regular maintenance is important to ensure that your Bafang mid-drive motor kit continues to function properly. This includes checking the tightness of all bolts and connections, keeping the gears lubricated, and checking the battery level and charging it as needed.

  • Enjoy your ride

With your Bafang mid-drive motor kit installed and properly maintained, you can enjoy the benefits of an e-bike, such as increased speed and distance capabilities, and reduced physical strain while riding. Remember to always ride safely and responsibly.

Troubleshooting Common Issues During Installation of Bafang Motors

installing bafang e bike conversion kit

If you’re having trouble installing your Bafang mid-drive motor kit, don’t worry – you’re not alone. In this section, we’ll troubleshoot some of the most common issues that can occur during installation, so you can get back on track and finish your project.

One of the most common issues is incorrect wiring. Double-check your wiring diagram to make sure all of the wires are connected properly. If you’re still having trouble, try contacting Bafang customer service for assistance.

Another common issue is stripped bolts. This can happen if you try to install the motor without first lubricating the threads with anti-seize compound. If you encounter this problem, simply remove the offending bolt and apply a generous amount of compound before trying again.

If you’re having trouble getting the motor to fit in the frame, make sure that all of the spacers are in place and that the chainring is mounted correctly. Once everything is aligned, it should slide in easily.


Installing a Bafang mid-drive motor kit is a great way to upgrade your electric bike and take it to the next level. With our comprehensive guide, you should now have everything you need to understand what’s involved in the installation process and be ready to start transforming your ride! Whether you decide to do it yourself or opt for an expert installation service, we wish you all the best with your new exciting set-up. Happy riding!

1 thought on “How To Install A Bafang Mid-Drive Motor Kit: The Ultimate Guide”

  1. I purchased a Bafang motor kit and installed it on a SUN recumbent trike. The front wheel is 16″ and maybe it is set for being a 26″ therefore my speed is not accurate. also it is registering in k/ph.
    How do I change my settings? I tried watching u-tube and they go to fast for me. Is there a diagram or picture of the 0n/off switch so I can comprehend it better.
    James Lutz

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