man removing crankset bike conversion

Bafang BBSHD 1000W Installation: DIY E-Bike Conversion Made Easy

Transforming your ordinary bike into a powerful electric machine with the Bafang BBSHD 1000W mid-drive motor is easier than you might think. This DIY e-bike conversion kit is designed with user-friendliness in mind, and with just a few basic tools and the right guidance, you’ll be hitting the trails or streets with electrifying power in no time.

Bafang BBSHD : Your Step-by-Step Guide to E-Bike Mid-Drive Power

By following these straightforward steps, you’ll be well on your way to enjoying the power, versatility, and fun of the Bafang BBSHD 1000W mid-drive e-bike conversion kit.


Before starting the setup, please make sure you have the following items.

  • Bafang BBSHD 1000W mid-drive motor kit (including battery, display, and all necessary components)
  • Compatible bike frame (check for standard 68-73mm/100mm/120mm bottom bracket width)
  • Essential tools:
    • Wrenches (various sizes)
    • Allen keys (hex wrenches)
    • Crank puller
    • Torque wrench
    • Optional: Bafang-specific tool kit
  • Clean, well-lit workspace
  • Patience and a can-do attitude!

Step 1: Prepare Your Workspace and Gather Tools

Before you begin your Bafang BBSHD e-bike conversion, create an optimal workspace and gather all the necessary tools for a smooth and successful installation.

  • Clear a clean, well-lit area where you can comfortably work on your bike.
  • Ensure you have wrenches, Allen keys (hex wrenches), a crank puller, and a torque wrench on hand.
  • If you don’t own these tools, consider purchasing a Bafang-specific tool kit or borrowing from a friend.
  • Additionally, double-check your bike frame’s compatibility, ensuring it has a standard 68-73mm bottom bracket width that can accommodate the BBSHD.

Step 2: Removing Existing Components

To make way for the new Bafang 1000W mid-drive motor, you’ll need to remove a few existing parts.

  • Pedals: Use a pedal wrench to remove the pedals from the crank arms.
  • Crank Arms: Use a crank puller to carefully remove the crank arms. If you’re unfamiliar with this tool, consult the instructions or find online tutorials.
  • Bottom Bracket: Remove the existing bottom bracket using a bottom bracket tool.

Step 3: Installing the Bafang BBSHD 1000W Mid-Drive Motor

Now for the exciting part – it’s time to install the heart of your electric bike!

  • Insert the Motor: Gently slide the BBSHD motor into the vacant bottom bracket shell. Ensure proper alignment and a snug fit. Utilize spacers if necessary to bridge any gaps between the motor and frame.
  • Secure the Motor: Employ the provided fixing plate, lock washer, and bolts to firmly secure the motor to the frame. Tighten the bolts to the specified torque using a torque wrench to prevent damage.

Step 4: Powering Up with Battery, Wiring, and Speed Sensor

It’s time to give your e-bike its juice, connect the essential components, and ensure accurate speed tracking.

  • Mount the Battery: Securely attach the battery to the bike frame, typically on the downtube or in a dedicated bag, using the included brackets. Choose a location that balances the weight distribution and protects the battery from damage during rides.
  • Connect the Wiring: Route the motor cable along the downtube, securing it with zip ties. Carefully connect the wiring harnesses from the motor to the battery, display, brake levers (if applicable for e-brake cut-offs), and throttle (if included). The BBSHD’s color-coded connectors simplify this process. Double-check each connection against the provided wiring diagram.
  • Speed Sensor Assembly: Assemble the speed sensor and mount it inside the chainstay (remove the adhesive backing). Attach the magnet to a spoke, with the smooth side facing the sensor, and ensure a 1-2mm gap between them. Secure the sensor with zip ties and connect it to the speedometer cable from the motor.

Step 5: Attaching Chainring & Crank Arms

To harness the BBSHD 1000W motor’s power and ensure smooth pedaling, connect it to your bike’s existing gears.

  • Secure the Chainring: Attach the chainring to the motor, ensuring it’s aligned correctly with your bike’s drivetrain for smooth power transfer.
  • Reattach Crank Arms: Slide the crank arms back onto the BBSHD’s spindle, ensuring they are correctly aligned. Tighten them securely using a crank arm tool or wrench.
  • Reattach Pedals: Screw the pedals back onto the crank arms, ensuring the correct pedal is on each side (left pedal has a reverse thread), and tighten with a forward rotation.

Step 6: Set Up the Bafang Display

Take control of your new e-bike with the Bafang display.

  • Mount the Display: Securely attach the LCD display to your handlebars where it’s easily visible while riding. If your kit includes a thumb throttle, mount it next to the grip for convenient access.
  • Connect Cables: Route the display cable along the handlebar and connect it to the corresponding port on the motor wiring harness. Ensure all cables are neatly organized and secured with zip ties to prevent any interference or damage. The BBSHD’s single cable design simplifies the connection between the motor and display, making it a clean and straightforward process.
  • Configure Settings: Connect the display to the wiring harness, power on the system, and refer to the display manual to personalize settings such as power levels, speed limits, and other features to suit your preferences.

Step 7: Fine-Tuning & Configuration

  1. Adjust Shifting: After installing the BBSHD, your derailleur might require minor adjustments to ensure smooth and precise gear changes.
  2. Configure Display Settings: Refer to the display manual to personalize settings such as power levels, speed limits, and other features to suit your preferences.

Step 8: Final Checks & Test Ride

Before you head out on your first bike outing, take a few moments to go through these final steps.

  • Double-Check: Ensure all connections are tight and secure, and all components are properly installed.
  • Test Ride: Take your newly electrified bike for a short, safe test ride to confirm everything is working as expected. Check for any unusual noises, shifting problems, motor cut-outs, or other issues. Make any necessary adjustments before hitting the trails or roads.

Congratulations! You have successfully transformed your bike into a powerful electric machine.

Additional Tips for a Successful Bafang BBSHD Installation

  • Read the Manual Thoroughly: Before you start, carefully read the Bafang BBSHD 1000W manual. It contains valuable information about the installation process, wiring diagrams, and troubleshooting tips.
  • Watch Instructional Videos: Supplement the manual with online videos demonstrating the installation process. This can be especially helpful if you’re a visual learner.
  • Use Dielectric Grease: Apply dielectric grease to all electrical connections to prevent corrosion and ensure a reliable connection.
  • Secure Cables with Zip Ties: Keep all cables neatly organized and secure them with zip ties to prevent them from getting caught in the moving parts of your bike.
  • Check Torque Specifications: When tightening bolts, use a torque wrench and follow the manufacturer’s recommended torque specifications to avoid overtightening or undertightening.
  • Be Patient and Methodical: Take your time and work methodically. Don’t rush the installation, and double-check each step before moving on to the next.
  • Seek Help if Needed: If you encounter any difficulties during the installation, don’t hesitate to seek help from online forums, e-bike communities, or even a local bike shop.

Safety Precautions

  • Always wear a helmet and adhere to local regulations for electric bicycles. Be sure to check out our article on European laws and United States e-bike classification systems for more information.
  • Ride responsibly and be mindful of the increased power and speed of your e-bike.
  • Modifying your bike and installing an electric motor may void your warranty and could necessitate specific insurance. Research and comply with local laws and regulations before converting your bike.

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