BAFANG BBS01B 36V 500W Ebike Conversion Kit User Manual

1. Product Overview

This manual provides instructions for the BAFANG BBS01B 36V 500W Ebike Conversion Kit. This kit is designed to transform a standard bicycle into an electric bicycle, offering pedal assist and throttle modes for enhanced riding experience. It includes a powerful central motor, a 3.5-inch C18 display, and a 36V 19.2Ah battery.

Image 1.1: Overview of the BAFANG BBS01B Ebike Conversion Kit components.

Motor Features

• Motor Type: Central Motor (Mid-Drive)
• Rated Power: 36V 500W
• Max Torque: 100NM
• Max Speed: 25 KM/H (approximately 15.5 MPH)
• Modes: Pure Throttle Mode, Pedal Assist Mode, Walk Assist Mode, Manual Mode

Image 1.2: BAFANG 36V 500W Mid-Drive Motor highlighting its key specifications and operating modes.

Display Features

• Model: Bafang C18 Display
• Size: 3.5 inches
• Assist Levels: 9 levels of pedal assist
• Features: Auto backlight, speed, battery level, trip distance, time.

Image 1.3: The BAFANG C18 display unit, showing current speed, battery charge, and pedal assist level.

2. What's in the Box

The BAFANG BBS01B Ebike Conversion Kit includes the following components:

• BAFANG BBS01B 36V 500W Central Motor
• 3.5" Bafang C18 Display
• 36V 19.2Ah Battery with Bracket
• Battery Charger
• Speed Sensor
• Throttle
• Crank Arms
• 46T Chainring & Guard
• Brake Levers (e-Brakes)
• 1T4 Cable
• Locking Nuts
• Front Lamp
• Wrench
• Gloves
• Cable Ties
• Crank Removal Tools
• User Manual (this document)

Image 2.1: All parts and accessories included in the BAFANG BBS01B Ebike Conversion Kit.

3. Compatibility Requirements

Before installation, ensure your bicycle meets the following compatibility criteria:

• Bottom Bracket Diameter: The inner diameter of the bottom bracket must be between 34mm and 36mm.
• Bottom Bracket Width: The width of the bottom bracket must be between 68mm and 73mm.
• Brake Type: Compatible with V-brake and disc brake systems. Not compatible with backpedal brake systems.
• Drive Type: Suitable only for chain drive bicycles. Not suitable for belt drive bicycles.
• Frame Material: It is not recommended to install this conversion kit onto a carbon fiber frame.

Image 3.1: Visual guide for checking bicycle bottom bracket dimensions and compatibility with the motor unit.

4. Installation Guide

This section provides a step-by-step guide for installing your BAFANG BBS01B Ebike Conversion Kit. Refer to the provided video for a visual demonstration.

Installation Steps:

1. Remove Chainring, Crank Arms, and Bottom Bracket: Carefully remove the existing chainring, crank arms, and bottom bracket from your bicycle frame.
2. Install Chainring: Attach the new chainring to the BAFANG motor unit using the provided M5 bolts.
3. Install Chain Guard: Secure the chain guard to the chainring using the supplied screws.
4. Slide Motor Assembly: Insert the assembled motor unit into the bicycle's bottom bracket shell.
5. Secure Motor: Use the Y-shaped motor mount bracket on the left side to firmly secure the motor to the frame.
6. Install Crank Arms: Attach the new crank arms to the motor's spindle.
7. Install Chain: Route the bicycle chain around the new chainring and rear cassette.
8. Connect Wiring Harness: Connect the main wiring harness from the motor assembly.
9. Connect Accessories: Connect the front lamp, speed sensor, and gear sensor (if applicable) to the main wiring harness. Ensure all connections are secure.
10. Install Brake Levers: Slide the new brake levers onto the handlebar and tighten them securely.
11. Install Thumb Throttle: Install the thumb throttle onto the handlebar and tighten.
12. Install Display: Mount the C18 display to your handlebars and connect its cable to the main wiring harness.
13. Install Battery Mount: Secure the battery mount to the bicycle frame using the provided hardware.
14. Install Battery: Slide the 36V 19.2Ah battery onto its mount and ensure it locks into place. Connect the battery cable to the main wiring harness.
15. Power On and Check System: After all components are installed and connected, power on the system and verify that the display, motor, and all sensors are functioning correctly.

Wiring Diagram

Image 4.2: Detailed wiring diagram for the BAFANG Mid Drive Kit, illustrating how each component connects to the main harness.

5. Operating Instructions

Once installed, operating your BAFANG e-bike conversion kit is straightforward. The C18 display provides control and information for your ride.

C18 Display Functions

• Power On/Off: Press and hold the power button on the display to turn the system on or off.
• Pedal Assist Levels: Use the '+' and '-' buttons to cycle through 9 levels of pedal assist. Level 0 provides no assist, while Level 9 provides maximum assist.
• Information Display: The display shows real-time speed, current battery charge, trip distance, total odometer, and riding time.
• Auto Backlight: The display features an automatic backlight for visibility in varying light conditions.

Riding Modes

• Pure Throttle Mode: Engage the thumb throttle to propel the bike without pedaling.
• Pedal Assist Mode: The motor provides assistance as you pedal, based on the selected assist level.
• Walk Assist Mode: A low-speed assist feature, typically activated by holding a specific button, to help push the bike while walking.
• Manual Mode: Ride the bicycle like a traditional bike with no motor assistance.

6. Specifications

7. Safety Information

Always prioritize safety when operating your e-bike. Adhere to local traffic laws and wear appropriate safety gear, including a helmet.

• Perform a pre-ride check before each use, ensuring brakes, tires, and all electrical connections are secure and functional.
• Do not operate the e-bike in extreme weather conditions or on unsafe terrain.
• Keep the battery and electrical components dry. Avoid submerging them in water.
• Charge the battery in a well-ventilated area, away from flammable materials.
• Do not modify the motor, battery, or controller. Unauthorized modifications can lead to malfunction and void the warranty.
• Ensure all bolts and fasteners are tightened to the manufacturer's specifications.

8. Troubleshooting

If you encounter issues with your BAFANG Ebike Conversion Kit, consider the following common troubleshooting steps:

• No Power: Check if the battery is fully charged and properly seated. Ensure all electrical connections are secure.
• Motor Not Assisting: Verify that the pedal assist level is not set to 0. Check the speed sensor connection and ensure the magnet is correctly aligned.
• Display Not Working: Ensure the display cable is securely connected. If the issue persists, try restarting the system by turning it off and on.
• Unusual Noises: Inspect the motor, chainring, and crank arms for any loose parts or obstructions.
• Error Codes: If the display shows an error code, consult the specific BAFANG C18 display manual for detailed explanations and solutions.

For persistent issues, contact BAFANG customer support or a qualified e-bike technician.

9. Maintenance

Regular maintenance ensures the longevity and optimal performance of your BAFANG Ebike Conversion Kit.

• Cleaning: Clean the motor, battery, and display with a damp cloth. Avoid high-pressure washing directly on electrical components.
• Lubrication: Keep the chain and other moving parts of your bicycle regularly lubricated.
• Battery Care: Store the battery in a cool, dry place. If not used for extended periods, charge it to 50-70% every 1-2 months.
• Inspections: Periodically check all cables for wear or damage. Ensure all bolts and connections remain tight.
• Professional Service: Consider annual professional servicing to ensure all components are functioning correctly and safely.

10. Warranty and Support

The BAFANG BBS01B Ebike Conversion Kit comes with a limited warranty. Please refer to the warranty card included with your product for specific terms and conditions, including coverage duration and claim procedures.

For technical support, spare parts, or warranty claims, please contact the seller or BAFANG customer service directly. Provide your model number (eBIKE-KIT-G340-36V-500W-46T-C18-19.2Ah) and proof of purchase for efficient assistance.

Contact Information: Refer to your purchase documentation or the BAFANG official website for the most up-to-date support contact details.