1. پیژندنه
This manual provides essential information for the installation, operation, and maintenance of your BAFANG BBS01B Mid Drive Motor Kit. This kit is designed to convert standard bicycles into electric bikes, offering enhanced performance and versatility. Please read this manual thoroughly before installation and use to ensure proper function and safety.
محصول پای ته ورسیدview
The BAFANG BBS01B Mid Drive Motor Kit is a robust and efficient solution for electric bicycle conversion. It features a powerful 36V 250W motor, a C18 display with 9 levels of pedal assist and automatic backlight, and a comprehensive set of components for a complete conversion.
کلیدي ځانګړتیاوې عبارت دي له:
- نړیوال مطابقت: Designed for mountain bikes, road bikes, and commuter bikes with a standard JIS 68mm bottom bracket (34mm lower bracket diameter).
- ځواکمن فعالیت: The 36V 250W motor delivers a maximum torque of up to 80 N.m and a top speed of 25 km/h, providing excellent climbing capability.
- Three Driving Modes: Offers pure electric mode, power-assisted mode, and manpower mode to suit various riding preferences and conditions.
- اسانه نصب کول: The kit is designed for straightforward installation, allowing for quick conversion of your bicycle.

شکل 1.1: پایview of the BAFANG BBS01B Mid Drive Motor Kit components, including the motor, C18 display, brake levers, throttle, and various accessories.
2. د بسته محتويات
Please verify that all items listed below are present in your package. If any components are missing, please contact customer support.
- Mid-motor (36V 250W)
- C18 Display (with 9 levels pedal assist and automatic backlight)
- مات شوي لیورز
- د ګوتو تخته
- کرینکس
- د سرعت سینسر
- د 1T4 کیبل
- Chainring (44T)
- Mounting Screws and Nuts
- د کارونکي لارښود (دا لاسوند)
Note: Battery is not included in this kit.

Figure 2.1: Visual representation of the BAFANG Mid Drive Motor Kit and its included components.
3. ترتیب او نصب کول
۱.۱ د مطابقت چک
Before beginning installation, ensure your bicycle is compatible with the BAFANG BBS01B Mid Drive Motor Kit.
- لاندې بریکٹ: Your bike must have a 68mm bottom bracket. The inner diameter of the bottom bracket should be approximately 33.5mm.
- د چوکاټ مواد: It is not recommended to install this conversion kit onto a carbon fiber frame.
- Sprocket Clearance: Ensure that the chosen chainring size will not interfere with the chain stay of your bicycle frame.

Figure 3.1: Diagrams illustrating how to measure your bicycle's bottom bracket (68mm width, 33.5mm inner diameter) and check for adequate sprocket clearance to ensure compatibility with the BAFANG motor.
3.2 Motor Installation Steps
Follow these steps to install the BAFANG mid drive motor onto your bicycle:
- Remove your bicycle's existing bottom bracket, cranks, and chainring.
- Insert the BAFANG mid motor into the bottom bracket shell.
- Secure the motor with the fixed bracket, M33-PH nut, and M33 aluminum nut.
- Install the chainring and chain guard onto the motor spindle, securing them with the provided screws.
- Attach the right and left cranks to the motor spindle.

Figure 3.2: An exploded diagram showing the individual components and their assembly order for installing the BAFANG mid drive motor onto a bicycle frame.
3.3 د تارونو ډیاګرام
Connect the various components to the motor using the provided 1T4 cable and individual connectors. Ensure all connections are secure and correctly oriented.
- سره وصل کړئ ښودل to the main wiring harness.
- سره وصل کړئ مات شوي لیورز (e-Brakes) to the main wiring harness.
- سره وصل کړئ د ګوتو تخته to the main wiring harness.
- سره وصل کړئ د سرعت سینسر to the motor. Ensure the sensor is mounted correctly to detect wheel rotation.
- سره وصل کړئ مخکی Lamp (if included or purchased separately) to the designated port.
- خپل وصل کړئ بیټرۍ (not included) to the motor's power input.

Figure 3.3: A detailed wiring diagram illustrating the connections between the BAFANG mid drive motor, battery, display, speed sensor, e-brakes, throttle, and front lamp.
4. عملیاتي لارښوونې
4.1 بریښنا کول / بندول
To power on the system, press and hold the power button on the C18 display. To power off, press and hold the power button again.
4.2 C18 Display Functions
The C18 display provides real-time information and control over your e-bike system:
- Speed Indication: اوسنی سرعت ښکاره کوي.
- د بیټرۍ کچه: د بیټرۍ پاتې چارج ښیې.
- د پیډل مرستې کچه (PAS): Adjust between 9 levels of pedal assistance using the '+' and '-' buttons.
- د سفر واټن: Tracks current trip distance.
- اتوماتیک شاته رڼا: The display features an automatic backlight for visibility in varying light conditions.
۵.۳ د موټر چلولو طریقې
The BAFANG mid drive motor supports three primary driving modes:
- خالص برقي حالت: Engage the thumb throttle to propel the bike without pedaling.
- Power-Assisted Mode: Select a pedal assist level (1-9) on the C18 display. The motor will provide assistance proportional to your pedaling effort.
- Manpower Mode: Ride the bicycle without any motor assistance, similar to a traditional bicycle.
5. ساتنه
Regular maintenance ensures the longevity and optimal performance of your BAFANG mid drive motor kit.
- موټور سيasing: Keep the motor casing clean and free from dirt and debris. Avoid using high-pressure water jets directly on the motor.
- بریښنایی پیوستون: په دوره یي ډول ټول بریښنایی اتصالونه د ټینګښت او زنګ وهلو لپاره وګورئ. ډاډ ترلاسه کړئ چې کیبلونه نه دي غوڅ شوي یا زیانمن شوي.
- زنځیر او ډرایوټرین: Maintain your bicycle's chain and drivetrain (chainring, cassette, derailleur) as you would a regular bike. Keep the chain lubricated and clean.
- ښودنه او کنټرولونه: Clean the display screen with a soft, damp cloth. Ensure buttons on the display and throttle operate smoothly.
- د بیټرۍ پاملرنه: Follow the manufacturer's instructions for your specific e-bike battery (not included with this kit) regarding charging, storage, and maintenance.
6. ستونزه حل کول
This section addresses common issues you might encounter with your BAFANG mid drive motor kit.
Motor Not Powering On
- بیټرۍ چیک کړئ: ډاډ ترلاسه کړئ چې بیټرۍ په بشپړه توګه چارج شوې او په سمه توګه د موټرو سره وصل ده.
- اړیکې چیک کړئ: Verify all electrical connections, especially the main power cable from the battery to the motor, are secure.
- د ښودلو ارتباط: Ensure the C18 display is correctly connected and functioning.
د پیډل مرسته نشته
- د PAS کچه: Confirm that a pedal assist level (1-9) is selected on the C18 display.
- د سرعت سینسر: Check if the speed sensor is correctly installed and aligned to detect wheel rotation. A loose or misaligned sensor can prevent pedal assist.
- د بریک لیورونه: Ensure the e-brake levers are not engaged, as they cut off motor power when activated.
Motor Making Unusual Noises
- لوند اجزا: Check for any loose mounting bolts or components around the motor and bottom bracket.
- Chainring/Chain: Inspect the chainring and chain for wear or misalignment.
- If unusual noises persist, discontinue use and contact customer support.
7. مشخصات
| فیچر | مشخصات |
|---|---|
| برانډ | بافنګ |
| د ماډل نوم | UART Version Bafang Motor |
| والیtage | 36 ولټه |
| هارس پاور | 250 واټ |
| مکس توریک | 80 Nm |
| اعظمي سرعت | په ساعت کې ۱۵۰ کیلومتره |
| د توکي وزن | 6.8 کیلوګرامه |
| د لاندې بریکٹ مطابقت | 68mm (JIS Standard) |
| د ښودلو ډول | C18 Display (9 levels pedal assist, automatic backlight) |
| UPC | 783779999040 |
| برخه شمیره | 36V-250W Motor Kit 46T -C18 |

Figure 7.1: Detailed dimensions and specifications for various BAFANG mid drive motor models, including the 250W/350W variant.
8. تضمین او ملاتړ
د تضمین معلومات
Please refer to the warranty card included with your product for specific warranty terms and conditions. Generally, BAFANG products are covered against manufacturing defects for a specified period from the date of purchase.
د پیرودونکي ملاتړ
If you have any questions, require technical assistance, or find any parts missing from your kit, please contact BAFANG customer support. Provide your product model and purchase details for efficient service.
For support, please visit the official BAFANG webسایټ یا خپل پرچون پلورونکي سره اړیکه ونیسئ.





