Introducció
This manual provides comprehensive instructions for the installation, operation, and maintenance of your BAFANG 48V 1000W Rear Hub Motor Electric Bike Conversion Kit. Please read this manual thoroughly before attempting installation or operation to ensure safe and efficient use of the product.
The BAFANG 48V 1000W rear hub motor kit is designed to convert a standard bicycle into a powerful electric bicycle, offering enhanced riding capabilities across various terrains.
1. Configuració i instal·lació
1.1. Packing List and Unboxing
Upon receiving your BAFANG conversion kit, carefully unbox all components and verify the contents against the list below. If any items are missing or damaged, please contact customer support immediately.

Imatge: Més deview of all components included in the BAFANG 48V 1000W Electric Bike Conversion Kit, including the rear hub motor wheel, controller, display, battery (optional), brake levers, throttle, PAS sensor, and various cables.
The standard packing list includes:
- Rear Cassette Wheel Hub Motor with Rim & Spokes (26 Inch Fat Tire compatible)
- BAFANG Controller and its outer box
- Display (e.g., 500C, optional)
- Battery and Charger (if ordered together with the kit)
- Palanques de fre
- 1T4 Cable
- Acelerador del polze
- PAS Sensor (Pedal Assist Sensor)
- Far
- Adhesius
- Manual d'usuari (aquest document)
1.2. Comprovació de compatibilitat
Ensure your bicycle meets the following compatibility requirements before proceeding with installation:
- Rear Dropout (OLD) Measurement: The rear dropout width of your bike frame must be 175mm or 190mm.
- Tipus de fre: Your bike must be equipped with disc brakes. This hub motor is not compatible with rim brakes.
- Freewheel Type: This kit is designed for bikes with a cassette flywheel. If your bike uses a rotary freewheel, you will need to purchase a compatible cassette flywheel separately.

Image: Detailed size specifications for the BAFANG 26-inch fat tire hub motor wheel, illustrating measurements for dropout (175mm/190mm), axle length (9.25" / 9.69"), and compatibility with 26" bicycle wheels and 4.0" fat tires.
Compatibilitat de la bateria: If you ordered a battery, ensure it fits your bike frame. For shark-style batteries, you can download a compatibility guide from the product page to create a cutout for testing fitment. For rear rack batteries, check for installation screw holes on your rear fork and measure the size of your rear fork (130-145mm) for compatibility with 26", 27.5", 28", 29", and 700c bikes.

Image: Guide on how to check if the Shark battery fits your bike frame by using a printed cutout.

Image: Guide on how to check if the rear rack battery fits your bike, including checking for screw holes and measuring the rear fork.
1.3. Passos d'instal·lació
The BAFANG conversion kit is designed for relatively easy installation, typically achievable within an hour. A detailed manual with basic mounting accessories is included in your package. Follow the instructions provided in the physical manual for precise installation steps.
Key installation areas include:
- Instal·lació de rodes: Replace your bike's rear wheel with the BAFANG hub motor wheel. Ensure proper alignment and secure fastening.
- Muntatge del controlador: Mount the controller securely, typically in the provided controller box, in a protected location on your bike frame.
- Instal·lació de la bateria: Install the battery according to its type (down tube or rear rack) and secure it firmly.
- Component Mounting: Install the display on your handlebars, the thumb throttle, and the brake levers.
- PAS Sensor Installation: Mount the Pedal Assist Sensor near your crank arm.
- Cablejat: Connect all components to the controller using the provided cables. Refer to the wiring diagrams below for correct connections based on your bike's dropout size (OLD).
Esquemes de cablejat:

Image: Wiring diagram for the BAFANG conversion kit, specifically for bikes with a 175mm rear dropout (OLD). It shows connections for the motor, controller, battery, display, throttle, brake levers, PAS sensor, and headlight.

Image: Wiring diagram for the BAFANG conversion kit, specifically for bikes with a 190mm rear dropout (OLD). It illustrates the connections for all electrical components, including the motor, controller, battery, display, throttle, brake levers, PAS sensor, and headlight.
If you encounter any difficulties during installation, please refer to the detailed physical manual or contact BAFANG customer support for assistance.
2. Instruccions de funcionament
2.1. Modes de conducció
Your BAFANG electric bike conversion kit offers three distinct riding modes to suit various preferences and conditions:
- Electric Bike (Thumb Throttle Mode): Provides power directly from the motor via the thumb throttle, allowing you to ride without pedaling.
- Mode d'assistència al pedaleig (PAS): The motor provides assistance as you pedal, amplifying your effort. The level of assistance can typically be adjusted via the display.
- Mode normal de bicicleta: The motor is disengaged, and the bike operates as a standard pedal bicycle without any electrical assistance.
2.2. Display Usage (500C Display)
The 500C display provides essential information and allows you to control various functions of your e-bike. Refer to the display specification image for an overview of different display models and their features.

Image: A comparative table detailing specifications for various BAFANG displays, including screen size, battery indicator, holder dimensions, speed limit, compatible voltage, light sensation, PAS levels, and USB port availability. The 500C display is highlighted as an option.
Common functions accessible via the display include:
- Encès/Apagat
- Adjusting Pedal Assist Levels (PAS)
- Monitoring Battery Level
- Viewing Speed (Current, Max, Average)
- Tracking Trip Distance and Odometer
- Controlling Headlight (if connected)
For detailed operation of your specific display model, consult the dedicated display manual included with your kit.
2.3. Performance and Usage Scenarios
The 1000W motor provides a maximum torque of 85 N.m, offering strong and efficient power for cycling. The maximum speed can reach 40-50 KM/H, depending on rider weight, terrain, and assist level.
This conversion kit is suitable for various terrains and cycling conditions, transforming your bike into a versatile electric vehicle capable of handling:

Image: The BAFANG fat tire hub motor wheel is depicted alongside icons representing various terrains it can handle, including snow fields, beaches, muddy roads, and flat roads, emphasizing its versatility.
- Snow Fields: The fat tire compatibility allows for improved traction in snowy conditions.
- Platja: Navigate sandy terrains with ease thanks to the powerful motor and fat tires.
- Muddy Roads: The robust design and power assist in traversing challenging muddy paths.
- Flat Roads: Enjoy effortless cruising and higher speeds on paved surfaces.
3. Manteniment
Regular maintenance is crucial for the longevity and optimal performance of your BAFANG electric bike conversion kit. While specific maintenance instructions for each component are typically found in their respective manuals, general guidelines include:
- Neteja: Keep the motor, battery, and electrical connections clean and free from dirt, dust, and moisture. Use a damp drap; eviteu rentar a alta pressió directament sobre els components elèctrics.
- Cura de la bateria:
- Charge the battery regularly, even when not in use, to maintain its health.
- Eviteu descarregar completament la bateria.
- Guardeu la bateria en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Connexions elèctriques: Periodically check all cables and connectors for signs of wear, corrosion, or looseness. Ensure they are securely plugged in.
- Components mecànics: Regularly inspect your bike's mechanical parts, such as brakes, tires, chain, and gears, as you would with a regular bicycle. Ensure disc brakes are functioning correctly.
- Inspecció de motors: While the hub motor is largely maintenance-free, listen for unusual noises and ensure it is securely mounted.
For any complex maintenance or repairs, it is recommended to consult a qualified e-bike technician.
4. Solució De Problemes
This section provides basic troubleshooting steps for common issues. For more complex problems, please contact BAFANG technical support.
| Problema | Causa possible | Solució |
|---|
| Motor not providing power | Battery low or not connected; loose electrical connections; display off; PAS sensor issue. | Check battery charge and connection; inspect all cables; turn on display; check PAS sensor alignment. |
| La pantalla no s'encén | Loose display cable; battery not connected or dead; faulty display. | Ensure display cable is secure; check battery connection and charge; contact support if issue persists. |
| Assistència al pedaleig inconsistent | PAS sensor misaligned or dirty; loose PAS sensor cable. | Clean and realign PAS sensor; check PAS sensor cable connection. |
| Sorolls inusuals del motor | Loose motor mounting; internal motor issue. | Check motor mounting bolts; if noise persists, contact technical support. |
Always ensure the battery is charged and all connections are secure before troubleshooting. If the problem persists after basic checks, do not attempt complex repairs yourself.
6. Garantia i Suport
6.1. Informació de la garantia
The BAFANG 48V 1000W Rear Hub Motor and its accompanying battery (if purchased together) come with a garantia d'un any from the date of purchase. This warranty covers manufacturing defects and ensures peace of mind regarding the quality and performance of these core components.
Please retain your proof of purchase for warranty claims. The warranty does not cover damage resulting from improper installation, misuse, neglect, accidents, or unauthorized modifications.
6.2. Atenció al client
BAFANG is committed to providing excellent customer service and technical support. Our team of professional technicians, based in the USA, is available to assist you with any technical queries or issues you may encounter.

Image: An icon depicting a phone, symbolizing phone service for customer support.
Servei telefònic
Contact our support team via phone for immediate assistance.

Image: An icon showing a wrench in a hand, representing after-sales maintenance service.
After-Sales Maintenance Service
Benefit from our dedicated after-sales support for maintenance and repair inquiries.
For any special requirements or requests, please do not hesitate to communicate with us. Effective communication ensures we can accommodate your needs and provide a worry-free post-sales experience.
Please check your Amazon inbox for important notifications regarding inventory or order updates.
7. Informació important de seguretat
Always wear a helmet when riding your electric bicycle. Obey all local traffic laws and regulations. Perform a pre-ride safety check before each use, including checking tire pressure, brake function, and battery charge. Do not operate the e-bike in conditions beyond its intended use or your riding capabilities.