1. Important Safety Warnings
⚠️ Please mind potential fire risk and strictly follow the instruction manual for charging and storage. While using the product, please wear protective equipment and fully comply with the applicable law and regulations.
- Always wear a helmet and appropriate safety gear when riding.
- Familiarize yourself with local e-bike regulations before riding.
- Perform a pre-ride safety check before each use.
- Do not operate the e-bike under the influence of alcohol or drugs.
- Avoid riding in adverse weather conditions or on slippery surfaces.
2. Product Overview
The BURCHDA U8 is a powerful 20-inch electric fatbike designed for adults, featuring a 1000W motor and a high-capacity 48V 31.5AH lithium battery. It offers multiple riding modes and is built for comfort and versatility across various terrains.
Key Features:
- Motor: 1000W Brushless Motor with 95NM Torque
- Battery: 48V 31.5AH Lithium Battery with BMS (Battery Management System)
- Speed: Up to 45 KM/H (unlimited mode), 25 KM/H (limited mode)
- Range: Up to 200 KM (pedal assist mode), 120 KM (electric mode)
- Tires: 20x4.0 inch Ivistone Fat Tires
- Brakes: Wuking Mechanical Disc Brakes (160mm Rotors)
- Transmission: Shimano Tourney 7-speed Shifting Lever and Derailleur
- Suspension: Aluminum Front Fork with built-in shock absorption
- Display: Smart Bluetooth LCD Display
- Comfort: Giant Big Seat (250mm x 330mm) and Padded Rear Seat
- Lighting: Bicycle Headlight and Warning Tail Light
- Frame: Aluminum Alloy
- Additional: Metal Fenders, Aluminum Pedals, USB charging port
3. Setup and Assembly
Your BURCHDA U8 electric bicycle comes partially assembled. Follow these steps to complete the setup:
3.1 Unpacking
- Carefully remove the e-bike and all components from the packaging.
- Check for any damage during transit and ensure all parts are present according to the packing list.
3.2 Handlebar Installation
Attach the handlebar to the stem, ensuring it is centered and tightened securely. Adjust the angle for comfortable riding.
3.3 Pedal Installation
Identify the left (L) and right (R) pedals. Thread the pedals into the crank arms. The left pedal threads counter-clockwise, and the right pedal threads clockwise. Tighten them firmly.
3.4 Seat Adjustment
Adjust the seat post height using the quick-release lever to ensure a comfortable and safe riding position. The seat is designed for enhanced comfort with dimensions of 250mm width and 330mm length.
3.5 Tire Inflation
Inflate the 20x4.0 inch fat tires to the recommended pressure indicated on the tire sidewall. Proper tire pressure is crucial for performance and safety.
3.6 Battery Installation and Charging
The 48V 31.5AH lithium battery is typically pre-installed. Ensure it is securely locked in place. Before your first ride, fully charge the battery. The charging time is approximately 9 to 10 hours.
⚠️ WARNING: Use only the charger provided with this product. Do not insert keys or other metal objects into the charging hole, otherwise it may cause a short circuit and burn the charging hole!
4. Operation
4.1 Powering On/Off
Press and hold the power button on the handlebar control panel to turn the e-bike on or off.
4.2 LCD Display Functions
The Smart Bluetooth LCD display provides real-time information such as riding speed, battery level, and mileage. It can also be controlled via a mobile phone Bluetooth link.
4.3 Riding Modes
The BURCHDA U8 offers 5 modes of operation:
- Manual Mode (0% None): Can only be driven forward by pedaling, without electric assistance.
- Assist Mode (50% Boost): Pedal assisted by the electric motor, with the option to choose different levels of assistance.
- Electric Mode (100% Boost): Completely driven by the electric motor, no pedaling required.
4.4 Shifting Gears
The e-bike is equipped with a Shimano 7-speed transmission system. Use the Shimano thumb shifter on the handlebar to change gears, allowing you to easily tackle complex road conditions and reduce leg strain.
4.5 Lights
The e-bike features a bright bicycle headlight for illuminating your path and a warning tail light to maintain a safe distance from other vehicles.
4.6 Braking
The BURCHDA U8 is equipped with Wuking mechanical disc brakes (160mm rotors) for precise and reliable stopping power, ensuring safe riding.
4.7 Riding on Various Terrains
The 4.0-inch fat tires are suitable for various terrains, including sand, snow, and potholed ground.
4.8 Video Demonstration
5. Maintenance
Regular maintenance ensures the longevity and safe operation of your BURCHDA U8 e-bike.
- Cleaning: Wipe down the frame and components with a damp cloth. Avoid using high-pressure water jets directly on electrical components.
- Battery Care: Store the battery in a cool, dry place. Charge it regularly, even if not in use, to maintain its health. Avoid fully discharging the battery.
- Tire Pressure: Check tire pressure before each ride and inflate to the recommended PSI.
- Brake Inspection: Regularly check brake pads for wear and ensure brake levers are responsive. Adjust as needed.
- Chain Lubrication: Keep the chain clean and lubricated for smooth shifting and to prevent rust.
- Fasteners: Periodically check all bolts and fasteners for tightness.
6. Troubleshooting
This section addresses common issues you might encounter with your BURCHDA U8 e-bike.
- E-bike not powering on: Ensure the battery is fully charged and properly seated. Check all connections.
- Motor not assisting: Verify that the pedal assist level is set correctly on the display. Check for any error codes on the LCD.
- Brakes feel spongy: This may indicate air in the brake lines or worn brake pads. Consult a professional for adjustment or replacement.
- Unusual noises: Inspect the chain, gears, and motor for any obstructions or loose parts.
The LCD display can show error codes. Refer to the display features image for an indication of where error codes are shown. If an error code appears, consult the full manual (if available) or contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Brand Name | BURCHDA |
| Model Number | U8 |
| Motor | 1000W Brushless Motor |
| Motor Torque | 95NM |
| Battery | 48V 31.5AH Lithium Battery |
| Max Speed | 45 KM/H (unlimited), 25 KM/H (limited) |
| Range per Power | Up to 200 KM (Pedal Assist), 120 KM (Electric Mode) |
| Wheel Size | 20 inches |
| Tires | 20x4.0 inch Fat Tires |
| Frame Material | Aluminum Alloy |
| Front Fork | Aluminum Alloy with Shock Absorber |
| Brakes | Mechanical Disc Brakes |
| Transmission | Shimano 7-speed |
| Display | Smart Bluetooth LCD Display |
| Rated Passenger Capacity | One Seat (with additional padded rear seat) |
| Climbing Angle | 30° |
| Max Load | Approx. 200kg |
| Charging Time | 9 to 10 hours |
| Weight | 40kg |
| Dimensions (L x H) | 181cm x 122cm |
| Certification | CE, MSDS, EN15194, GCC, ROHS, UDEM |
8. User Tips
- Rear Passenger Seat: The BURCHDA U8 comes standard with a padded rear seat, making it suitable for carrying a passenger or additional cargo.
- Battery Longevity: To maximize battery life, avoid storing the e-bike in extreme temperatures and ensure it is charged regularly, even during periods of non-use.
- Pre-Ride Check: Always perform a quick check of tire pressure, brake function, and battery level before each ride for optimal safety and performance.
- Terrain Adaptability: Utilize the fat tires and front suspension for a comfortable ride on diverse surfaces like sand, snow, or uneven paths.
9. Warranty and Support
The BURCHDA U8 electric bicycle comes with a 3-year warranty, ensuring peace of mind regarding manufacturing defects and component failures under normal use.
Contact Support:
For technical assistance, warranty claims, or any questions regarding your BURCHDA U8 electric bicycle, please contact your retailer or the manufacturer's customer service department. Refer to your purchase documentation for specific contact details.
