1. Introduction
Thank you for choosing the Fafrees F20 Max Foldable Electric Bicycle. This manual provides essential information for the safe operation, assembly, maintenance, and troubleshooting of your new e-bike. Please read this manual thoroughly before your first ride to ensure optimal performance and safety.
Image: The Fafrees F20 Max electric bicycle in red, shown with a front rack and a chain lock.
2. Safety Information
Your safety is paramount. Always wear a helmet and appropriate safety gear when riding. Adhere to local traffic laws and regulations. Perform a pre-ride inspection before each use.
2.1 Battery Safety
- Do not expose the battery to extreme temperatures or direct sunlight.
- Use only the original charger provided with the bike.
- Do not disassemble or modify the battery pack.
- Charge the battery in a well-ventilated area, away from flammable materials.
- If the battery is damaged or leaking, do not use it and dispose of it properly.
2.2 Riding Safety
- Ensure brakes are functioning correctly before each ride.
- Check tire pressure regularly.
- Be aware of your surroundings and ride defensively.
- Avoid riding in heavy rain or extreme weather conditions.
- Do not exceed the maximum load capacity of 150 kg.
3. Package Contents
Upon unpacking, please verify that all items listed below are present and in good condition:
- Fafrees F20 Max Electric Bicycle (main unit)
- 48V 22.5Ah Lithium-ion Battery (pre-installed or separate)
- Battery Charger
- Toolbox
- User Manual (this document)
- Keys for battery lock
- Front rack (as shown in images)
- Rear rack (as shown in images)
- Fenders (as shown in images)
- Footrests (as shown in images)
4. Setup and Assembly
The Fafrees F20 Max comes largely pre-assembled. Follow these steps to prepare your bike for its first ride:
4.1 Unfolding the Bicycle
- Carefully remove the bicycle from its packaging.
- Locate the main frame hinge and unfold the frame until it locks into place.
- Unfold the handlebar stem and secure the locking mechanism.
- Unfold the pedals.
Image: The Fafrees F20 Max folded and stored in a car trunk, demonstrating its portability.
Image: Detailed view of the folding handlebar, folding pedals, and folding frame mechanisms of the Fafrees F20 Max.
4.2 Adjusting Handlebar and Seat Height
- Adjust the handlebar height (120-140 cm) to a comfortable riding position using the quick-release lever.
- Adjust the seat height (86-102 cm) to ensure your feet can comfortably touch the ground when stopped.
Image: Illustration of the dual shock absorption system on the Fafrees F20 Max, showing 50mm front fork travel and 15mm seat post travel for enhanced comfort.
5. Operating Instructions
5.1 Powering On/Off and LCD Display
The intelligent LCD display shows crucial riding data. Press and hold the power button to turn the bike on or off.
Image: The smart LCD control display of the Fafrees F20 Max, showing current speed (25 km/h), battery level, and other ride data. It also indicates cruise control and walk-assist modes.
The display provides information such as:
- Current Speed
- Battery Level
- Total Distance Traveled (Odometer)
- Trip Distance
- Current Power Assist Level (PAS)
5.2 Riding Modes
The F20 Max offers three riding modes:
- Pedal Assist Mode (PAS): The motor provides assistance as you pedal. Adjust the assist level via the LCD display. Max range: 120-140 km.
- Pure Electric Mode: Use the throttle for motor power without pedaling. Max range: 65-85 km.
- Manual Mode: Ride as a traditional bicycle without motor assistance.
5.3 Shimano 7-Speed Transmission
Shift gears using the Shimano 7-speed shifter on the handlebar to adapt to different terrains and inclines. Ensure you are pedaling lightly when shifting gears for smooth transitions.
Image: Close-up view of the Fafrees F20 Max's Shimano 7-speed gear system and the mechanical power-off disc brakes on both front and rear wheels, along with the front light and brake taillight.
5.4 Mechanical Disc Brakes
The F20 Max is equipped with front and rear mechanical disc brakes for reliable stopping power. Squeeze both brake levers simultaneously for effective and controlled braking.
6. Maintenance
Regular maintenance ensures the longevity and safe operation of your Fafrees F20 Max.
6.1 Battery Care
- Charge the battery fully before first use.
- Recharge the battery after each ride, or at least once a month if not in use, to maintain battery health.
- Store the battery in a cool, dry place.
- The battery is removable for convenient charging.
Image: The 48V 22.5Ah high-capacity battery with Samsung cells, highlighting its long range (140-160 km PAS mode, 100-120 km electric mode) and 11-13 hour charging time, along with protection features like overcurrent, overcharge, and short-circuit protection.
6.2 Tires
- Check tire pressure before each ride. Refer to the tire sidewall for recommended pressure.
- Inspect tires for wear, cuts, or punctures regularly.
Image: The CST 20x4.0 fat tires of the Fafrees F20 Max, demonstrating their anti-slip properties and suitability for various terrains including snow, sand, mud, gravel, and flat ground.
6.3 Brakes
- Regularly check brake pads for wear and replace them when necessary.
- Ensure brake levers are firm and responsive.
6.4 General Cleaning
- Clean the bike with a damp cloth. Avoid high-pressure washing directly on electrical components.
- Lubricate the chain periodically.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Bike does not power on | Battery not charged or not properly seated. | Ensure battery is fully charged and securely locked in place. Check connections. |
| Motor not assisting | Low battery, PAS level too low, or brake lever engaged. | Charge battery, increase PAS level on display, ensure brake levers are fully released. |
| Brakes feel weak | Worn brake pads or loose brake cable. | Inspect brake pads and replace if worn. Adjust brake cable tension. Consult a professional if unsure. |
| Unusual noises | Loose components, dry chain, or debris. | Check all bolts and quick releases. Lubricate chain. Inspect for foreign objects. |
For issues not listed here, please contact Fafrees customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Model | F20 Max |
| Motor | 500W Brushless Motor |
| Battery | 48V 22.5Ah Lithium-ion (Samsung Cell) |
| Max Speed | 25 km/h (can be unlocked) |
| Pure Electric Range | 65-85 km |
| Pedal Assist Range | 120-140 km |
| Charging Time | 11-13 hours |
| Tires | 20" x 4.0 Fat Tires |
| Transmission | Shimano 7-Speed |
| Brakes | Mechanical Disc Brakes (Front & Rear) |
| Frame Material | Aluminum |
| Max Load Capacity | 150 kg |
| Adjustable Handlebar Height | 120-140 cm |
| Adjustable Seat Height | 86-102 cm |
| Waterproof Rating | IPX3 |
| Item Weight | 31 kg |
Image: An overview of the F20 Max specifications, including 500W brushless motor, 48V/22.5Ah Samsung battery, IPX3 waterproof, 25km/h speed, 150kg max load, 20*4.0 fat tires, front suspension, Shimano 7-speed, and three riding modes.
9. Warranty and Support
Fafrees provides a warranty for its products. Please refer to the warranty card included with your purchase or visit the official Fafrees website for detailed warranty terms and conditions.
For technical support, spare parts, or any inquiries, please contact Fafrees customer service. Contact information can typically be found on the Fafrees website or on your purchase receipt.
Note: Our e-bikes are shipped from Poland, with delivery typically within 3-7 days. If you encounter any issues, please contact us promptly; we will respond within 24 hours.
