1. Introduction
Welcome to the Gotrax F5 Folding Electric Bike user manual. This guide provides essential information for the safe and efficient operation, assembly, maintenance, and troubleshooting of your new electric bicycle. Please read this manual thoroughly before your first ride to ensure optimal performance and safety.

Figure 1: The Gotrax F5 Folding Electric Bike, showcasing its sleek white frame and fat tires.
The Gotrax F5 is designed for versatile riding, featuring a powerful 500W motor, a high-capacity 48V 13.6Ah battery, and 20x4 inch fat tires suitable for various terrains. Its folding design allows for convenient storage and transport.
2. Safety Guidelines
Your safety is paramount. Always wear a helmet and appropriate safety gear when riding. Adhere to all local traffic laws and regulations. Perform a pre-ride inspection before each use, checking brakes, tires, and battery level.
- Ensure all quick releases and folding mechanisms are securely locked before riding.
- Do not ride under the influence of alcohol or drugs.
- Avoid riding in adverse weather conditions, such as heavy rain or snow.
- Be aware of your surroundings and other road users.
- Do not exceed the maximum weight recommendation of 265 pounds (120 kg).
3. Assembly and Setup
The Gotrax F5 electric bicycle comes highly assembled. The following steps outline the final assembly and initial setup:
- Unfolding the Frame: Carefully unfold the main frame until it locks into place. Secure the folding mechanism latch.
- Handlebar Setup: Raise the handlebar stem and secure its locking mechanism. Adjust the handlebar height to a comfortable position using the quick release lever.
- Seat Post Installation: Insert the seat post into the frame and adjust the seat height. Ensure the minimum insertion mark is not visible. Secure the seat post quick release.
- Pedal Installation: Identify the left (L) and right (R) pedals. Thread the pedals into the crank arms by hand, then tighten securely with a wrench. Note that the left pedal has a reverse thread.
- Battery Installation: Insert the 48V 13.6Ah LG battery into its compartment and lock it with the provided key.
- Tire Inflation: Inflate the 20x4 inch fat tires to the recommended pressure (PSI) indicated on the tire sidewall.

Figure 2: Visual representation of the Gotrax F5's dimensions when unfolded and its compact size when folded (34.6*20.5*29.1 inches).
For a visual guide on unfolding and preparing the bike, please refer to the official product video below.
Video 1: Official product video demonstrating the folding and unfolding of the Gotrax F5 electric bike, along with key features like the removable battery and front suspension.
4. Operating Instructions
The Gotrax F5 offers multiple riding modes for a customized experience:
- Electric Mode: Provides full motor assistance without pedaling. Ideal for effortless cruising.
- Pedal-Assist (PAS) Mode: The motor provides assistance as you pedal. The F5 features 5 levels of pedal assistance, allowing you to control the amount of power output.
- Cycling Mode: Ride the bike like a traditional bicycle without any motor assistance.

Figure 3: A rider demonstrating the different riding modes available on the Gotrax F5, including Pedal Assist 1, Electric Mode, and Sport Mode.
LCD Display and Controls
The integrated LCD display provides real-time information including speed, battery level, mileage, and current gear position. Use the controls on the handlebar to power on/off, adjust pedal-assist levels, and activate the horn.

Figure 4: Detailed view of the handlebar controls, including the LCD display for speed, battery, and mileage, along with the throttle and gear shifters.
Gear Shifting
The F5 is equipped with a 7-speed Shimano transmission system. Use the gear shifter on the handlebar to change gears according to terrain and desired speed. Lower gears are suitable for climbing hills, while higher gears are for flat terrain and higher speeds.

Figure 5: The Gotrax F5 in action on an outdoor trail, demonstrating its all-terrain capabilities with fat tires and front suspension.
5. Battery Information
The Gotrax F5 is powered by a 48V 13.6Ah (652.88 Wh) high-capacity LG battery. This battery provides an impressive range of up to 28 miles in electric mode and up to 70 miles in pedal-assist 1 mode, with a quick 5-hour charge time.

Figure 6: A close-up view of the removable 48V 13.6Ah LG battery, highlighting its high capacity and easy removal for charging.
Charging the Battery
There are two methods for charging the battery:
- Remove and Charge: Unlock and remove the battery from the bike frame. Connect it to the provided charger.
- Charge On-Bike: Connect the charger directly to the exterior charging port on the bike while the battery is installed.
Always use the original charger provided by Gotrax. Do not overcharge the battery. Store the battery in a cool, dry place away from direct sunlight and extreme temperatures.
6. Maintenance
Regular maintenance ensures the longevity and safe operation of your Gotrax F5 electric bike.
- Tires: Regularly check tire pressure (20x4 inch fat tires) and inflate to the recommended PSI. Inspect for wear, punctures, or damage.
- Brakes: The F5 features dual hydraulic disc brakes. Check brake pads for wear and ensure proper braking function. Adjust or replace as needed.
- Chain: Keep the chain clean and lubricated to ensure smooth gear changes and prevent rust.
- Suspension: The front suspension fork should be inspected for proper function and cleanliness.
- General Cleaning: Clean the bike regularly with a damp cloth. Avoid using high-pressure water jets directly on electrical components.
- Fasteners: Periodically check all nuts, bolts, and quick releases to ensure they are tight and secure.

Figure 7: A close-up of the lockable front fork suspension, designed to absorb impacts for a smoother ride.

Figure 8: Detail of the dual hydraulic disc brakes, providing strong and reliable stopping power.
7. Troubleshooting
This section addresses common issues you might encounter with your Gotrax F5 electric bike.
| Problem | Possible Cause | Solution |
|---|---|---|
| Bike does not power on | Battery not charged or not properly installed. | Ensure battery is fully charged and securely locked in place. Check connections. |
| Motor not assisting | PAS level too low or throttle not engaged. | Increase PAS level on the LCD display. Ensure throttle is fully engaged if using electric mode. |
| Brakes feel weak | Worn brake pads or hydraulic fluid issue. | Inspect brake pads for wear and replace if necessary. If hydraulic, consult a professional bike technician. |
| Unusual noises during ride | Loose components, dry chain, or debris. | Check all fasteners. Clean and lubricate the chain. Inspect for any foreign objects. |
If you encounter an 'Error 22' or any other persistent issues, please contact Gotrax customer service for assistance.
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | F5 |
| Bike Type | Electric Bike |
| Motor Power | 500W (900W Peak) |
| Battery | 48V 13.6Ah LG Lithium Ion (652.88 Watt Hours) |
| Max Speed | Up to 20 mph (32 km/h) |
| Max Range (Pedal-Assist 1) | Up to 70 miles (113 km) |
| Max Range (Electric Mode) | Up to 28 miles |
| Charge Time | Approx. 5 hours |
| Wheel Size | 20 Inches (Fat Tires) |
| Number of Speeds | 7 (Shimano) |
| Brake Style | Dual Hydraulic Disc Brake |
| Suspension Type | Front |
| Frame Material | Aluminum Alloy |
| Max Load Capacity | 265 Pounds (120 kg) |
| Recommended Rider Height | 4.92-6.56 ft (150-200 cm) |
| Product Dimensions (Unfolded) | 67.7 x 51.5 x 23.6 inches |
| Folded Dimensions | 34.6 x 20.5 x 29.1 inches |
| Item Weight | 66.7 pounds (30.25 kg) |
| Included Components | Charger, User Manual, Installation Tools |
9. Warranty and Support
Gotrax offers a 365-day assurance for the F5 electric bike. If you encounter any problems or require assistance, please do not hesitate to contact Gotrax customer service. They aim to provide satisfactory after-sales service within 24 hours.
For further support, you may refer to the official Gotrax website or the provided PDF user manual:
- Official Gotrax Store: Visit the Gotrax Store on Amazon
- User Manual (PDF): Download PDF Manual




