Introduction
Welcome to the COSWHEEL GT20 Pro Electric Bike user manual. This manual provides essential information for the safe and efficient operation, assembly, and maintenance of your new electric bike. Please read this manual thoroughly before your first ride to ensure proper usage and to maximize your riding experience.
The COSWHEEL GT20 Pro is a high-performance electric motorcycle-style bike designed for adults, featuring a powerful dual 3000W peak motor, dual 48V 40AH removable batteries, and a robust aluminum alloy frame. It offers multiple riding modes and advanced safety features for a versatile and enjoyable ride.
Image: The COSWHEEL GT20 Pro Electric Bike, showcasing its robust frame and design.
Safety Information
Your safety is paramount. Always wear a helmet and appropriate safety gear when riding. Adhere to all local traffic laws and regulations. This electric bike is UL 2849 Certified, indicating compliance with electrical system safety standards for e-bikes.
- Pre-Ride Check: Before each ride, inspect tires, brakes, battery, and all fasteners to ensure they are in good working order.
- Braking: The GT20 Pro is equipped with efficient dual hydraulic disc brakes. Practice braking in a safe area to familiarize yourself with their response.
- Battery Safety: Use only the provided charger. Do not expose the battery to extreme temperatures or puncture it.
- Riding Conditions: Be mindful of road conditions, especially in wet or uneven terrain. The 20" x 4.0" fat tires provide good grip, but caution is always advised.
- Weight Limit: Do not exceed the maximum load capacity of 150KG (Safety load ≤120KG).
Package Contents
Upon unboxing, please verify that all components listed below are present and undamaged:
- COSWHEEL GT20 Pro-40AH Ebike x 1
- Tool Bag x 1
- Fender x 2
- Charger x 1
- User Manual x 1 (This document)
If any items are missing or damaged, please contact COSWHEEL customer service immediately.
Setup and Assembly
The COSWHEEL GT20 Pro electric bike is delivered 80% pre-installed to simplify the assembly process. The included tool bag and user manual will assist you. An installation tutorial video is also available from COSWHEEL to guide you through the remaining steps.
Key Assembly Steps:
- Handlebar Installation: Secure the handlebar to the stem, ensuring all bolts are tightened according to the instructions.
- Pedal Attachment: Attach the left and right pedals to their respective crank arms. Note that pedals are typically marked 'L' for left and 'R' for right.
- Fender Installation: Mount the front and rear fenders using the provided hardware.
- Battery Insertion: Ensure the removable batteries are securely inserted into their compartments.
- Tire Inflation: Inflate tires to the recommended pressure indicated on the tire sidewall.
- Rear Suspension Adjustment: The rear suspension features three holes for adjustment, allowing you to freely adjust the ebike height to suit your preference and riding style. Refer to the diagram below for guidance.
Image: Diagram illustrating the three adjustment points for the rear suspension, allowing for height customization.
After assembly, perform a thorough safety check of all components before your first ride.
Components Overview
Familiarize yourself with the key components of your COSWHEEL GT20 Pro:
- Dual Brushless Motors: Located in the front and rear wheels, providing a combined peak power of 3000W.
- Dual Removable Batteries: Two 48V batteries (25Ah + 15Ah) for extended range, located within the frame.
- LCD Display: A large-sized display on the handlebar shows speed, headlight status, fault codes, and battery level.
- Twist Throttle: For electric mode acceleration.
- Dual Hydraulic Disc Brakes: Front and rear braking system for reliable stopping power.
- Dual Suspension Shock Absorbers: Front and rear suspension for a comfortable ride over varied terrain.
- Classic Angel Eye Headlights: Provides illumination for night riding.
- Front & Rear Turn Signal Lights: For signaling turns and enhancing visibility.
- LED Brake Light: Illuminates when brakes are applied.
- 7-Speed Gear System: Allows for manual pedaling and adapting to different inclines.
Image: Detailed view of the GT20 Pro's key features, including the classic angel eye headlights, large LCD display, dual hydraulic disc brakes, and dual suspension.
Operating Instructions
Riding Modes:
The COSWHEEL GT20 Pro offers three distinct riding modes to suit your preference and terrain:
- Bike Mode: Operate as a traditional bicycle without electric assistance. Power is off, and you rely solely on pedaling.
- Pedal-Assist Mode (PAS): The motor provides assistance as you pedal. This mode extends your range significantly (up to 145 miles) and makes pedaling easier, especially on inclines.
- Electric Mode: Engage the motor fully using the twist throttle. No pedaling is required. This mode provides maximum speed and power (up to 80 miles range).
Image: Visual representation of the three riding modes: Bike Mode (pedaling only), Pedal Assist Mode (pedaling with motor assistance), and Electric Mode (throttle-only operation).
Starting and Stopping:
- Power On: Press and hold the power button on the LCD display to turn on the bike.
- Select Mode: Choose your desired riding mode using the controls on the handlebar.
- Start Riding: Begin pedaling for Pedal-Assist mode, or twist the throttle for Electric mode.
- Braking: Apply the brake levers to slow down or stop. The dual hydraulic disc brakes provide strong stopping power.
- Power Off: Press and hold the power button to turn off the bike when finished riding.
Battery Information
The COSWHEEL GT20 Pro is equipped with dual 48V 40Ah (25Ah + 15Ah) 18650 Lithium-Ion batteries, which are UL certified and feature a Battery Management System (BMS) for optimal performance and safety. The batteries are removable for convenient charging.
Charging the Battery:
- Charging Time: A full charge takes approximately 3.5 to 8 hours.
- Procedure: Connect the charger to the charging port on the bike or directly to the removed battery. Plug the charger into a standard wall outlet. The charger indicator light will change when charging is complete.
- Safety: Only use the charger provided by COSWHEEL. Do not charge in extreme temperatures or unattended for prolonged periods.
Image: Close-up of the COSWHEEL GT20 Pro's 48V 40AH removable battery, highlighting its UL certification and BMS for power saving and overcharge protection.
Maintenance
Regular maintenance ensures the longevity and safe operation of your COSWHEEL GT20 Pro electric bike.
- Cleaning: Clean the bike regularly with a damp cloth. Avoid high-pressure washing directly on electrical components.
- Tires: Check tire pressure before each ride. The 20" x 4.0" fat tires are designed for all-terrain use; inspect them for wear and punctures.
- Brakes: Periodically check brake pads for wear and ensure brake levers provide firm and consistent stopping power. Adjust or replace as needed.
- Chain: Keep the chain clean and lubricated to ensure smooth gear changes and prevent rust.
- Fasteners: Regularly check and tighten all bolts and nuts, especially on critical components like wheels, handlebars, and seat post.
- Storage: Store the bike in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for extended periods, ensure the battery is partially charged (around 50-70%) and recharge it every few months.
Troubleshooting
This section addresses common issues you might encounter with your COSWHEEL GT20 Pro. For more complex problems, please contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Bike does not power on | Battery low or not properly seated; Power button not pressed correctly. | Charge battery; Ensure battery is fully inserted; Press and hold power button firmly. |
| Motor not assisting (Pedal-Assist Mode) | PAS sensor issue; Battery low; Incorrect mode selected. | Check PAS sensor connection; Charge battery; Ensure Pedal-Assist mode is active on display. |
| Throttle not working (Electric Mode) | Battery low; Throttle connection issue; Incorrect mode selected. | Charge battery; Check throttle cable connection; Ensure Electric mode is active. |
| Brakes feel weak | Worn brake pads; Air in hydraulic line; Disc rotor issues. | Inspect and replace brake pads; Consult a professional for hydraulic system bleeding; Check rotors for damage. |
| Unusual noises during ride | Loose components; Dry chain; Bearing issues. | Check all fasteners; Lubricate chain; Inspect wheel and motor bearings. |
Specifications
Detailed technical specifications for the COSWHEEL GT20 Pro Electric Bike:
| Feature | Specification |
|---|---|
| Bike Type | Electric Bike, Electric Motorcycle, Ebike |
| Motor Type | Dual DC Brushless Motor |
| Motor Power | Peak 3000W (Rated 2000W) |
| Battery Type | 18650 Lithium Battery (UL Certified, BMS) |
| Battery Capacity | 48V 40Ah (25Ah + 15Ah) Removable |
| Charging Time | 3.5 - 8 hours |
| Max Speed | Up to 31 MPH (50 km/h) |
| Range (Electric Mode) | Up to 80 Miles |
| Range (Pedal-Assist Mode) | Up to 145 Miles |
| Frame Material | Aluminum Alloy |
| Wheel Size | 20 Inches (20" x 4.0" Fat Tires) |
| Brake Style | Dual Hydraulic Disc Brakes (Front and Back) |
| Suspension Type | Dual Shock Absorbers |
| Number of Speeds | 7-speed gear |
| Max. Loading Capacity | 150KG (Safety load ≤120KG) |
| Overall Size (L*W*H) | 70.8 x 23.6 x 45.3 inches (1730 x 700 x 1100 mm) |
| Net Weight | 51 kg |
| Display | Large-sized LCD Display |
| Special Features | Dual Motor, Dual Removable Battery, Angel Eye Headlight, Turn Signals |
Image: Technical diagram showing the dimensions and key components of the COSWHEEL GT20 Pro electric bike.
Warranty and Support
Each COSWHEEL Ebike comes with a 1-year limited warranty service. This warranty covers manufacturing defects and issues arising from normal use.
For any questions, technical guidance, or warranty claims, please contact COSWHEEL customer service. We are committed to providing professional support and will respond to inquiries within 24 hours.
Important: Please retain the original packaging for some time in case of any issues requiring Ebike return or service.
