1. Introduction
Thank you for choosing the VAKOLE VT4 Folding Electric Bicycle. This manual provides essential information for the safe operation, assembly, maintenance, and troubleshooting of your e-bike. Please read this manual thoroughly before your first ride to ensure proper use and to maximize your riding experience.
The VAKOLE VT4 is designed for urban commuting and leisure rides, offering a convenient and eco-friendly mode of transportation with its powerful motor, long-lasting battery, and versatile riding modes.
2. Safety Instructions
Your safety is paramount. Always adhere to the following safety guidelines:
- Always wear a helmet that meets safety standards.
- Obey all local traffic laws and regulations.
- Perform a pre-ride inspection before each use, checking brakes, tires, and battery level.
- Do not ride under the influence of alcohol or drugs.
- Be aware of your surroundings and ride defensively.
- Avoid riding in adverse weather conditions, such as heavy rain or snow.
- Ensure the battery is securely locked in place before riding.
3. Package Contents
Carefully unpack your VAKOLE VT4 e-bike and verify that all components are present:
- 1 x VAKOLE VT4 Electric Bicycle
- 1 x Removable Battery (pre-installed or separate)
- 1 x Battery Charger
- 1 x Tool Kit
- 1 x User Manual
4. Assembly and Setup
Your VAKOLE VT4 e-bike comes partially assembled. Follow these steps for final assembly and initial setup:
4.1 Unfolding the Bicycle
Carefully unfold the bicycle frame until it locks into place. Secure the handlebar stem and seat post. Ensure all quick-release levers are tightened securely.
Image: The VAKOLE VT4 electric bicycle shown in both its unfolded, ready-to-ride configuration and its compact, folded state for storage or transport.
4.2 Battery Installation and Charging
The 36V 13Ah battery is removable for convenient charging. To install, align the battery with the frame slot and slide it in until it clicks. Use the provided key to lock it in place. For charging, connect the charger to the battery port and a power outlet. A full charge takes approximately 4-6 hours.
Image: Hands demonstrating the installation of the removable 468Wh lithium battery into the frame of the VAKOLE electric bicycle, highlighting its easy-to-access design.
4.3 Handlebar and Pedal Installation
Attach the handlebars and pedals as per the instructions in the quick start guide. Ensure all bolts are tightened to the recommended torque specifications.
5. Operating Instructions
The VAKOLE VT4 offers three distinct riding modes:
- Pure Electric Mode: Engage the throttle for motor-only propulsion without pedaling.
- Pedal Assist Mode: The motor provides assistance as you pedal. There are 5 levels of pedal assist, allowing you to control the amount of power assistance.
- Cycling Mode (No Power): Ride the bicycle like a traditional bike with no motor assistance.
5.1 Powering On/Off
Press and hold the power button on the display panel to turn the e-bike on or off. The display will show battery level, speed, and assist level.
5.2 Shifting Gears
The Shimano Tourney 7-speed mechanical derailleur allows you to adjust your gearing for different terrains and speeds. Shift gears smoothly by pedaling lightly while operating the shifter.
5.3 Braking
The e-bike is equipped with mechanical disc brakes for reliable stopping power. Apply both front and rear brakes simultaneously for effective and safe braking. Avoid sudden, hard braking, especially at high speeds.
Image: A person riding the VAKOLE VT4 electric bicycle on a dirt path, demonstrating its use and highlighting its maximum speed of 25 km/h and range of up to 75 km.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your VAKOLE VT4 e-bike:
- Battery Care: Charge the battery regularly, even if not in use, to maintain its health. Store in a cool, dry place.
- Tires: Check tire pressure before each ride. The 20 x 3.0" fat tires require specific pressure for optimal performance and comfort.
- Brakes: Inspect brake pads for wear and ensure brake levers are responsive. Adjust as needed.
- Chain: Keep the chain clean and lubricated to prevent rust and ensure smooth shifting.
- Cleaning: Use a damp cloth to clean the frame. Avoid high-pressure washing directly on electrical components.
7. Troubleshooting
Here are some common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| E-bike does not power on | Battery not charged or not properly installed | Charge battery fully; ensure battery is securely locked in place. |
| Motor not assisting | Pedal assist level too low; brake lever engaged; loose connection | Increase assist level; check brake levers are fully released; inspect connections. |
| Brakes feel weak | Worn brake pads; cable tension issues | Inspect and replace brake pads; adjust brake cable tension. |
8. Specifications
Detailed specifications for the VAKOLE VT4 Electric Bicycle:
| Feature | Specification |
|---|---|
| Brand | VAKOLE |
| Model | VT4 |
| Motor Power | 250W Brushless Hub Motor |
| Motor Torque | 50 Nm |
| Battery | 36V 13Ah (468 Wh) Removable Lithium-ion |
| Charger Voltage | 42V/2A |
| Charging Time | 4-6 hours |
| Max Speed | 25 km/h (15.5 mph) |
| Pure Electric Range | 45-55 km (28-34 miles) |
| Pedal Assist Range | 60-75 km (37-47 miles) |
| Waterproof Level | IP54 |
| Tires | 20 x 3.0 inch Fat Tires |
| Frame Material | Aluminum Alloy |
| Drivetrain | Shimano Tourney 7-Speed Mechanical Derailleur |
| Brakes | Mechanical Disc Brakes (Front & Rear) |
| Suspension | Lockable Front Fork Suspension |
| Mudguards | Front and Rear Included |
| Max Load Capacity | 120 kg (265 lbs) |
| Rear Rack Max Load | 25 kg (55 lbs) |
| Suitable Rider Height | 160-210 cm (5'3" - 6'11") |
| Net Weight (Bike) | 25.7 kg (56.7 lbs) |
| Battery Weight | 3.5 kg (7.7 lbs) |
| Product Dimensions (Unfolded) | 170 x 60 x 102 cm (67 x 23.6 x 40.2 inches) |
| Folded Dimensions | 87 x 44 x 72 cm (34.3 x 17.3 x 28.3 inches) |
8.1 Motor and Drivetrain Details
Image: A detailed view of the 250W rear hub motor integrated into the wheel of the VAKOLE electric bicycle, emphasizing its compact design.
Image: A close-up shot showing the mechanical disc brakes and the Shimano Tourney 7-speed derailleur system on the VAKOLE electric bicycle, highlighting the braking and gear components.
8.2 Lighting System
Image: A clear view of the front headlight and an inset image of the rear taillight on the VAKOLE electric bicycle, illustrating the integrated lighting system for visibility.
9. Warranty and Support
Your VAKOLE VT4 Electric Bicycle is covered by a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included in your package for specific terms and conditions.
For technical support, spare parts, or warranty claims, please contact VAKOLE customer service. Contact details can typically be found on the VAKOLE official website or on your purchase receipt.
