1. Safety Information
Before operating your Vivi Electric Bike, please read this manual thoroughly. Adhere to all local traffic laws and regulations. Always wear a helmet and appropriate safety gear. Regular maintenance is crucial for safe operation.
- Always wear a certified helmet.
- Perform a pre-ride inspection before each use.
- Understand and practice using all operating modes and controls in a safe, open area.
- Do not operate the bike under the influence of alcohol or drugs.
- Be aware of your surroundings and other road users.
2. Package Contents
Your Vivi Electric Bike package includes the following components:
- Vivi Electric Bike (partially assembled)
- 48V 374.4Wh Removable Lithium-Ion Battery
- Battery Charger
- LCD Smart Meter
- Waterproof Line (for easy accessory replacement)
- Assembly Tools
- User Manual
3. Assembly Instructions
The Vivi Electric Bike arrives approximately 90% assembled. The remaining assembly typically involves attaching the pedals, front wheel, and handlebars. A bike pump for tires will also be needed.
3.1. Attaching the Front Wheel
- Carefully remove the bike from its packaging.
- Align the front wheel with the front fork. Ensure the disc brake rotor slides correctly into the brake caliper.
- Secure the front wheel using the quick-release skewer or axle nuts, ensuring it is centered and tight.
3.2. Installing the Handlebars
- Insert the handlebar stem into the fork's steerer tube.
- Adjust the handlebar height and angle for a comfortable riding position. The handlebars are height and angle adjustable.
- Tighten the stem bolts securely. Ensure the handlebars are aligned with the front wheel.
3.3. Attaching the Pedals
- Identify the left (L) and right (R) pedals.
- The right pedal (R) threads clockwise into the right crank arm.
- The left pedal (L) threads counter-clockwise into the left crank arm.
- Tighten both pedals firmly with a wrench.
3.4. Battery Installation and Charging
The 48V 374.4Wh removable battery can be charged on or off the bike.
- To install, slide the battery into its compartment on the frame until it clicks securely into place.
- To remove, unlock the battery with the key and slide it out.
- Connect the charger to the battery and then to a power outlet. The battery fully charges in 4-6 hours.
Figure 3.4.1: Steps for battery removal and installation. The image illustrates unlocking the seat, lifting it, and then sliding the battery out of the frame.
Figure 3.4.2: The comfort curve handlebar can be adjusted for both height and angle to suit rider preference.
4. Operating Instructions
Your Vivi Electric Bike features multiple operating modes and a 7-speed transmission system for versatile riding.
4.1. Powering On/Off and LCD Display
- To power on the bike, press and hold the power button on the LCD smart meter. Repeat to power off.
- The LCD display shows speed, battery level, assist level, and mileage.
- Long press the meter '+' button to turn on/off the headlight.
Figure 4.1.1: The bright headlight and taillight provide visibility, and the LCD display shows operational data.
4.2. Riding Modes
The bike offers five distinct riding modes:
- Pure Electric Mode (Throttle Mode): Engage the throttle to propel the bike without pedaling.
- Pedal Assist Mode (PAS Mode): The motor provides assistance as you pedal. Select from 5 assist levels using the LCD smart meter.
- Normal Bike Mode: Ride the bike like a traditional bicycle without motor assistance.
- Cruise Control Mode: Maintain a set speed without continuous pedaling or throttle input.
- Walk Assist Mode: Long press the '-' button for 3 seconds, and the motor will gently assist in pushing the bike at walking speed.
Figure 4.2.1: Visual representation of the three primary riding modes: Bike Mode (pedaling only), Pedal-Assist Mode (pedaling with motor assistance), and Throttle Mode (motor only).
Figure 4.2.2: A comprehensive overview of the five working modes: Pure Electric, Pedal Assist, Normal Bike, Cruise Control, and Walk Assist.
4.3. Gear Shifting
The bike is equipped with a professional 7-speed transmission system. Use the trigger shifter on the handlebars to change gears according to terrain and desired speed. Shift smoothly to avoid strain on the drivetrain.
Figure 4.3.1: Close-up of the professional 7-speed gear system and the handlebar-mounted trigger shifter.
4.4. Braking System
The Vivi Electric Bike features front and rear disc brakes for reliable stopping power in all weather conditions. Squeeze both brake levers simultaneously for balanced and effective braking. The electric motor will cut out when braking for added safety.
Figure 4.4.1: Detailed view of the front and rear disc brake calipers and rotors, along with the brake lever on the handlebar.
5. Maintenance
Regular maintenance ensures the longevity and safe operation of your electric bike.
- Tires: Check tire pressure before each ride. Ensure tires are inflated to the recommended PSI. Inspect for wear and punctures.
- Brakes: Regularly check brake pads for wear and ensure brake levers provide firm, responsive stopping power. Adjust as needed.
- Chain: Keep the chain clean and lubricated to ensure smooth gear changes and prevent rust.
- Battery: Charge the battery regularly, even if not in use, to maintain its health. Store the battery in a cool, dry place.
- Fasteners: Periodically check all bolts and nuts for tightness, especially on critical components like wheels, handlebars, and seat post.
- Waterproof Lines: The bike features a detachable waterproof line design, making it easy to replace accessories or components connected via these lines.
- Fenders: Ensure fenders are properly aligned and do not rub against the tires. Adjust if necessary.
6. Troubleshooting
This section addresses common issues you might encounter with your Vivi Electric Bike.
| Problem | Possible Cause | Solution |
|---|---|---|
| Bike does not power on | Battery not installed correctly or discharged; loose connections. | Ensure battery is fully seated and charged. Check all cable connections. |
| Motor not assisting/engaging | Low battery; assist level set to zero; brake levers engaged. | Charge battery. Increase assist level on LCD. Ensure brake levers are fully released. |
| Tires frequently flat or losing air | Puncture; low quality inner tube; improper inflation. | Inspect tires for foreign objects. Replace inner tube if damaged. Ensure proper tire pressure. Consider upgrading inner tubes if issues persist. |
| Brakes feel weak or noisy | Worn brake pads; contaminated rotors; improper adjustment. | Inspect and replace brake pads if worn. Clean rotors. Adjust brake caliper or cable tension. |
| Fenders rubbing against tires | Misalignment during assembly or from impact. | Carefully adjust fender stays to ensure proper clearance from tires. |
7. Specifications
Key technical specifications for the Vivi 26-inch 500W Step-Through Electric City Bike:
| Feature | Detail |
|---|---|
| Bike Type | Electric Bike, Electric Cruiser Bike, Electric City Bike |
| Motor | 48V 500W High-Speed Brushless (Peak 750W) |
| Max Speed | 20 mph (up to 22 mph with pedaling) |
| Battery | 48V 374.4Wh Removable Lithium-Ion |
| Charging Time | 4-6 hours |
| Range (Electric Mode) | 22-25 miles |
| Range (Pedal Assist Mode) | 44-50 miles |
| Frame Material | Carbon Steel |
| Wheel Size | 26 Inches (Double layer aluminum alloy wheels) |
| Gears | 7 Speed Transmission System |
| Brakes | Front and Rear Disc Brakes |
| Suspension | Front Fork Suspension |
| Special Features | Adjustable Seat, LCD Smart Meter, Bright Headlight & Taillight |
| Max Load Capacity | 120 kg (265 lbs) |
| Recommended Rider Height | 5'1" - 6'3" |
| Certifications | SGS certified to UL 2849 |
Figure 7.1.1: Key specifications and dimensions of the Vivi electric bike.
Figure 7.1.2: Information regarding UL 2849 certification for Vivi electric bikes, highlighting safety standards and the risks associated with uncertified products. For certification details, visit SGS Certification.
8. Warranty Information
The Vivi Electric Bike comes with a limited warranty. Please refer to the warranty card included with your purchase or contact customer support for specific terms and conditions regarding coverage and duration.
9. Customer Support
For any questions, concerns, or assistance with your Vivi Electric Bike, please contact our customer support team:
- Phone: +1 888 639 8191
- Working Hours: Monday - Friday, 9:00 AM - 6:00 PM EST
- Email: service.viviebike@gmail.com
Figure 9.1.1: Vivi customer service contact details for support.