1. Important Safety Information
Please read this manual carefully before operating your SAMEBIKE YINYU14-II electric bicycle. Failure to follow instructions can lead to serious injury or damage to the product.
⚠ Disclaimer:
Please mind potential fire risk and strictly follow the instruction manual for charging and storage. While using the product, please wear protective equipment and fully comply with the applicable law and regulations.
- Always wear a helmet and appropriate safety gear when riding.
- Familiarize yourself with local laws and regulations regarding electric bicycles.
- Perform a pre-ride inspection before each use.
- Do not operate the e-bike under the influence of alcohol or drugs.
- Ensure the battery is properly secured and charged according to instructions.
2. Product Overview
The SAMEBIKE YINYU14-II is a compact and versatile foldable electric bicycle designed for urban commuting. It features a powerful motor, a long-lasting battery, and a convenient folding design for easy storage and transport.
3. Setup and Assembly
Your SAMEBIKE YINYU14-II comes partially assembled. Follow these steps to prepare your e-bike for its first ride.
3.1 Unfolding the E-bike
- Carefully remove the e-bike from its packaging.
- Locate the main folding clasp on the frame.
- Release the clasp and gently unfold the frame until it locks into place. Ensure the locking mechanism is fully engaged.
- Adjust the handlebar height (870-1040mm) and saddle height (700-900mm) to your preference. Secure all quick-release levers.
- Attach any accessories like pedals or rearview mirrors if not already installed.
3.2 Initial Battery Charging
Before your first ride, fully charge the 36V 7.8Ah Lithium-ion battery. The charging duration is typically 4-6 hours.
- Connect the charger to the e-bike's charging port.
- Plug the charger into a standard wall outlet.
- The charger indicator light will show charging status (usually red for charging, green for fully charged).
- Disconnect the charger once fully charged.
4. Operating Instructions
Understand the controls and riding modes for a safe and enjoyable experience.
4.1 Controls and Display
The e-bike is equipped with an intelligent LCD display and various controls on the handlebar.
- Key Switch: Turns the e-bike's power on/off.
- Accelerator Handle: Provides power in Pure Electric mode.
- Headlight Switch: Controls the LED headlight.
- Turn Signal Switch: Activates front and rear turn signals.
- Horn: For alerting others.
- Rearview Mirror: For improved visibility.
4.2 Riding Modes
The YINYU14-II offers three riding modes:
- Electric Mode: Turn on the power and use the throttle (accelerator handle) to get full speed.
- Assist Mode (PAS Mode): Turn on the power, step on the pedal, and the motor will automatically provide assistance.
- Cycling Mode: Turn off the power and ride it just like a regular bicycle.
4.3 Braking System
The e-bike is equipped with front and rear mechanical disc brakes for reliable stopping power.
- Always apply both brakes simultaneously for optimal stopping.
- Avoid sudden, hard braking, especially at high speeds or on slippery surfaces.
4.4 Lighting and Signals
For enhanced safety, the e-bike includes LED headlights, taillights, and front/rear turn signals.
5. Maintenance and Care
Regular maintenance ensures the longevity and safe operation of your e-bike.
- Cleaning: Wipe down the frame with a damp cloth. Avoid high-pressure washing directly on electrical components.
- Battery Care:
- Charge the battery regularly, even if not in use, to maintain its health.
- Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures.
- Do not fully discharge the battery frequently.
- Tires: Check tire pressure regularly. The 14-inch tires are suitable for various road conditions (sand, winding, city).
- Brakes: Inspect brake pads and discs for wear. Adjust brake levers as needed to ensure responsive braking.
- Folding Mechanism: Keep the folding clasp and hinges clean and lightly lubricated for smooth operation.
- General Inspection: Periodically check all bolts, nuts, and quick-release levers for tightness.
6. Troubleshooting
This section provides solutions to common issues you might encounter.
| Problem | Possible Cause | Solution |
|---|---|---|
| E-bike does not power on | Battery low or discharged; Key switch off; Loose battery connection. | Charge the battery; Turn on the key switch; Check battery connection. |
| Motor not assisting (PAS mode) | PAS level set to zero; Sensor issue; Loose wiring. | Increase PAS level on display; Check for visible damage to sensors/wires; Contact support if issue persists. |
| Brakes feel weak | Worn brake pads; Loose brake cable; Disc contamination. | Inspect/replace brake pads; Adjust brake cable tension; Clean discs with appropriate cleaner. |
| Unusual noises during riding | Loose components; Chain issues; Bearing wear. | Check all fasteners; Lubricate chain; Inspect wheels and pedals for play. |
If you encounter problems not listed here or if solutions do not resolve the issue, please contact customer support.
7. Specifications
Detailed technical specifications for the SAMEBIKE YINYU14-II electric bicycle.
| Feature | Specification |
|---|---|
| Model Number | YINYU14-T (YINYU14-II) |
| Brand Name | SAMEBIKE |
| Frame Material | 14" High Carbon Steel Foldable Frame |
| Motor | 350W Brushless Motor |
| Max Speed | ≤25 km/h (Max 30 km/h in some conditions) |
| Battery | 36V 7.8Ah Lithium Battery (18650 cells) |
| Charging Duration | 4-6 hours |
| Range per Power | 30-60 km |
| Driving Mode | Pedal Assist / Pure Electric |
| Brakes | Front and Rear Mechanical Disc Brakes |
| Gear | 1 Speed |
| Wheel Size | 14 Inches (14*2.125 inch tires) |
| Waterproof Rating | IP54 |
| E-bike Unfolded Size | 1350 x 605 x 870-1040 mm |
| Folded Size | 730 x 420 x 605 mm |
| Net Weight (N.W) | 21.5 kg |
| Gross Weight (G.W) | 25 kg |
| Max Load Capacity | 100 kg (220 lbs) |
| Max Climbing Angle | 12° |
| Handlebar Height | 870-1040 mm |
| Saddle Height | 700-900 mm |
| Display | Handle LCD Display + Key |
| Lights | LED Headlights, Tail Lights with Front and Rear Turn Signals |
| Rearview Mirror | Yes |
| Certification | CE |
8. Warranty and Support
For warranty information, please refer to the specific terms provided at the time of purchase. If you require technical assistance, spare parts, or have any questions regarding your SAMEBIKE YINYU14-II, please contact the seller or authorized service center.
- Keep your purchase receipt as proof of purchase for warranty claims.
- Do not attempt to repair complex electrical or mechanical issues yourself, as this may void your warranty and pose safety risks.
9. User Tips
- Pre-Ride Check: Always check tire pressure, brake function, and battery level before each ride.
- Folding Convenience: Practice folding and unfolding the bike a few times to become proficient, making it quicker for transport or storage.
- Battery Range: The actual range can vary based on rider weight, terrain, riding mode (pure electric vs. pedal assist), and weather conditions. Use pedal assist more often to extend battery life.
- Visibility: Even with built-in lights, consider wearing reflective clothing, especially when riding at dawn, dusk, or night.
- Adjustability: Take time to find the optimal handlebar and saddle height for your comfort and riding posture.





