SAMEBIKE 20-inch Folding Electric Bicycle (Model CY20-FT) User Manual

1. Important Safety Information

Read this manual thoroughly before operating your SAMEBIKE electric bicycle. Failure to follow instructions can result in serious injury or property damage. Keep this manual for future reference.

• Always wear a helmet that meets safety standards.
• Obey all local traffic laws and regulations.
• Perform a pre-ride inspection before each use.
• Do not ride under the influence of alcohol or drugs.
• Be aware of your surroundings and ride defensively.
• Ensure the battery is securely locked before riding.
• Do not modify the e-bike's electrical system or motor.
• Keep hands and feet away from moving parts.
• Avoid riding in heavy rain or extreme weather conditions.
• Children should not operate this electric bicycle.

2. Product Overview

The SAMEBIKE CY20-FT is a 20-inch folding electric bicycle designed for urban commuting and leisure rides. It features a powerful motor, a removable battery, and a comfortable, adjustable design.

Figure 2.1: The SAMEBIKE CY20-FT electric bicycle, displayed in its unfolded state with a front basket, and a smaller inset showing the bicycle in its compact folded configuration.

Key Features:

• 250W Brushless Motor for efficient power assistance.
• 36V 12Ah Removable Battery offering extended range.
• 20-inch wheels suitable for various terrains.
• Hydraulic Disc Brakes for reliable stopping power.
• Folding frame for easy storage and transport.
• Adjustable seat and handlebars for rider comfort.
• Three riding modes: Pure Electric, Pedal Assist, and Pedal.

3. Setup and Assembly

Your SAMEBIKE electric bicycle comes mostly pre-assembled. Follow these steps to complete the setup and prepare for your first ride.

3.1 Unfolding the Bicycle

1. Carefully remove the bicycle from its packaging.
2. Locate the main frame hinge and release the safety latch.
3. Unfold the frame until it locks into place. Secure the safety latch.
4. Unfold the handlebar stem and secure it with its quick-release lever and safety latch.
5. Adjust the handlebar height and angle for comfortable riding.

3.2 Battery Installation and Charging

Figure 3.1: The removable 36V 12Ah battery for the SAMEBIKE electric bicycle, highlighting its features including approximately 62 miles (100 km) autonomy, 6.6 lbs (3 kg) net weight, and waterproofing.

1. Insert the fully charged battery into its compartment on the frame.
2. Ensure the battery is securely locked using the provided key.
3. To charge, remove the battery or plug the charger directly into the charging port on the bike.
4. Connect the charger to a power outlet. The indicator light on the charger will show charging status (usually red for charging, green for fully charged).
5. Do not overcharge the battery. Disconnect once fully charged.

3.3 Adjusting Seat and Handlebars

Figure 3.2: Details of the SAMEBIKE electric bicycle, illustrating the adjustable comfort saddle, the convenient step-through frame, the bright rear brake light for safety, and the dual disc brake system.

• Seat Height: Loosen the quick-release lever on the seat post. Adjust the seat to a height where your feet can comfortably touch the ground when stopped, or where your leg has a slight bend at the knee when the pedal is at its lowest point. Secure the quick-release lever.
• Handlebar Height/Angle: Adjust the handlebar stem height and angle for a comfortable and ergonomic riding position. Ensure all quick-release levers are tightened before riding.

4. Operating Instructions

Familiarize yourself with the controls and riding modes before your first ride.

4.1 Powering On/Off and Display

Figure 4.1: Overview of the SAMEBIKE electric bicycle's handlebar controls, featuring the light and horn buttons, a 7-speed mechanical shifter, a thumb throttle, and a central digital display providing essential ride information like speed, battery level, and current riding mode.

• Power On: Press and hold the power button on the display unit.
• Power Off: Press and hold the power button again.
• Display: The digital display shows current speed, battery level, odometer, trip distance, and pedal assist level.

4.2 Riding Modes

The SAMEBIKE CY20-FT offers three distinct riding modes:

1. Pure Electric Mode: Use the thumb throttle to propel the bicycle without pedaling. This mode provides up to 40 km (25 miles) range on a full charge.
2. Pedal Assist Mode (PAS): The motor provides assistance as you pedal. Adjust the assist level on the display. This mode extends the range to over 60 km (37 miles).
3. Pedal Mode: Ride the bicycle like a traditional bike without any motor assistance.

4.3 Shifting Gears

The bicycle is equipped with a 7-speed mechanical shifter. Use the shifter on the right handlebar to change gears according to terrain and desired speed. Shift to a lower gear for climbing hills and a higher gear for flat terrain or downhill riding.

4.4 Braking System

The SAMEBIKE CY20-FT features hydraulic disc brakes for effective stopping power. The left lever controls the rear brake, and the right lever controls the front brake. Apply both brakes simultaneously for optimal stopping performance. Avoid sudden, hard braking, especially with the front brake, to prevent skidding.

Figure 4.2: The front suspension fork of the SAMEBIKE electric bicycle, indicating its suitability for various terrains including city roads and flat dirt paths, enhancing ride comfort and control.

5. Maintenance

Regular maintenance ensures the longevity and safe operation of your electric bicycle.

• Tires: Check tire pressure before each ride. Maintain recommended pressure (usually indicated on the tire sidewall). Inspect for wear and punctures.
• Brakes: Regularly check brake pads for wear and ensure brake levers operate smoothly. Adjust brake cables if necessary or have hydraulic brakes serviced by a professional.
• Chain: Keep the chain clean and lubricated to ensure smooth shifting and prevent rust.
• Battery Care:
  • Charge the battery regularly, even if not in use, to maintain its health.
  • Store the battery in a cool, dry place.
  • Avoid fully discharging the battery frequently.
  • Do not expose the battery to extreme temperatures.
• Frame and Components: Periodically check all bolts, nuts, and quick-release levers for tightness. Clean the frame with a damp cloth.
• Motor: The brushless motor is generally maintenance-free. Keep it clean and free from debris.

Figure 5.1: Internal diagram of the SAMEBIKE electric bicycle's 250W brushless motor, illustrating its 35NM torque and a rated speed of 15.5 MPH (25 km/h).

6. Troubleshooting

This section addresses common issues you might encounter with your SAMEBIKE electric bicycle.

7. Specifications

Detailed technical specifications for the SAMEBIKE CY20-FT electric bicycle.

Figure 7.1: Technical diagram showing key dimensions (e.g., min/max height, wheelbase, folding length), recommended rider height (4'7"-5'8"), bicycle weight (61.7 lbs / 28 kg), and maximum load capacity (330 lbs / 150 kg) for the SAMEBIKE electric bicycle.

8. Warranty Information

SAMEBIKE provides a 365-day warranty covering manufacturing defects from the date of purchase. This warranty does not cover normal wear and tear, misuse, accidents, or unauthorized modifications. Please retain your proof of purchase for warranty claims.

9. Customer Support

For technical assistance, warranty claims, or general inquiries, please contact SAMEBIKE customer support. Refer to the contact information provided with your purchase or visit the official SAMEBIKE website.

When contacting support, please have your model number (CY20-FT) and purchase date readily available.