1. Important Safety Information
⚠ Disclaimer:
- Please be aware of potential fire risks associated with batteries and strictly follow the instruction manual for charging and storage.
- Always wear appropriate protective equipment, such as a helmet, when operating the e-bike.
- Comply with all applicable local laws and regulations regarding electric bicycle use.
General Safety Guidelines:
- Before each ride, check the tire pressure, brake functionality, and ensure all quick releases and fasteners are secure.
- Ensure the battery is properly installed and locked before riding.
- Do not operate the e-bike under the influence of alcohol or drugs.
- Be aware of your surroundings and ride defensively.
- Avoid riding in extreme weather conditions or on excessively slippery surfaces.
2. Product Overview
The SAMEBIKE RS-A02 is a versatile folding electric fat tire mountain bike designed for various terrains, including flat roads, gravel, beach, and snow. It features a powerful motor, long-range battery, and full suspension system for a comfortable and dynamic riding experience.

Figure 2.1: SAMEBIKE RS-A02 Electric Bike (White Model)
Key Features:
- Motor: 1200W High Speed Brushless Motor
- Battery: 48V 17AH Lithium-ion Battery
- Tires: 20*4.0 inch KENDA Fat Tires
- Brakes: Piston Hydraulic Disc Brakes
- Suspension: Dual Adjustable Full Suspension System
- Display: High-brightness LCD Color Display (YL-90V-H) with USB charger
- Gears: Shimano 7-speed Shifting System (TZ500GSD)
- Frame: 20" Aluminum Alloy 6061 Folding Frame
- Lighting: LED High Brightness Headlights and Taillight with Stoplight
Product Components:

Figure 2.2: Labeled Diagram of Main Product Components
- Gear Derailleur
- Display
- Brake Handle
- Headlight
- Suspension Fork
- Disc Brake
- Tire
- Pedal
- Central Shock Absorber
- Alloy Chain Wheel
- Flywheel
- Motor
- Rear Rack
- Saddle
- Folding Clasp
- Battery
3. Setup and Assembly
Unfolding the E-bike:
The SAMEBIKE RS-A02 features a foldable design for easy transport and storage. Follow these steps to unfold your e-bike:

Figure 3.1: 3 Steps to Unfold the E-bike
- Release the Folding Clasp: Locate the folding clasp on the main frame and release it.
- Unfold the Frame: Carefully unfold the main frame until it locks into place. Ensure the clasp is securely fastened.
- Adjust Handlebars and Seat: Adjust the handlebar stem and seat post to your preferred riding height and secure them firmly.
Initial Battery Charge:
Before your first ride, fully charge the 48V 17AH Lithium-ion battery. Connect the charger to the e-bike's charging port and then to a power outlet. The indicator on the charger will show the charging status (typically red for charging, green for fully charged).
Pre-Ride Checks:
- Tires: Check tire pressure. The KENDA 20*4.0 inch fat tires are designed for various terrains; ensure they are inflated to the recommended pressure for optimal performance and safety.
- Brakes: Test both front and rear hydraulic disc brakes to ensure they are functioning correctly and provide adequate stopping power.
- Fasteners: Verify that all bolts, nuts, and quick releases (including the folding clasp, handlebar stem, and seat post) are tightened securely.
- Lights: Confirm that the front LED headlight and rear LED taillight (with stoplight function) are working.
4. Operating Instructions
Riding Modes:
The SAMEBIKE RS-A02 offers three distinct riding modes to suit your preference and terrain:

Figure 4.1: Three Riding Modes
- Electric Mode: Turn on the power and rotate the throttle to engage the motor for full electric driving. This mode provides maximum assistance without pedaling.
- Assist Mode (PAS - Pedal Assist System): Turn on the power and begin pedaling. The motor will automatically engage to provide assistance, making pedaling easier. The level of assistance can typically be adjusted via the display.
- Cycling Mode: Turn off the power and ride the e-bike like a traditional bicycle, using only pedal power.
LCD Display (YL-90V-H):
The intelligent colorful LCD display provides real-time information about your e-bike's status. It typically shows:

Figure 4.2: Intelligent Colorful LCD Display
- Gear: Current pedal assist level or gear.
- Speed: Current riding speed.
- Waterproof Indicator: Indicates waterproof status (if applicable).
- Headlights: Indicates if headlights are on/off.
- Electricity: Battery charge level.
- Mileage: Trip distance or total odometer reading.
- The display also includes a USB charger for convenience.
Gear Shifting (Shimano 7S):
Use the Shimano TZ500GSD 7-speed derailleur to shift gears manually, allowing you to adapt to different inclines and riding conditions. Shift smoothly to avoid strain on the drivetrain.
Lighting System:
- Front LED Headlight: Provides high brightness and a wider lighting range for safer riding in dark conditions.
- Rear LED Taillight with Stoplight: Enhances visibility from the rear and illuminates brighter when braking, improving safety.

Figure 4.3: Rear LED Taillight with Stoplight
5. Maintenance
General Cleaning:
- Regularly clean your e-bike with a damp cloth. Avoid using high-pressure washers directly on electrical components.
- Keep the chain clean and lubricated to ensure smooth shifting and prolong its lifespan.
Battery Care:
- Charging: Always use the original charger provided. Do not overcharge the battery. Disconnect the charger once the battery is full.
- Storage: If storing the e-bike for an extended period, charge the battery to about 50-70% and store it in a cool, dry place. Recharge it every 1-2 months to prevent deep discharge.
- Avoid exposing the battery to extreme temperatures (hot or cold).
Brake System:
The e-bike is equipped with HD-E500 dual pump hydraulic disc brakes. Regularly check the brake pads for wear and ensure the hydraulic fluid levels are adequate. If you notice reduced braking performance, consult a qualified bicycle mechanic.
Tire Maintenance:
Periodically check the KENDA 20*4.0 inch fat tires for wear, punctures, and proper inflation. Maintaining correct tire pressure is crucial for ride comfort, efficiency, and safety.
Suspension System:
The double shoulder aluminum alloy motorcycle suspension fork with lock and central shock absorber provide full suspension. Keep the suspension components clean and free of debris. Refer to a bicycle mechanic for any adjustments or repairs to the suspension system.
6. Troubleshooting
This section provides solutions to common issues you might encounter. For problems not listed here or if solutions do not resolve the issue, please contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| E-bike does not power on. | Battery is not charged or not properly connected. | Ensure battery is fully charged and securely inserted. Check power button on display. |
| Motor not providing assistance. | E-bike is in Cycling Mode, PAS level is too low, or a sensor issue. | Switch to Electric or Assist Mode. Increase PAS level on the display. Check for error codes on the LCD display. |
| Brakes feel weak or spongy. | Worn brake pads, air in hydraulic lines, or low fluid. | Inspect brake pads and replace if worn. If hydraulic issues are suspected, consult a professional mechanic. |
| Unusual noises during riding. | Loose components, dry chain, or debris in drivetrain. | Check all fasteners. Clean and lubricate the chain. Inspect for any foreign objects. |
| Display not working correctly. | Loose connection or internal fault. | Check all cable connections to the display. If issue persists, contact support. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | RS-A02-FT |
| Frame | 20" Aluminum Alloy 6061 Large Tube 099 Four-Link Suspension Folding Frame |
| Front Fork | Double Shoulder Aluminum Alloy Motorcycle Suspension Fork with Lock |
| Battery | 48V 17AH Lithium Battery (DMC 18650 cells) |
| Motor | 48V 1200W High Speed Brushless High Power Fat Tire Motor |
| Derailleur | TZ500GSD Shimano 7S |
| Display | YL-90V-H Middle Colorful LCD Display + USB Charger |
| Driving Mode | T001 Electrical / 5 Speed PAS |
| Brakes | HD-E500 Dual Pump Hydraulic Disc Brake |
| Saddle | PU Widened Vacuum Comfortable Saddle |
| Tires | 20*4.0 inch KENDA Wide Fat Tires with Reflective Rims |
| Rim | Magnesium Alloy Rim (12 lines) |
| Torque | >65 N.m |
| Max Speed | CE 25km/h, UL 32km/h, Max: 45Km/h |
| Assistant Power Range | 90-120 km |
| Pure Electric Range | 50-55 km |
| Mudguard | PVC All-Inclusive Adjustable Mudguard |
| Rear Carrier | Aluminum Alloy ED Thickened Rear Carrier |
| Light Set | Front LED Lights, Rear LED Brake Lights, Wheel Reflectors |
| Wiring | Vehicle Quick Release Waterproof Wiring |
| Net Weight (N.W) | 33 kg (72.7 lbs) |
| Gross Weight (G.W) | 38 kg |
| Carton Size | 146*28*70 cm |
| Certification | CE |
| Rated Passenger Capacity | Two Seat |
| Recommended Height | 5'3" - 6'3" |
| Max Load Capacity | 330 LBS |
| Origin | Mainland China |

Figure 7.1: Product Dimensions and Rider Information
Note: The range data is based on certain conditions. Actual range will be affected by loading, riding mode, road condition, and weather.
8. User Tips
- Tire Choice: The bike comes equipped with Kenda fat tires, which are excellent for adapting to various terrains like flat roads, gravel, beach, and snow. Adjust tire pressure according to the terrain for optimal grip and comfort.
- Seat Adjustment: Take time to adjust the saddle height to ensure a comfortable and efficient pedaling position, especially for longer rides.
- Riding Modes: Experiment with the three riding modes (Electric, Assist, Cycling) to find the best balance of effort and assistance for your journey. Use Electric mode for effortless cruising and Assist mode to extend your range while still getting exercise.
- Display Usage: Utilize the LCD display to monitor your speed, battery level, and mileage. The integrated USB charger is convenient for keeping your devices powered on the go.
9. Warranty and Support
Warranty Service:
Important parts such as the battery and motor are covered by a one-year free replacement warranty. Consumable parts are available for purchase at a fee.
Customer Support:
For any questions, technical assistance, or to purchase spare parts (such as extra batteries, tires, or brakes), please contact the seller's customer service. Provide your product model (RS-A02) and purchase details for efficient support.





