1. Introduction
Welcome to the Aairsk S600 Adult Travel Ebike user manual. This electric bicycle is designed for urban commuting and weekend adventures, featuring a powerful 250W motor, a long-lasting 36V 13Ah battery, and durable 26-inch tires suitable for various terrains. Please read this manual thoroughly before operating your ebike to ensure safe and optimal performance.
⚠️ Safety Warning: 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.
2. Safety Guidelines
Your safety is paramount. Always adhere to the following guidelines:
- Always wear a helmet and appropriate safety gear while riding.
- Familiarize yourself with local traffic laws and regulations regarding electric bicycles.
- Perform a pre-ride inspection before each use (brakes, tires, battery, lights).
- Do not operate the ebike under the influence of alcohol or drugs.
- Be aware of your surroundings and ride defensively.
- Ensure the battery is securely locked in place before riding.
- Avoid riding in extreme weather conditions or on excessively slippery surfaces.
3. Package Contents
Upon unpacking, ensure all components are present:
- Aairsk S600 Ebike Frame
- Front Wheel
- Handlebar Assembly
- Pedals
- Seat and Seatpost
- Battery (pre-installed or separate)
- Battery Charger
- User Manual (this document)
- Tool Kit (for assembly)
4. Setup and Assembly
Your Aairsk S600 Ebike may require some minor assembly. Follow these general steps:
- Unpacking: Carefully remove all components from the packaging.
- Handlebar Installation: Attach the handlebar to the stem, ensuring it is centered and tightened securely.
- Front Wheel Installation: Install the front wheel, making sure the disc brake rotor is correctly aligned with the caliper. Secure the quick-release skewer or axle nuts.
- Pedal Installation: Identify the left (L) and right (R) pedals. Thread the 'L' pedal counter-clockwise into the left crank arm and the 'R' pedal clockwise into the right crank arm. Tighten firmly with a wrench.
- Seat and Seatpost Adjustment: Insert the seatpost into the frame and adjust the seat height for a comfortable riding position. Ensure the quick-release clamp is securely fastened.
- Initial Battery Charge: Before your first ride, fully charge the battery. Refer to the 'Battery Charging' section for detailed instructions.
- Pre-Ride Check: Before riding, ensure all bolts and quick releases are tightened, brakes are functional, tires are inflated to the recommended pressure, and the battery is fully charged and locked.

5. Battery Charging
The Aairsk S600 is equipped with a 36V 13Ah (468Wh) removable lithium battery with a BMS protection system.
- Removing the Battery: Unlock the battery with the provided key and slide it out of the frame.
- Connecting the Charger: Connect the charger to a standard wall outlet, then connect the charging plug to the battery's charging port.
- Charging Indicator: The charger will typically have an indicator light (e.g., red for charging, green for fully charged).
- Charging Time: A full charge usually takes 5-6 hours. Do not overcharge the battery.
- Re-installing the Battery: Once fully charged, disconnect the charger, slide the battery back into the frame, and lock it securely with the key.


6. Operation
6.1 Powering On/Off
- Power On: Press and hold the power button on the Smart LCD Display.
- Power Off: Press and hold the power button again until the display turns off.
- Card Key Function: Touch the Card Key to the LCD display to unlock the ebike. Touch it again to lock.
6.2 Smart LCD Display
The intuitive control system features a sunlight-readable, real-time display that is easy to operate.


6.3 Pedal Assist System (PAS Modes)
The Aairsk S600 offers adjustable 5-speed PAS modes, allowing you to choose the level of motor assistance:
- Use the '+' and '-' buttons on the display to cycle through the assist levels (1-5).
- Higher levels provide more motor assistance, while lower levels require more pedal effort.
- The maximum speed in PAS mode is 25km/h.

6.4 Gearing
The ebike is equipped with a Shimano 7-speed derailleur for smooth gear changes. Use the shifter on the handlebar to select the appropriate gear for your terrain and desired pedaling effort.

6.5 Braking
The Aairsk S600 features dual disc brakes for reliable stopping power in all weather conditions. Squeeze both brake levers gently and evenly to slow down or stop. Avoid sudden, hard braking, especially with the front brake, to prevent skidding.

6.6 Lights and Reflectors
The ebike is equipped with a front light and a rear reflector to ensure visibility, especially during low-light conditions. Always ensure your lights are functional before riding at night or in poor visibility.

7. Maintenance
Regular maintenance will prolong the life of your Aairsk S600 Ebike and ensure safe operation.
7.1 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.
- Avoid completely draining the battery before recharging.
- If storing for an extended period, charge the battery to 50-70% and check it every few months.
7.2 Tires
- Check tire pressure before each ride. Maintain pressure within the recommended range (usually indicated on the tire sidewall).
- Inspect tires for wear, cuts, or punctures regularly.


7.3 Brakes
- Regularly check brake pads for wear and replace them when necessary.
- Ensure brake levers are firm and responsive. Adjust cable tension if needed.
- Keep disc rotors clean and free of oil or grease.
7.4 Chain and Drivetrain
- Keep the chain clean and lubricated to ensure smooth gear changes and prevent wear.
- Inspect the chain, gears, and derailleur for any damage or misalignment.
7.5 General Cleaning
- Clean the ebike with a damp cloth and mild soap. Avoid using high-pressure washers directly on electrical components.
- Dry the ebike thoroughly after cleaning.
8. Troubleshooting
Here are some common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Ebike does not power on | Battery not charged or not properly installed; loose connections | Ensure battery is fully charged and securely locked. Check all electrical connections. |
| Motor not assisting | PAS level set to 0; brake levers engaged; motor connection issue | Increase PAS level. Ensure brake levers are fully released. Check motor cable connection. |
| Brakes feel weak | Worn brake pads; loose brake cable; air in hydraulic system (if applicable) | Inspect and replace brake pads. Adjust brake cable tension. Consult a bike mechanic for hydraulic brake issues. |
| Unusual noises from drivetrain | Dry chain; misaligned derailleur; loose components | Clean and lubricate the chain. Check derailleur alignment. Tighten any loose bolts. |
If you encounter issues not listed here or cannot resolve a problem, please contact customer support.
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | Aairsk S600 |
| Motor | 250W Brushless Geared Motor |
| Motor Torque | 45 N.M |
| Battery | 36V 13Ah Lithium Battery (468Wh) with BMS Protection System |
| Charging Time | 5-6 hours for full charge |
| Range per Power | 50-75 km (PAS Mode) |
| Max Speed | <25 km/h |
| Wheel Size | 26" x 1.95" Pneumatic Tire |
| Gearing | Shimano 7-Speed Derailleur |
| Brakes | Dual Disc Brakes |
| Suspension | Front Fork Suspension, Comfort Saddle Spring Damper |
| Rated Passenger Capacity | Two Seat |
| Max Load Capacity | 150 kg |
| Bicycle Weight | 26.6 kg |
| Recommended Rider Height | 152-190 cm |
| Certification | CE |
| Origin | Mainland China |



10. User Tips
- Vary PAS Levels: Experiment with different Pedal Assist System (PAS) levels to find the most comfortable and efficient ride for various terrains and desired speeds. This can also help extend battery range.
- Regular Tire Checks: Given the 26"x1.95" durable tires are designed for multiple terrains (city, sand, mud, snow), regularly check for debris embedded in the tread after off-road rides to prevent punctures.
- Cargo Management: Utilize the sturdy rear rack for increased cargo space. When carrying items, ensure they are securely fastened and do not interfere with your balance or the bike's moving parts.
- Comfort Adjustments: The ebike features a wider and larger saddle and comfort saddle spring damper. Take time to adjust the seat height and angle to maximize comfort, especially for longer rides.
- Brake-Lever Engagement: Be mindful of accidentally engaging the brake levers, as this can cut power to the motor in PAS mode. Ensure your hands are positioned correctly on the handlebars.
11. Warranty and Support
The Aairsk S600 Ebike comes with a one-year warranty. For any warranty claims, technical support, or questions regarding your ebike, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.