1. Introduction
Welcome to the Aairsk RS5 Folding Electric Bicycle user manual. This guide provides essential information for the safe assembly, operation, maintenance, and troubleshooting of your new e-bike. Please read this manual thoroughly before your first ride to ensure optimal performance and safety.

Image: The Aairsk RS5 Folding Electric Bicycle, highlighting its 500W motor, 48V 15Ah battery, 22MPH max speed, 35 miles range, and 14*2.15 inch tires.
2. Important Safety Warnings
⚠️ 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.
- Do not operate the e-bike under the influence of alcohol or drugs.
- Ensure all components are securely fastened before each ride.
- Avoid riding in heavy rain or extreme weather conditions.
- Properly dispose of batteries according to local regulations.
3. What's In The Box
Upon unpacking, please verify that all the following items are included:

Image: Visual representation of all items included in the Aairsk RS5 package.
- Ebike x 1
- Battery x 1
- Battery Charger x 1
- Battery Key x 1
- Ebike Remote Controller x 1
- Phone Holder x 1
- Tool Set x 1
4. Product Specifications
| Feature | Specification |
|---|---|
| Model Number | Aairsk RS5 |
| Certification | CE, UL 2849 Safety Certified (Battery) |
| Motor | 500W Brushless Rear Motor (750W Peak) |
| Max Speed | 22 MPH (35 KM/H) |
| Climbing Ability | 25° |
| Torque | 55 Nm |
| Battery | 48V 15Ah Lithium Battery (Removable, IP65 Waterproof) |
| Range per Charge | 20-35 Miles (32-56 km) in Pedal Assist Mode |
| Full Charge Time | 5-7 Hours |
| Wheel Size | 14*2.15 Inch Vacuum Tire |
| Brakes | E-ABS Front and Rear Dual Disc Brakes |
| Physical Characteristics | |
| Suspension | Upgraded Shock-Absorbing System |
| Display | Intelligent LCD Digital Display with Auto Backlight |
| Security Features | Remote Keyless Unlock, Anti-theft System, Battery Lock |
| Folding Dimensions | 35*26 Inches (approx. 89 x 66 cm) |
| Unfolded Dimensions | 120cm (L) x 110cm (H) x 55cm (W) approx. |
| Net Weight | 66 lbs (30 kg) |
| Max Load Capacity | 300 lbs (136 kg) for rider, 360 lbs (163 kg) total with passenger seat |
| Recommended Rider Height | 4'9" - 5'9" (145 cm - 175 cm) |
| Additional Features | Phone Holder, USB Charge Port, Integrated Headlight & Rear Light, Adjustable Handlebar, Adjustable Saddle, Removable Passenger Seat |

Image: Detailed dimensions and ergonomic design features of the Aairsk RS5 e-bike.
5. Setup and Assembly
Your Aairsk RS5 e-bike comes mostly pre-assembled. Follow these steps for final assembly and initial setup:
- Unfolding the Bicycle:
- Carefully remove the e-bike from its packaging.
- Locate the main frame hinge and release the locking mechanism.
- Unfold the frame until it clicks into place, then secure the locking mechanism.
- Unfold the handlebars and secure the stem locking mechanism. Adjust the handlebar height as desired.
- Unfold the pedals if they are folded.

Image: The Aairsk RS5 in its folded state, showcasing its portability.
- Battery Installation & Charging:
- Ensure the battery is fully charged before first use. Connect the charger to the battery and then to a power outlet. The charger indicator will show charging status (e.g., red for charging, green for full).
- The battery is removable and secured with a lock. Use the provided battery key to unlock and remove/install the battery.
- Once charged, slide the battery into its compartment and lock it securely with the key.

Image: Close-up of the 48V 15Ah Lithium Battery, highlighting its removable design with lock, UL 2849 safety certification, and IP65 waterproof rating.

Image: Steps for removing and installing the 48V 15AH removable battery.
- Adjusting Seat and Handlebars:
- Adjust the seat post height for a comfortable riding position, ensuring your feet can touch the ground when stopped. Secure the quick-release lever.
- Adjust the handlebar angle and height for optimal control and comfort.
- Brake Check:
- Test both front and rear brakes to ensure they are functioning correctly and provide adequate stopping power.

Image: Close-up of the dual disc brakes, emphasizing their safety and effectiveness.
6. Operating Your E-bike
- Power On/Off:
- Press and hold the power button on the LCD display to turn the e-bike on or off.
- LCD Display & Controls:
- The intelligent LCD display shows real-time monitoring data such as speed, battery level, and pedal assist level.
- Use the control buttons near the display to cycle through information and adjust settings.

Image: The smart LCD display, phone holder with USB charging, and remote key for unlocking and anti-theft features.
- Pedal Assist Modes:
- The e-bike features 3 speed levels for pedal assist. Select the desired level using the display controls.
- Level 1 provides minimal assistance, while Level 3 offers maximum power.
- Throttle Operation:
- The e-bike can also be operated using the throttle for pure electric power without pedaling.
- Remote Key & Anti-theft:
- Use the provided remote key to lock and unlock the e-bike wirelessly within 98 feet.
- The anti-theft system provides an additional layer of security.
- Lights & USB Charging:
- Activate the integrated headlight and auto brake taillight for visibility.
- Utilize the USB charge port on the handlebars to charge your mobile devices.

Image: Overview of safe design features including digital display, phone holder with USB, headlight, taillight, and E-ABS disc brakes.
7. Maintenance and Care
- Battery Care:
- Charge the battery regularly, even if not in use, to prolong its lifespan.
- Store the battery in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid fully discharging the battery frequently.
- Cleaning:
- Clean the e-bike with a damp cloth. Avoid using high-pressure washers directly on electrical components.
- Keep the motor and battery areas free from dirt and debris.
- Brakes:
- Regularly check brake pads for wear and replace them as needed.
- Ensure brake levers are responsive and provide firm stopping power.
- Tires:
- Maintain proper tire pressure as indicated on the tire sidewall.
- Inspect tires for any punctures or excessive wear.
- General Inspection:
- Periodically check all bolts and fasteners for tightness.
- Lubricate the chain regularly.
- Inspect cables and wiring for any signs of damage.
8. Troubleshooting
Here are some common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| E-bike does not power on | Battery not charged or not properly installed; loose connections. | Ensure battery is fully charged and securely locked in place. Check all visible connections. |
| Motor not providing assistance | Low battery; pedal assist level set to zero; sensor issue. | Charge battery. Increase pedal assist level on the display. Check for any error codes on the LCD. |
| Brakes feel weak | Worn brake pads; loose brake cables; air in hydraulic system (if applicable). | Inspect and replace brake pads. Adjust brake cable tension. If issues persist, consult a professional. |
| Unusual noises during operation | Loose components; dry chain; motor issue. | Check all fasteners. Lubricate the chain. If noise is from the motor, contact support. |
9. User Tips
- For maximum range, utilize the pedal assist modes and avoid relying solely on the throttle.
- The folding design makes it convenient for commuting and storage. Practice folding and unfolding a few times to become proficient.
- The removable passenger seat can be useful for carrying small cargo or a second rider within the weight limit. Remember the total load capacity is 360 lbs.
- Regularly check tire pressure for a smoother ride and better battery efficiency.
Note: No specific user tips were available from provided reviews or Q&A. These are general recommendations based on product features.
10. Warranty and Support
The Aairsk RS5 Folding Electric Bicycle comes with a 1-Year Warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.
For technical support, warranty claims, or spare parts, please contact the seller, First Choice Ebike Store, through the platform where you made your purchase. Provide your model number (Aairsk RS5) and a detailed description of the issue to expedite service.
For general inquiries or to view more products, you can visit the First Choice Ebike Store homepage.