A Dece Oasis Air 20
A Dece Oasis ADO Air 20 Folding E-Bike User Manual
Model: Air 20
1. Introduction and Overview
Welcome to the A Dece Oasis ADO Air 20 Folding E-Bike user manual. This guide provides essential information for the safe and efficient operation, assembly, and maintenance of your new electric bicycle. The ADO Air 20 is designed for urban commuting and leisure rides, featuring an ultra-lightweight design, a powerful motor, and advanced components for a smooth and comfortable experience.
Key features include:
- 250W high-speed motor with a top speed of 25km/h (15.5 mph).
- Removable 36V 9.6Ah battery offering up to 100KM (62.2 Miles) range.
- Lightweight carbon belt drive system for smoother and quieter transmission.
- Torque sensor for accurate and real-time power assist.
- Front and rear hydraulic disc brakes for enhanced safety and stopping power.
- Integrated LCD display and ADO Smart APP connectivity for monitoring and control.

Figure 1.1: ADO Air 20 Folding E-Bike and its key features.
2. Safety Information
Your safety is paramount. Please read and understand all safety warnings and instructions before operating the e-bike. Failure to do so may result in serious injury or damage to the product.
2.1 General Safety Precautions
- Always wear a helmet and appropriate safety gear when riding.
- Obey all local traffic laws and regulations.
- Perform a pre-ride inspection before each use, checking brakes, tires, and battery.
- Do not ride under the influence of alcohol or drugs.
- Be aware of your surroundings and ride defensively.
- Avoid riding in adverse weather conditions (heavy rain, snow, ice).
2.2 Battery Safety
- Use only the original charger provided with the e-bike.
- Do not expose the battery to extreme temperatures or direct sunlight.
- Do not puncture, drop, or disassemble the battery pack.
- Store the battery in a cool, dry place when not in use.
2.3 Braking Safety
The ADO Air 20 is equipped with hydraulic disc brakes. These provide strong stopping power. Practice braking in a safe area to become familiar with their response. Always apply both front and rear brakes simultaneously for optimal stopping and control.
3. Package Contents
Upon opening the package, please verify that all components are present and undamaged. The e-bike is delivered 90% pre-assembled.
- ADO Air 20 Folding E-Bike (main unit)
- Removable Lithium-Ion Battery (pre-installed or separate)
- Battery Charger
- Tool Kit
- User Manual (this document)
- Pedals (may require attachment)

Figure 3.1: Packaging of the ADO Air 20 E-Bike.
4. Assembly and Setup
Your ADO Air 20 E-Bike comes largely pre-assembled. Follow these steps for final assembly and initial setup.
4.1 Unpacking and Unfolding
- Carefully remove the e-bike from its packaging.
- Place the bike on a stable surface.
- Unfold the frame by releasing the main hinge latch. Ensure it clicks securely into place.
- Raise the handlebar stem and secure its latch.
- Adjust the seat post to your desired height and secure the quick-release lever.

Figure 4.1: The ADO Air 20 in its folded state.
4.2 Attaching Pedals
Identify the left (L) and right (R) pedals. Thread the pedals into the crank arms. Note that the left pedal has a reverse thread. Tighten them firmly using the provided tool.
4.3 Battery Installation and Charging
- If the battery is not pre-installed, slide it into its compartment until it locks securely.
- Connect the charger to the battery charging port and then to a power outlet.
- Charge the battery fully before the first ride. The indicator light on the charger will change when charging is complete.
5. Operating Instructions
Familiarize yourself with the controls and functions of your ADO Air 20 E-Bike.
5.1 Powering On/Off and Display
Press and hold the power button on the LCD display to turn the e-bike on or off. The display shows speed, battery level, assist level, and other riding data.

Figure 5.1: ADO Air 20 LCD Display.
5.2 Pedal Assist System (PAS)
The ADO Air 20 features a torque sensor that provides power assist based on your pedaling effort. There are 3 assist levels. Use the '+' and '-' buttons on the display to cycle through the assist levels. Higher levels provide more motor assistance.
5.3 Hydraulic Disc Brakes
The e-bike is equipped with hydraulic disc brakes on both front and rear wheels. Squeeze the brake levers to engage. Hydraulic brakes offer precise control and strong stopping power in various conditions.

Figure 5.2: Hydraulic Disc Brake System.
5.4 ADO Smart APP Connectivity
Connect your e-bike to the ADO Smart APP via Bluetooth. The app allows you to monitor riding status, view fault maintenance records, and access customer service. Refer to the app's instructions for detailed usage.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your ADO Air 20 E-Bike.
6.1 Cleaning
Clean the e-bike regularly with a damp cloth. Avoid using high-pressure water jets directly on electrical components.
6.2 Belt Drive System
The carbon belt drive requires minimal maintenance compared to traditional chains. Keep it free from excessive dirt and debris. Do not apply lubricants designed for chains.

Figure 6.1: Carbon Belt Drive System.
6.3 Brake Maintenance
Regularly check the brake pads for wear and replace them when necessary. Ensure brake levers have proper tension and the hydraulic system is free of leaks. If you notice reduced braking performance, consult a qualified bicycle technician.
6.4 Tire Pressure
Maintain recommended tire pressure for optimal performance and safety. Refer to the tire sidewall for pressure specifications.
7. Troubleshooting
This section addresses common issues you might encounter. For more complex problems, refer to the ADO Smart APP or contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| E-bike does not power on | Battery not charged or not properly installed. | Ensure battery is fully charged and securely seated. Check connections. |
| Motor not assisting | Low battery, assist level set to zero, or sensor issue. | Charge battery, increase assist level on display. Check for error codes on display. |
| Brakes feel spongy or weak | Air in hydraulic line, worn pads, or fluid leak. | Inspect brake pads. If issue persists, seek professional service for brake bleeding or repair. |
| Unusual noises from belt drive | Debris in belt, misaligned belt, or worn components. | Clean belt. Inspect for damage. If noise continues, consult a technician. |
8. Specifications
Detailed technical specifications for the ADO Air 20 Folding E-Bike.

Figure 8.1: Size Guide & Dimensions.
| Feature | Specification |
|---|---|
| Model | Air 20 |
| Bike Type | Electric Bike, Folding |
| Motor | 250W High-Speed Brushless Motor |
| Battery | 36V 9.6Ah Removable Lithium Ion |
| Max Speed | 25 km/h (15.5 mph) |
| Max Range | Up to 100 KM (62.2 Miles) |
| Brakes | Front & Rear Hydraulic Disc Brakes |
| Transmission | Carbon Belt Drive |
| Sensor | Torque Sensor |
| Display | 180° Full Viewing IPS Colorful Display |
| Frame Material | Aluminum |
| Wheel Size | 20 Inches |
| Product Dimensions (Unfolded) | 158 x 59 x 115 cm |
| Product Weight | 17.5 kg |
| Included Components | Tool Kit |
9. Warranty and Support
A Dece Oasis provides comprehensive support for your ADO Air 20 E-Bike.
9.1 Warranty Information
- Frame Warranty: Ten (10) years.
- Motor, Battery, and Controller Warranty: One (1) year.
Please retain your proof of purchase for warranty claims. The warranty covers manufacturing defects and does not cover damage due to misuse, accidents, or normal wear and tear.
9.2 Customer Support
If you have any questions, require assistance with assembly, or need troubleshooting support, please do not hesitate to contact A Dece Oasis customer service. You can reach us through the multi-channel customer service window available via the ADO Smart APP or visit our official website for contact details.
We aim to reply to all inquiries within 24 hours.
For more information, visit the official website: www.adoebike.com