The Smooth Operator
The Smooth Operator
Dual-Sided Torque Sensor
Fully Compliant Folding Electric Bike
ADO Air 20 Ultra
Lightweight, foldable and beautifully easy to live with, the ADO Air 20 Ultra is a fully compliant electric bike designed for legal everyday riding, travel, commuting and relaxed exploring.
Fully road compliant Approx. 19 kg Folding design Carbon belt drive Automatic 3-speed gears
Simple, legal and low maintenance. A sleek folding eBike for seniors, travellers, caravanners, boaters, commuters and anyone who wants easy electric riding without the fuss.
ADO Air 20 Ultra quick highlights
Convenient riding, without the maintenance headache
The essentials at a glance: legal compliance, folding convenience, automatic shifting, low maintenance, smooth pedal assist and practical range.
Fully Compliant
Designed for legal public riding with 250W pedal assist and assistance limited to 25 km/h.
Folds for Travel
Easy to store in a car boot, caravan, boat, apartment, garage or small storage area.
Lightweight
At around 19 kg, it is light for an eBike and easier to manage than many full-size models.
Auto 3-Speed Gears
No manual shifting. The bike automatically selects the best gear for smooth starts, hills and cruising.
Belt Drive
No greasy chain. Quiet, clean and extremely low maintenance for easy ownership.
Up to 100 km Range
Great for daily rides, relaxed exploring and travel days when you want dependable range.*
*Range may vary depending on rider weight, assist level, terrain, tyre pressure, wind and riding conditions.
Practical portability meets reliable performance
The ADO Air 20 Ultra is a thoughtfully updated folding eBike designed to make everyday riding easy. It is light enough to manage, compact enough to store, and refined enough for comfortable daily use.
It is a great choice for seniors, caravanners, boaters, commuters, apartment dwellers and travellers who want a clean, quiet and low-maintenance eBike that is easy to take with them.
With its 250W Bafang motor, intelligent automatic 3-speed internal gear system, torque sensor and carbon belt drive, the Air 20 Ultra delivers smooth assistance without the mess and maintenance of a traditional chain.
Intelligent automatic gearing
World-first 3-speed automatic internal gear system
The ADO Air 20 Ultra removes the guesswork from gear changes. Its intelligent 3-speed internal gear system automatically selects the right gear for the ride, helping starts, hill climbs and cruising feel smoother and more efficient.
No Manual Shifting
The bike automatically chooses the best gear for smooth, efficient riding.
Better Starts & Hills
Low-speed torque is 24% higher than traditional 2-speed motors.
Responsive Mid-Speed
A new 1:1 mid-speed gear improves acceleration from 13–19 km/h.
Smooth AI Control
AI-assisted control and dynamic speed management help keep shifts and acceleration smooth.
Great for Seniors
Smooth pedal assist, automatic gearing and a low-maintenance belt drive make riding simple and relaxed.
Perfect for Caravans
Folds down for easier storage when travelling, camping or exploring new towns.
Handy for Boaters
Compact storage makes it useful for marinas, coastal stops and short local trips from the boat.
Ideal for Commuters
Fold, ride, store and charge with less fuss than a full-size commuter eBike.
Why choose the ADO Air 20 Ultra?
- Fully compliant and legal for public riding when used in accordance with local eBike rules.
- Lightweight folding design for easy transport and compact storage.
- World-first intelligent 3-speed automatic internal gear system.
- Clean carbon belt drive with no greasy chain and very low maintenance.
- 250W Bafang motor for smooth, efficient and compliant pedal assistance.
- Advanced torque sensor for natural and responsive assistance.
- Removable seatpost battery for convenient indoor charging.
- Hydraulic disc brakes for confident stopping and everyday control.
Legal, compliant and ready for everyday riding
The ADO Air 20 Ultra is supplied as a compliant electric bicycle with a 250W motor and pedal assistance limited to 25 km/h.
That means you can enjoy a proper eBike experience without the uncertainty of off-road-only models or private-property restrictions.
Almost no drivetrain maintenance
Instead of a traditional chain, the Air 20 Ultra uses a carbon belt drive. It is quiet, clean and does not need chain oil.
For riders who want convenience, this is a major advantage: less mess, less upkeep and more time riding.
Key features
Frequently asked questions
Lightweight, legal and easy to own
Fold it, ride it, store it — simple.
The ADO Air 20 Ultra is a sleek, fully compliant folding eBike for riders who want portability, automatic shifting, comfort and almost no drivetrain maintenance.
Contact Sun Chaser eBikes
Every Detail Perfected
Carbon Belt and Dual-Sided Torque Sensor
- Quiet, clean and maintenance-free riding
- Precisely senses pedaling force to deliver natural and seamlessly integrated assistance
Colored LCD screen
- NFC Power On/Off
- Tap & Go in 1.7 seconds
Tektro Hydraulic Disc Brakes
Powerful, responsive braking for better control and safety.
MIK Aluminum Rear Rack
Lightweight and durable, compatible with ADO and MIK accessories for versatile use.
Integrated Headlight
Slick design, improved waterproofing
20" All-Terrain Reflective Tyres
Tyres with reflective sidewalls for improved grip and enhanced visibility at night
FAQs
Yes, it is fully compliant with EN 15194 CE standards and meets Australian public use regulations.
The carbon belt is maintenance-free, lasts up to 30,000 km, and eliminates the need for lubricating chains, providing a cleaner and quieter ride.
Compared to the previous aluminum rear rack, the new MIK-compatible rack offers several upgrades:
- Compatible with ADO original accessories as well as universal MIK accessories, providing greater versatility.
- Lighter in weight with a cleaner, more streamlined design.
- Integrated with a rear light, eliminating the need for separate installation and reducing exposed wiring.
Yes. The 2025 model uses 20×1.95 tires without reflective sidewalls, while the 2026 model upgrades to 20×2.0 tires with reflective sidewalls for improved grip and enhanced visibility at night.
The integrated GPS module tracks your bike's location and sends instant notifications if the bike moves unexpectedly, helping prevent theft and aiding recovery.
The Samsung 36V/9.6Ah battery provides up to 100 km of range per charge, depending on terrain, rider weight, and assist mode.
Yes, the Bafang motor provides 50 Nm of torque and automatic 2-speed gear shifting, ensuring smooth acceleration and efficient climbing up to 20° gradients.
