Electric Folding Bike ADO Air 20S
The first 20-inch folding e-bike with carbon belt drive, torque sensor, and hydraulic suspension

Who is this electric folding bike best suited for?
The ADO Air 20S folding electric bike is an ideal choice for daily urban cyclists, students, and travelers looking for an exceptionally light, clean, and reliable mode of transport. Its compact folding frame and low weight of just 18 kg make it incredibly easy to carry up stairs, store in an office, or transport in a car boot or on public transport. It is suitable for riders with heights ranging from 150 cm to 200 cm, ensuring wide usability for the whole family.

Carbon Belt-Drive – No rust or lubrication
Forget dirty, greasy chains and constant maintenance. The ADO Air 20S is equipped with an advanced Carbon Belt drive, ensuring quiet, smooth, and clean operation. The belt is rust-resistant and lasts between 20,000 and 30,000 km of operation without the need for lubrication or servicing. Your clothes will stay perfectly clean during your commute, and power transfer to the wheel is direct and extremely efficient.

Smart Torque Sensor and Brushless Motor
At the heart of the propulsion system is an advanced smart torque sensor that precisely detects the force of your pedal pressure and instantly adjusts motor assistance in milliseconds. This allows for a completely natural riding experience without jerky starts. Even when riding uphill or starting from a standstill, you will immediately receive optimal support from the brushless hub motor, which in its road-legal version develops 250 W of power and torque up to 37 Nm (the international version reaches a maximum power of 350 W and torque up to 42 Nm).

Portable and Powerful Battery with Range up to 100 km
The bike uses a high-quality portable battery with a capacity of 36V 9.6 Ah, elegantly hidden in the seatpost. The battery can be easily removed and charged anywhere – at home or in the office. With a full charge, which takes between 4 and 6 hours, you can travel up to 100 km in optimal conditions. The battery also meets the stringent UN 38.3 lithium-ion battery testing standards.

Front Hydraulic Suspension for Superior Comfort
Compared to classic rigid folding bikes, the ADO Air 20S features front hydraulic forks (Hydraulic Shock Absorber Fork). The suspension effectively dampens vibrations and impacts when riding over bumps, gravel, or cobblestones, significantly reducing arm and back fatigue and ensuring an exceptionally stable and comfortable urban ride.

Powerful Hydraulic Disc Brakes
Top-tier hydraulic disc brakes ensure safe and quick stopping in all weather conditions. They provide consistent braking force with minimal effort on the brake lever, giving you complete control over the bike on dry, wet, and slippery urban surfaces alike.

Color IPS Display and Smart ADO App with Navigation
The integrated 2.4-inch color IPS display boasts high brightness, allowing for excellent readability of speed, range, and assistance level data even in direct sunlight. The display has a high water protection rating of IPX7. Via Bluetooth, you can connect to the smart ADO Smart APP, which allows you to monitor riding statistics and transmit navigation directions directly to the bike's display.

Ultralight Aluminum Frame and Easy Folding
The bike's frame is made from lightweight and structurally optimized aluminum. The net weight of the bike is just 18 kg (without accessories), allowing for easy one-handed lifting. The bike folds in just a few seconds to compact dimensions of 86 x 52 x 68 cm, enabling storage in the narrowest corners of your home or office. Despite its lightweight design, the bike has a high load capacity of up to 120 kg.

20-inch Puncture-Proof Tires and Safe Lighting
The bike is equipped with robust 20-inch tires with a width of 1.95 inches, which are puncture-protected and offer excellent grip on urban streets and well-maintained gravel paths. For excellent visibility at night or in poor weather, a bright front headlight with an illumination of 1200 lumens and **E-Mark** certification ensures visibility, is water-resistant to IPX5 standard, and a reflector is installed at the rear for added safety.
What do you receive with your purchase?
- Folding Electric Bike ADO Air 20S
- Removable battery 36V 9.6 Ah
- Battery charger 42V 2A
- Pair of mudguards (for front and rear wheel)
- Assembly and installation tools
- User manual
- Warranty: 2 years warranty on the bike frame and 12 months on the controller, motor, battery, fork, steering tube, handlebars, charger, pedals, sprocket, and rear swingarm.
- Service and technical support are provided at Tržaška cesta 222, 1000 Ljubljana.
Technical Specifications
| Model | ADO Air 20S (Folding Electric Bike) |
| Rated Motor Power | CE version: 250 W / International version: 250 W |
| Max Motor Power (Peak Power) | CE version: 250 W / International version: 350 W (use of international version is restricted to private areas) |
| Battery | Portable, 36V / 9.6 Ah (hidden in seatpost) |
| Torque | CE version: 37 Nm / International version: 42 Nm |
| Charging Time | 4-6 hours |
| Charger | 42V 2A |
| Maximum Range | Up to 100 km |
| Speed | Up to 25 km/h (electronically limited for road use) |
| Display | 2.4-inch IPS color display (IPX7 waterproof) |
| Suspension | Front hydraulic suspension (Hydraulic Shock Absorber Fork) |
| Transmission / Drive | Single speed, Carbon Belt |
| Braking System | Hydraulic disc brakes |
| Tires | 20 x 1.95 inches (puncture-resistant) |
| Pedal Assistance | Smart torque sensor |
| Assistance Levels | 3 levels of electric assistance (0-3 levels of pedaling) |
| Frame | Ultra-light aluminum frame |
| Front Light | IPX5 waterproof, 1200 lumens, E-Mark IPX5 headlight |
| Rear Light | Reflector |
| Pedals | Folding pedals |
| Suitable Rider Height | 150 cm - 200 cm |
| Operating Temperature | -10°C to 50°C |
| Net Weight | 18 kg (includes battery, without accessories; tolerance +/- 3%-5%) |
| Gross Weight | 24 kg (includes battery and all accessories; tolerance +/- 3%-5%) |
| Maximum Permitted Load Capacity | 120 kg |
| Dimensions of folded bike | 860 mm (length) x 520 mm (width) x 680 mm (height) |
| Certifications | SGS CE, SGS UKCA, EN15194, UN 38.3, Machinery Directive (2006/42/EC), EMC Directive (2014/30/EU), Radio Equipment Directive (2014/53/EU), DIN EN 15194:2017 |
| Geometric Dimensions of the Bike (mm) | |
| A - Seat Tube Length | 370 mm |
| B - Head Tube Length | 330 mm |
| C - Top Tube Length | 630 mm |
| D - Fork Length | 310 mm |
| E - Reach | 420 mm |
| F - Max Seat Height | 960 mm |
| G - Min Seat Height | 740 mm |
| H - Total Length | 1560 mm |
| I - Max Handlebar Height | 1150 mm |
| J - Min Handlebar Height | 1020 mm |
| K - Standover Height | 600 mm |
| L - Wheel Diameter | 510 mm |
| M - Wheelbase | 1060 mm |
| N - Chainstay Length | 410 mm |
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