ADO Air 20S - Folding Electric Bike - 250w

Truth be told, the difference between a good commuter e-bike and a great one often comes down to the details you notice after the first fortnight — not the first test ride. The ADO Air 20S builds on the already-excellent Air 20 with one upgrade that makes a real, tangible difference on UK roads: front fork suspension.

If you’ve ever arrived at work with your hands buzzing from road vibration, or winced through a potholed stretch of cycle path, you’ll understand why this matters. The Air 20S absorbs what the Air 20 passes through — and on the cracked, uneven, not-always-brilliant surfaces that make up a typical British commute, that’s a meaningful improvement in comfort over time.

Everything that made the Air 20 work — kept intact

The carbon belt drive runs silently and needs no oiling — no chain grease on your trousers, no rattling, no maintenance. The torque-sensor pedal assist reads your effort and responds proportionally, so the power feels natural rather than jerky. The step-through folding frame makes it straightforward to get on and off in everyday clothing, and folds down for flat storage, office corners, or train carriages.

Samsung battery, sensible range

The removable Samsung 36V 9.6Ah battery gives you up to 100 km of range — enough for most people’s weekly commuting without needing to charge at work. Hydraulic disc brakes provide reliable stopping in wet conditions. At 18 kg, the Air 20S is still light enough to carry without drama.

Right, let me be direct: if your commute involves any meaningful amount of uneven surface — and most UK commutes do — the Air 20S is worth the upgrade over the base model. The suspension turns a good ride into a noticeably comfortable one.

Front Fork Suspension — The upgrade that separates the Air 20S from the base Air 20. Cushions road vibration and absorbs bumps on cycle paths, cracked tarmac and uneven surfaces — the kind of thing you notice and appreciate every single day.

Carbon Belt Drive — Silent, grease-free, and virtually maintenance-free. No oil, no mess, no chain adjustment. Ideal for anyone who keeps their bike indoors or commutes in work clothing.

Torque Sensor Pedal Assist — Power delivery that responds to your effort in real time. No jerky surges, no over-assistance on flat sections — just smooth, natural support that makes riding feel intuitive.

Step-Through Folding Frame — 18 kg — Easy to mount in everyday clothing. Light enough to carry upstairs or onto a train. Folds down for compact storage in flats, offices and car boots.

Removable Samsung Battery — Up to 100 km — Charge at home or the office. IPX5 waterproofing means you can keep riding when the weather turns, as it tends to in the UK.

• Range - 100 km max range
• Speed - 25 km/h
• Net Weight - 18 kg
• Suspension - Front fork suspension
• Tyre Size - 20*1.95 Inch
• Pedal Assist - Torque sensor
• Assist Intelligent - 0-3 level pedal assist
• Rider Heights - 150cm-200cm
• Weight Capacity - 120kg
• Motor - 250W
• Battery - Samsung 36V/9.6 Ah
• Charging Time - 4-6 hours
• Display - IPS Colour Display
• Torque - 37N.m
• Frame - Lightweight Aluminum Frame
• Brakes - Hydraulic disc brakes
• Wheels - Double Walled Aluminum
• Fork - Hydraulic lockout adjustable fork
• Headlight - IPX5 Waterproof 1200 lumen
• Tail Light - Reflector Tail Light
• Chain Ring - Carbon Belt
• Pedals - Folding Pedals
• Seat - Standard
• Waterproof  - IPX5

What are the differences between the Air 20 and Air 20S?

The short answer is one meaningful upgrade: the Air 20S comes with a hydraulic lockout adjustable fork, giving you proper suspension that you can dial in depending on the terrain. The standard Air 20 runs without suspension. Everything else — motor, battery, drivetrain, weight — is identical between the two. So if your riding is mostly smooth tarmac, the Air 20 does everything you need. If you want a more comfortable, controlled ride over rougher surfaces or potholed roads, the Air 20S is the one to go for.

Is it possible to change speed? Is it weatherproof?

The Air 20s runs a single gear, so there’s no manual shifting involved — but that doesn’t mean the ride is one-dimensional. You have three levels of pedal assist to choose from, and the smart torque sensor reads how hard you’re pedalling and responds instantly, adjusting the power to match the terrain beneath you. That means even if you set off on a hill or hit an incline mid-ride, the assist kicks in immediately without you having to think about it. It’s a more intuitive system than it might sound on paper.

As for the weather — yes, you’re well covered. The Air 20s is rated IPX5 waterproof, the IPS display steps that up to IPX7, and all the electronic components are fully sealed against heavy rain and dust. A wet British commute isn’t going to cause you any problems.

Free Delivery - Order today and you can expect to receive your new bike within 4-5 working days. You will be notified of shipping information once the product has been dispatched.

Warranty - Enjoy a 12 month warranty on the Motor, controller, display & battery. You also get a 5-year warranty on the frame. 

If you have any queries regarding this, you can drop us an email at: sales@ebikesexpress.co.uk