The Oxygen S-Cross MTB is a UK-built hardtail e-bike designed for trail riding and longer mixed-surface commutes. Power comes from a 36V 250W rear hub motor (peaking at 576W) paired with a semi-integrated LG-cell battery that lifts out at the turn of a key. Three capacities are offered (10.4Ah, 13Ah and 16Ah), stretching range from around 30 miles up to a claimed 70 miles. A backlit LCD gives six levels of pedal assist, with the motor cutting out at 15.4 mph, so this 250W model is fully road-legal in the UK as an EAPC.
The 6061 aluminium frame runs 27.5″ wheels on Schwalbe Smart Sam tyres, an SR Suntour XCM coil fork soaks up rough ground, and a 27-speed 3×9 drivetrain keeps cadence comfortable on climbs. Shimano MT200 hydraulic discs handle stopping. It weighs 23.3kg with the battery fitted and carries up to 120kg.
- Removable key-lock battery, three capacity choices
- UK road-legal 250W assist to 15.4 mph
- Shimano hydraulic disc braking
- SR Suntour XCM suspension fork
A Closer Look at the Oxygen S-Cross MTB
Oxygen is a British-brand hybrid built for riders who want one bike that copes with trail sections and longer mixed-surface commutes equally well. The 36V 250W rear hub motor (peaking at 576W) pairs with a semi-integrated LG-cell battery that lifts out with a simple key turn — no tools needed for charging indoors. Three capacities are offered (10.4Ah, 13Ah and 16Ah), letting you choose between a lighter bike or maximum range rather than being locked into one battery size.
An SR Suntour XCM coil fork soaks up rough ground on the trail side of its brief, while the 27-speed 3×9 drivetrain gives a genuinely wide gear range for both steep climbs and higher-speed road sections — more range than most single-chainring commuters offer. Shimano MT200 hydraulic discs provide consistent stopping regardless of weather, a meaningful upgrade over cable-operated brakes at this price point.
Who Rides the S-Cross MTB, and Where
This suits riders who want one bike for both trail-adjacent riding and a longer commute that mixes road, towpath and gravel — hence the “MTB Commuter” positioning. With the motor cutting out at 15.4mph and six levels of pedal assist, it’s a fully UK road-legal EAPC requiring no licence, tax or insurance.
Setup & Care
The SR Suntour XCM coil fork needs less frequent servicing than an air fork but should still be checked annually for smooth travel. The wide-range 3×9 drivetrain has more components to keep clean than a single-chainring setup — front derailleur adjustment is worth checking periodically. The key-lock battery system is convenient but keep a spare key somewhere safe, and charge whichever capacity you’ve chosen per the battery’s own guidance.
Oxygen S-Cross MTB: Frequently Asked Questions
Is it road legal, and do I need a licence?
Yes — the motor cuts out at 15.4mph with six pedal-assist levels and a walk-assist mode, making it a fully UK road-legal EAPC. No licence, tax or insurance is required.
Which battery capacity should I choose?
The 10.4Ah option keeps weight down for shorter rides; the 16Ah option is best if you want maximum range (up to a claimed 70 miles) without recharging mid-route. Real-world testing suggests around 44 miles is a realistic average across capacities and conditions.
How do I pay, and is finance available?
We currently accept payment by bank transfer. Card payments are coming soon — finance is planned but not yet live; see our Finance page.
What’s your returns policy?
14-day hassle-free returns on unused bikes in original packaging; faulty bikes receive a free collection. Full terms on our Delivery & Returns page.
How much does it weigh, and what’s the maximum payload?
23.3kg including the battery, with a maximum payload of 120kg.












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