Throttle and public-road use in Great Britain
A 250W label or 25km/h setting alone does not establish EAPC compliance. The complete cycle must have usable pedals, no more than 250W maximum continuous rated motor power, an assistance cut-off at 15.5mph, and the required markings and safety equipment. Walk assist limited to 3.7mph (about 6km/h) is outside the throttle type-approval requirement. A twist-and-go cycle introduced after 1 January 2016 that can propel itself without pedalling beyond walk-assist speed requires type approval or individual approval, even if it meets the EAPC power and speed limits. An approved twist-and-go EAPC can still be treated as a pedal cycle; a throttle does not automatically make every bike unlawful.
Using pedal assist, avoiding the throttle or choosing a lower display setting does not establish compliance. Department for Transport guidance also treats cycles with a selectable mode capable of motor propulsion above 15.5mph as motor vehicles. Where the supplied configuration or required approval has not been verified, do not use the bike on public roads or cycle paths as an ordinary EAPC. Use only on suitable private land with permission unless the applicable road-use requirements are met. Read the official EAPC and throttle guidance.
Looking for an electric mountain bike without spending £700+? We've compared three Aairsk models in UK stock to help you find the right balance of price, range and capability for 2026.
Aairsk GT900 – Best Value Full-Suspension Pick (£489.99)
The Aairsk GT900 is our top pick for anyone wanting genuine dual suspension without a premium price tag. It pairs a 250W motor with a 36V 13Ah battery, 26-inch wheels and Shimano 21-speed gearing, giving an estimated 30-40km range in throttle mode or 40-60km with pedal assist. Front and rear suspension take the edge off potholes and uneven trails, and the 21-speed drivetrain keeps pedalling efficient on hills.
Aairsk GT300 – Lighter Everyday Alternative (£429.99)
The Aairsk GT300 is the more affordable, city-focused sibling to the GT900. It's built for commuting and leisure riding rather than off-road trails, with a smaller 36V 10Ah battery. If your riding is mostly pavement and towpath rather than bridleway, it's worth comparing against the GT900 before you buy — see our full GT300 vs GT900 comparison for a detailed side-by-side.
Aairsk XT90 – Step Up for Longer Rides (£669.99)
If you want more range and a bigger battery, the Aairsk XT90 moves up to a 48V 20Ah battery for an estimated 45-100km range depending on mode, alongside the same dual suspension and 21-speed Shimano setup as the GT900. Note that the XT90's higher-power configuration is supplied for private-land use rather than public roads — check the product page for the current specification before ordering.
UK E-Bike Law At A Glance
A 250W label does not establish road legality. The complete cycle must meet EAPC requirements, including its continuous motor rating, assistance cut-off, usable pedals and any required throttle approval. The GT300, GT900 and XT90 listings describe throttles; the XT90 also describes a selectable higher-speed mode. We have not verified these supplied configurations as road-use EAPCs.
Next Steps
Browse our full electric bikes range, or read our electric bike buyer's guide for help choosing between throttle, pedal-assist, and hybrid riding modes.