Aairsk XT90 Electric Mountain Bike – 48V 20Ah, 250W, Dual Suspension

Free delivery £50+ to England, Scotland & Wales
Usually dispatched within 1 working day
30-day returns

£669.99 ~~£759.99~~

Out of stock

The Aairsk XT90 is the longest-range bike in the Aairsk line-up — a 48V 20Ah battery paired with dual suspension, 26-inch wheels and Shimano 21-speed gearing. £669.99 with free delivery from £50 to England, Scotland and Wales. Held in UK...

Free delivery from £50England, Scotland & Wales · usually 2–3 working days after dispatch

UK warehouse stockDespatched from Cardiff

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The Aairsk XT90 is the longest-range bike in the Aairsk line-up — a 48V 20Ah battery paired with dual suspension, 26-inch wheels and Shimano 21-speed gearing. £669.99 with free delivery from £50 to England, Scotland and Wales.

Held in UK stock, so there is no import wait and no customs charge when it arrives — typically 3–5 working days, often faster.

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.

How fast does it go?

The XT90 has a selectable power specification, and this matters before you buy:

Standard setting: 250W / 25km/h (15.5mph) — listed lower setting; road-use compliance not verified
Unlocked setting: 500W / up to 40km/h (25mph) — private land only

How far will it go on a charge?

This is the XT90's strongest feature. The 48V 20Ah battery gives an estimated 45–60km (28–37 miles) on throttle alone, or 60–100km (37–62 miles) with pedal assist — roughly double what the smaller-battery bikes in the range manage.

Hills, cold weather, tyre pressure, rider weight and how hard you ride all reduce range, so plan against the lower figure. A full charge takes around 6–7 hours.

How long will the battery last?

Expect several hundred full charge cycles — typically around 500–800 for a lithium-ion pack — before capacity noticeably drops, which is several years for most riders. Charge indoors where possible and avoid leaving it flat, or sitting at 100%, for weeks at a time.

Road use and the 500W setting

Road-use compliance has not been verified for the exact supplied configuration. A 250W rating and 25km/h setting alone are insufficient: throttle behaviour, maximum continuous motor rating, selectable modes and any required vehicle approval must also be checked. Do not use this bike on public roads or cycle paths as an ordinary EAPC unless those requirements are confirmed.

The 500W / 40km/h unlocked configuration is not road legal and should only be used on private land with the landowner's permission.

Check the current GOV.UK EAPC rules before riding on public roads, and see our guide on whether a higher-wattage e-bike is legal if limited to 250W.

Specifications

Motor	Selectable 250W / 500W
Battery	48V 20Ah
Standard assisted speed	25km/h (15.5mph)
Unlocked speed	Up to 40km/h (25mph) — private land only
Range (throttle)	45–60km (28–37 miles)
Range (pedal assist)	60–100km (37–62 miles)
Charging time	6–7 hours
Wheels	26-inch
Gearing	Shimano 21-speed
Suspension	Dual — front and rear
Throttle	Thumb throttle
Colour	Black

Range and speed figures are supplier estimates rather than guarantees.

Delivery and returns

Free delivery from £50 to England, Scotland and Wales from UK stock — typically 3–5 working days.
12-month warranty.
14-day right to cancel under the Consumer Contracts Regulations 2013, plus your full rights under the Consumer Rights Act 2015.
Sold by Horizon and Co Solutions Ltd, a UK registered company (No. 16942003, England and Wales).