Aairsk XT90: A Comprehensive Review of the 2026 Mountain E-bike

Mechanical Components and Gearing

For shifting, the e-bike is equipped with a 21-speed Shimano drivetrain, providing reliable gear changes and a wide range of gears for various riding situations.

Thanks to this, the Shimano drivetrain allows riders to adjust their effort according to terrain, which is crucial for efficient and comfortable riding in diverse mountain environments.

In practice, such a drivetrain is well-established and commonly used in mountain bikes, offering assurance in terms of maintenance and availability of spare parts.

Ergonomics and Load Capacity

Regarding weight, the bike weighs 27.2 kg, which is reasonable for an e-bike with an integrated battery and full suspension, yet still manageable for handling off the bike.

In ergonomic terms, the manufacturer recommends riders between 163 and 190 cm tall, with a saddle adjustable from 80 to 100 cm, ensuring comfortable fit for a wide range of users.

Load capacity is rated up to 150 kg, allowing safe carrying of additional gear or luggage on longer rides.

Frame and Suspension for Off-road Riding

The bike’s construction features a carbon steel frame, providing necessary strength and durability, important for rough mountain riding while keeping the bike relatively lightweight.

Its suspension system includes a front fork and rear shock absorber (full suspension), greatly enhancing comfort and control over uneven terrain by absorbing shocks and smoothing out bumps.

The wheelset features 26-inch KENDA off-road tires with deep tread, suitable for off-asphalt riding, though with slightly higher rolling resistance on hard surfaces.

Safety Features and Controls

Braking safety is improved by disc brakes on both front and rear wheels, delivering effective and reliable stopping power under various conditions, including wet and uneven terrain.

The bike also includes an LCD display with NFC unlocking, which acts as an anti-theft security feature by preventing the bike from starting without the proper key fob.

Further, there are five levels of assistance selectable via the display, allowing riders to tailor motor support to riding needs and terrain conditions, enhancing comfort and efficiency.

In summary, the Aairsk XT90 offers balanced performance and modern features suitable for various off-road challenges. It is appropriate for riders between 163 and 190 cm tall, supporting a maximum weight of 150 kg, with specifications that ensure comfortable and safe riding.