This advanced frame is backed up by easy to use and trail-ready components such as the Box 8-Speed drivetrain with easy climbing gears. This hardtail mountain bike (MTB) also boasts reliable Clarks hydraulic disc brakes and terrain-smoothing SR Suntour XCR32 Air LOR DS air suspension forks. The Vitus Nucleus is the mountain bike you never forget. The one that got you hooked. It’s everything a mountain bike should be – comfortable, reliable and predictable. But above all, it’s fun. The Nucleus is versatile enough to ride anywhere, but you’ll have the best time riding proper trails. It feels just like a mountain bike should, a bike that inspires confidence when riding off-road, over rough ground and when tackling trail obstacles. This is a real mountain bike and a proven performer, but don’t just take our word for it, the Nucleus is a multi award-winner that has been voted £500 Hardtail of the Year four times in a row by MBR Magazine. Riding your first mountain bike requires full trust in the equipment. As the trail twists and turns, rises and falls, you need to feel in complete control. The tried and tested geometry of the Nucleus has reassuring stability and agility that keeps your body relaxed and your smile wide. To match, the bike arrives equipped with high-quality, durable components. The components include Clarks M2 hydraulic disc brakes that are responsive no matter the conditions, a terrain-smoothing SR Suntour XCR32 Air LOR DS air-sprung suspension fork and the no-fuss Box Four drivetrain that ensures the gear shifting is fast and light. But this bike won’t be left behind as your confidence grows. With the award-winning aluminium frame at its core, you will be able to fully customise and upgrade the setup to best suit your riding style and keep your mountain biking skills rolling forward. Your first mountain bike should arm you with everything required to enjoy this sport. To set you on your way to unlocking the excitement of riding trails. The Nucleus is not off-the-shelf, it’s tailored specifically for the needs of a new mountain biker. Features: Frame: Nucleus Aluminium 6061-T6 BSA Threaded BB, IS Disc Brake Mounts, 135mm x 9mm QR Fork: SR Suntour XCR32 Air LOR DS 120mm Travel, 27.5″, 1 1/8″ Straight Steerer, Post Mount Brake Mounts, 100mm x 9mm QR, Air Spring Headset: Neco ZS44/28.6 upper & ZS56/28.6 lower Handlebar: Nukeproof Neutron V2 Riser 6061 Alloy, 25mm Rise, 9° Back Sweep, 760mm Wide S/M, 780mm Wide L/XL 31.8mm Stem: Vitus 50mm Alloy, 50mm Reach, 3° Rise Grips: Vitus Lock On Front Rim: WTB ST I30 TCS 2.0, 27.5″, 32h TCS Tubeless Tape Fitted Rear Rim: WTB ST I30 TCS 2.0, 27.5″, 32h TCS Tubeless Tape Fitted Front Hub: Vitus KT K68F 32h, 6 Bolt, 100x 9mm QR Rear Hub: Vitus KT K68R, 32h, 6 Bolt, 135x 9mm QR Front Tyre: Maxxis Ardent 27.5×2.25″ Rear Tyre: Maxxis Ardent 27.5×2.25″ Spokes: Stainless Steel Chain: Box Four 8-Speed, 110 links Crankset: Samox 170mm, 32T Narrow Wide chainring Bottom Bracket: Samox, BSA Threaded BB, 73mm shell Front Brake: Clarks M2 hydraulic disc brake Rear Brake: Clarks M2 hydraulic disc brake Rotors: Clarks M2 180mm front, 160mm rear, 6-bolt Rear Derailleur: Box Four 8-Speed Wide, limited-slip clutch Rear Shifter: Box Four 8-Speed Multi Shifter Cassette: Sunrace 11-42T, 8-Speed Saddle: Vitus, Black, Steel Rails Seat Post: Vitus 6061 Alloy, 31.6x400mm Seat Screw: Vitus Bolt 34.9mm Weight: Small: 13.4kg Built, Tuned and Ready to Ride Rest assured that each bike is fully built and tuned by Wiggle’s team of qualified bike mechanics to ensure your bike arrives in perfect condition. We supply all bikes with a set of plastic pedals, a pedal wrench and a multi-tool kit. Find out which size fits you by clicking the size chart tab. Please Note: Due to ongoing issues in the global bike supply chain, manufacturers may substitute certain component items due to availability. In this situation, they will be replaced with the same quality or better performing parts.