The Red Zone 5 meets the demands of the modern mountain biker. These wheels have been designed to provide superb performance for long expeditions in the mountains, fast and flowing trail, consistent rock gardens and everything presented by Cross Country riding combined with what your Training schedule can throw at them. This version features Boost hub spacing, which increases the strength and stiffness of the complete wheel build, which is more responsive and forgiving than non-Boost versions. Superb Balance of Weight, Durability, Stiffness & Strength These wheels provide a superb balance between weight and durability while being stiff, strong and reliable. They are ideal for a rider requiring a wheelset that will accompany them on epic adventures while providing the confidence in their construction, reliability and performance. These wheels are designed to merge perfectly with modern mountain bike riding demands. They feature a top-level design but are simple and hassle-free to maintain; you can enjoy the new world of MTB Cross Country wheels, which are capable of so much more. This wheelset features the 'one hub fits all' technology, meaning you can adapt it to fit any dropout standard (end caps sold separately). AFS Axle System Using a disc rotor mount on the hub body and a Thru-axle engagement, Fulcrum has developed an axle system that integrates perfectly with the frame/fork dropouts and provides flex-free performance when putting the power down and optimised stability when applying heavy braking loads to your disc brake calipers. 2-Way Fit This tubeless system is specifically designed for Fulcrum wheels when used in conjunction with Schwalbe Tubeless easy (TL-Easy) clincher tyres.