Enter the Cross-Country world with the X 1900 Spline wheels. The 25 mm wide aluminum rim offers modern tires the support needed to ride low air pressure in order to minimize rolling resistance. Meticulous wheel building by hand ensures the highest quality and reliability, allowing riders to just focus on the moment - whether it is beating the sweat out of their opponents or beating their own KOM or QOM. Spline Hub with Ratchet LN 18T freehub drive system. Intended use = Cross-Country. Tubeless ready, 25mm wide and light rim. Straight-pull hubs/spokes built with a 3-cross pattern. Includes Tubeless Valve and Tape. Item Specifications: Cassette Body Type: / 8, 9, 10 Speed, Cassette Body Type: Dynasys 11 Speed Mountain, Color: Black, Defined Color: Black, Hub/Brake Compatibility: Center-Lock Disc, ISO Diameter: 622 / road / 29", Rear Axle: 12mm Thru x 142mm, Rim Width (Internal): 25, Tire Type: Tubeless Ready Clincher, Valve: Presta, Wheel Size: 29",