Spank SPANK 359 Rear WheelOptimised for downhill (DH) racing, this back MTB wheel is equipped with tubeless tyre compatibility. This allows you to enjoy its superior traction and control, without adding any unnecessary weight to your mountain bike. World Cup DH developed and proven, this model has a low weight that’s optimised for racing. In addition, its unique profile enhances radial compliance, while increasing responsiveness and durability. Its radial compliant design adds traction and reduces wheel deflection, and negative feedback, without compromising strength or lateral stiffness.- World Cup DH developed and proven, tuned rear wheel, weight-optimised for racing.- Unique front profile, enhances radial compliance and reduces weight on the rear wheel, while increasing responsiveness and durability.- Radial compliant design adds traction, and reduces wheel deflection, and negative feedback, without compromise to strength or lateral stiffness.- 30.5mm inner width allows versatile tyre fitting from 2.0” to 2.6” perfectly, without negative squaring off of tyre profiles.Features: Axle Size: 148mm x 12mm (Boost) ERD: 27.5": 560mm; 29": 598mm ETRTO: 27.5": 584x30.5mm; 29": 622x30.5mm Rim Dimensions: Inner: 30.5mm; Outer: 35mm Spokes: J-Hook, tripple butted 2.2/1.8/2.0, brass external nipples Tubeless: Tubeless equipped (tape and valves included) Presta: F/V Presta Configuration: 32H - 3 cross lacing Cassette Compatibility: Shimano/SRAM Option: Shimano/SRAM 9,10 and 11-Speed MTB cassettes (not XD); SRAM Option: SRAM 11 and 12-Speed SRAM XD MTB cassettes Technologies: Radial Compliance, Torsional Strength, Lateral Stiffness, BeadBite Anti-burp, OohBah Inverted Inner Wall Weight: 27.5": 1.1kg (approx); 29": 1.13kg (approx)Buy Spank Wheels & Tyres from Chain Reaction Cycles, the World’s Largest Online Bike Store.