Race Face Turbine-R 30 Boost Rear Wheel Rally Ready Approved. Because were riders too, the ultimate goal is always to make a wheel wed be stoked to ride. Its gotta be built right so that its strong, sturdy, with no hassles, and fast as hell. The Turbine R30 is that wheelset. Now lets rally! Yew! Up Up And Alloy - A stiff and durable 6069 welded Alloy rim with a 30mm inner width makes these lightweight, burly wheels just what your Enduro build is begging for. No Joke Spokes - An offset spoke bed laced with reliable, double-butted straight pull spokes provides ideal wheel stiffness and balance. 5 spare spokes included. Hub A Dub Dub - The unsung hero of the wheelset, the super high engagement Vault hub delivers big time performance and durablity for long-lasting shredability. Specification Nipples - Black Alloy Nipples. Spoke Butting - 2.0 / 1.5 / 2.0. Spoke Head Type - Straight Pull. Int Rim Width (MM) - 30. Ext Rim Width (MM) - 33.5. Spoke Count - 28. Spoke Lacing - 3X. Spoke Offset (MM) - 3. Tubeless - Tubeless Ready. Includes - 5 extra Spokes included with Rear Wheels. Color - Stealth. Material - 6069 Aluminum.