Sta-Tru Double Wall Rear Wheels provide a value spec option for your service and repair needs. Double wall rim for duability Compatible with Shimano HG-11 MTN cassettes Hub/Brake Compatibility 6-Bolt Disc , Rim Brake Color Black Wheel Size 29" Cassette Body Type Shimano HG ISO Diameter 622 / Road / 29" Rear Axle QR x 135mm Valve Schrader Rim Width (Internal) 21 Defined Color Black Tire Type Tubeless Ready Clincher