Key Features:RX010 clincher disc road wheel, offering all the technology of Shimano wheels at an economical price.24 mm high profile aluminium rim for improved aero dynamics.Easy to use Centre-Lock rotor mount for use with disc brakes.28 stainless steel round spokes.The hub uses angular contact bearings designed to cradle the balls giving both radial and lateral support for superior strength and durability in real world riding conditions. They also offer precision bearing adjustment and easy maintenance.Labyrinth and contact sealing - low-friction seals effectively shut out water, mud and dirt without affecting rotational smoothness.9, 10 and 11-speed compatible.700C Clincher rim only.Recommended tyre width 25-38C.Supplied with Q/R skewer.