Roval Aero-Flange Road 5 (AFD05-R) disc brake rear hub with updated drilling to the flanges to resolve spoke creaking.Specifications:- Hub Spacing: 142x12mm.- Spoke Count: 24H (8:16).- Spoke Type: T-head straight-pull.- Rotor Mount: Centerlock.- Cassette Body Type: Shimano HG 11-Spd. Road- Freehub Type: DT Swiss Ratchet EXP- Bearing Type: Ceramic sealed cartridge bearings.