The specilaized roval cl 40 disc 700c front the cl 40 full carbon disc clincher is the perfect all around disc wheel the aerodynamic optimized rim shape slices through the wind while preserving the confident stable handling of a box section rim a wide internal rim width provides an optimal tyre profile for incredibly precise handling and stiffness the centre lock hub is 12mm thru axle or qr compatible and is matched with more economical dt swiss spokes and hub internals specilaized roval cl