* Front hub converts easily from 9mm quick release to 20mm through-axle (conversion included) * Rear hub an be converted from 135mm spacing to 142mm with conversion kit Sealed cartridge bearing hubs, International Standard 6-bolt rotor mount Double wall welded and pinned 32mm 7075 alloy disc-only rim with eyelets Freehub is 8-10 speed Shimano/SRAM compatible Replacement 15mm or 20mm axle conversion kits sold separately