Disc Brake Compatible: yesOver Locknut: 100mmAxle Length: 108mmAxle Diameter & Material: 9mm steelQR Lever aluminumCone Races BorozonCup Races barrel polishedContact Sealing doubleSpoke Holes 36/32 holesSpoke Hole Circle 61mmHub Shell aluminum/annodizedCenter to Flange - Right 21.1Center to Flange - Left 31.7