- Light but strong enough for all types of riding including XC through DH - Forged CNC machined aluminum shell 2 sealed cartridge bearings - International Standard 6-bolt disc rotor mount - End caps for 9x100mm QR available separately - Boost version (HL-3208) is 15x110mm only - Flange diameter: 58mm left/right - Center to flange: 22mm left 30mm right