Hobie Doan signature cassette hub. CNC machined 6061 aluminum hub shell with offset flange sizes and 2 larger precision-sealed cartridge bearings. Laser-etched Griffin logo. 1-piece chromoly driver with 3 pawls and 3 teeth per pawl for more precise engagement. Hollow 14mm male axle with chromoly axle nuts. Includes Primo drive side and non-drive side plastic hub guards. 36 hole.