-Odyssey's Race cassette hub features a lightweight aluminum shell, precision sealed bearings, improved axle hardware, a 4 pawl driver and a 3/8" hollow heat-treated chromoly axle. Interchangeable 14, 15 and 16 tooth cogs included. Available in right side drive, 36 hole in black only. The use of axle pegs is not recommended with this hub due to the hollow axle.