Odyssey's Antigram V2 Cassette Hub was designed to be light, strong & still affordable, with in-bound axle bolts & the option to switch between RHD or LHD. The shell is built from forged aluminium for strength with a 17mm chromoly female axle & 14mm 4130 chromoly axle bolts. 6903RS sealed catridge ball bearings let the hub run smooth with a 9t driver with 3-pawl independant springs design & precision caged needle bearings. The Antigram V2 borrows the same replaceable hub guard from the Odyssey Clutch V2 section Product Specs HUB TYPE: Cassette AXLE: Female Chromoly DRIVER: 9t DRIVE SIDE: Left & Right Switchable SPOKE HOLES: 36h WEIGHT: 454g (1lbs)