Onyx Ultra BMX Race Rear Hub

Machined to the tightest tolerances. Onyx hubs use sprag internals for strength, extremely low rolling resistance and infinite points of engagement. All Onyx hubs come standard with ceramic hybrid bearings so there is no need to upgrade. Product Specs HUB TYPE:Cassette AXLE:3/8″ DRIVER:NA SPOKE HOLES:37 WEIGHT:TBC