Onyx Rear Ultra SS BMX Race Cassette Hub cruiser 3/8” axle slots only

3/8” axle slots only

Crupi's Integrated headsets are available in both 1” and 1-1/8” sizes

The PI-2 headset features hybrid aluminum and steel construction

gold and black aluminum parts

8oz (986g)

Onyx Rear Ultra SS BMX Race Cassette Hub cruiser 3/8” axle slots onlyThe Onyx Rear Ultra SS Cassette Hub at J&R Bicycles has been designed to handle the toughest demands and riding styles of some of the best in the business. Featuring a super sized bearing and clutch assembly for maximum torque and power capabilities. The Ultra SS Series is also built to work with all standard axles 10mm (3 8") 20mm thru bolt and fits Onyx's Ultra SS Cogs. With several different color options available, you can add a bit of