Onyx ULTRA BMX SS rear hub come standard with Ceramic Hybrid bearings and Titanium bolts! Instant, silent and near-frictionless!
Comes with four axle options:
- 10mm (3/8) Bolt-On
- 15mm Bolt-On
- 15mm Thru Bolt (included)
- 20mm Thru Bolt (included)
Uses Only Onyx Ultra SS Cog (not included.)
Hole Count: 36H












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