The Onyx Ultra Rear BMX hubs have quickly become the "Gold Standard" through the racing scene.  The Onyx Ultra instant-engagement hub means no play in the drive system with instant reaction to torque.

FEATURES:

• Ceramic Hybrid bearings
• Instant engagement
• Machined alloy lockring
• Shimano compatible driver fits several cog options including the Onyx Cog (not included)
• 36 Hole
• Titanium female axle bolts

Available with 10mm female bolts, 15mm female bolts or 15mm thru axle.

We offer custom widgets and shell colors as well, contact us for any specialty order