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
• Disc Brake Compatible 

This is the 15mm thru axle configuration. Thur axles sold separately. 

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