Rear hub Ultra ISO

Machined from high-quality aluminium, the rear hub ONYX Ultra SS offers BMX riders the renowned quality of ONYX products made in the USA. It features the ONYX instant engagement system, allowing for direct engagement with no friction while pedalling. It is mounted on hybrid ceramic bearings that have a very low coefficient of friction and excellent power transfer. It is designed for riders using a frame that allows for the installation of a 20 mm diameter axle at the rear. It is also equipped with a 6-bolt ISO disc mount for riders wishing to switch to disc brakes.

FEATURES:
• 7075-T6 aluminium CNC machined body
• Sealed hybrid ceramic bearings
• ISO disc rotor mount
• Aluminium freehub body - standard ONYX SS
• Instant engagement ONYX
• Aluminium axle body
• Axle diameter: 20 mm thru-axle
• Width: 110 mm
• Drilling: 36 holes
• Weight: 575 g