The worlds strongest, lightest, & most compact Rock Racing hub.

In 2008, we set out to build the ultimate Rock Racing machine. Dubbed The Rock Bug, this concept vehicle pushed the industry in terms of ultra high strength & lightweight design, creating a host of new product possibilities that would take our sport to an all new level. Today, we are proud to release the Pro Series Hub, a product design that was vital in the continued success of the Rock Bug. Without question, the Pro Series Hub is a game changer by becoming the strongest, lightest, & most compact hub in class.

Drive plate.
Forget traditional drive slugs, the Pro Series Hub utilizes the superior design of a heat treated chromoly drive plate. By using a drive plate, torque is transmitted from the axle shaft directly to the wheel studs. With the use of shouldered 11/16" chromoly "gun drilled" wheel studs on a 6 x 5-1/2" bolt circle, the Pro Series Hub drive plate delivers unmatched strength at a fraction of the bulk & weight.

Cone spacer.
As if massive 3" Timken bearings and left & right hand threaded spindle nuts were not enough, each assembly is equipped with a heat treated chromoly cone spacer which ensures precision control over bearing pre-load.

Compact.
Unlike other OEM & aftermarket hubs, the Pro Series Hub is designed ground up to be as compact as possible, maximizing the rock racing benefits of having a tight scrub radius. From spindle to wheel mount surface, the Pro Series Hub measures an industry leading 3.125".

Lightweight.
An entire Pro Series Hub, bearings and all, weighs in at an amazing 14.79 lbs, making it the lightest Rock Racing Hub in class. By comparison, this is roughly 8.5 lbs. lighter than our already lightweight 1 Ton Unit Bearing. Make no mistake, the ultra light weight design of the Pro Series Hub is a testament to solid engineering and not a compromise in strength & longevity.

This Pro Series Front Hub is designed to bolt onto Pro Series & Ultimate Knuckles.