2010-13 SKF X-Tracker Hubs

• 33 Spline
• X-Tracker Design
• ZR1 Technology
• 10 Micron Run-out
• Increase Durability 
• Interchangeable from Front to Rear

You gain increased stiffness for better brake performance under high loads. Under race competitive use, you may go an entire season without replacement.  This unit is designed to provide a high stiffness during cornering, reducing piston knock-back and the need to trail brake. It's also designed for durability and to maintain preload at a sustained loading of 1.2g. All this adds to faster lap times and better driver feedback.

The X-tracker, has a double row angular contact ball bearing arrangement. The outboard row has a larger diameter and contains more balls than the inboard row. Its asymmetric design increases load carrying capacity and operational life and raises camber stiffness above that of symmetrical hub units.