USB ceramic bearings for Campagnolo H11 and Record 11-speed Ultra-Torque carbon cranksets.

Outer diameter: 37 mm
Inner diameter: 25 mm
Thickness: 6 mm

Ultra Smooth Bearings (USB)
Extremely smooth running and reliability have always been the hallmarks of Campagnolo hubs and wheels. In order to offer ambitious road bike enthusiasts the best of the best, the Campy Tech Lab has devoted itself to the development of the USB ceramic bearings with an almost manic attention to detail.

In order to reduce energy loss as much as possible and to enable an almost loss-free transfer of power to the road, absolutely smooth surfaces and minimal friction are required. With the USB deep groove ball bearings, maximum corrosion resistance and reduced weight are added to further increase competition performance. Comparative tests show that bearings with USB technology are 50 % smoother than standard bearings.

2x deep groove ball bearings incl. sealing rings