Sealed Stainless Steel bearings provide extra corrosion protection. The top bearing is our angular contact 1-1/8" bearing. The lower bearing is a proprietary oversized design with inner and outer race chamfers. Both bearings are all stainless construction. Includes both bearings.

440C stainless steel balls and races provide long life and superior corrosion resistance in applications and environments that may be less than ideal. 440C has the highest strength, hardness, and wear resistance of all the standard 440-series stainless alloys with high carbon content.

FITS THE FOLLOWING:
--2008-2009 5 Series Madone frames
--2008-2009 6 Series Madone frames
--2008-2011 4 Series Madone frames