ENDURO ALL 440C STAINLESS STEEL 1.5 INCH 45 X 45 DEGREE ANGULAR CONTACT HEADSET BEARING measures: 40mm ID x 52mm OD x 7mm W

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. Dual lip sealing system.

Replaces the LOWER Headset Bearing in all Works Components headsets for TAPERED steerer tubes.