ACB 3645 3344 SS - 1-1/8 440C Stainless, Angular Contact Headset Bearing (33x44x5.5-36/45) TH-873 Enduro angular Contact (A/C) bearings

Enduro angular Contact (A/C) bearings engage all of the bearing's balls to spread the force over a larger surface area

While every other ceramic bearing rolls best the day you install it and then declines

you won’t struggle with creaks and other noises

though the ID of this bearing is 1mm larger than standard 6903

Lightweight alternative to traditional chain whips

ACB 3645 3344 SS - 1-1/8 440C Stainless, Angular Contact Headset Bearing (33x44x5.5-36/45) TH-873 Enduro angular Contact (A/C) bearingsACB 3645 3344 SS 1 1 8 440C stainless steel Angular Contact Headset Bearing (33mm x 44mm x 6mm: 36 x 45 deg) Angular contact headset bearing featuring 440C stainless steel balls and races for superior corrosion protection. This size bearing is also known in the bike Industry by these part numbers: ACB3344H6 AC3344 Not all stainless steel is created equal. Enduro only uses 440C stainless steel balls and races to provide long life and superior corrosion