ACB 3645 CC BO 1-1/8" Angular Contact Black Oxide treated Headset bearing (30.2mm x 41mm x 6.5mm: 36x45 deg) - Angular-contact headset bearing featuring anti-corrosion Black Oxide/Magnetite coated 52100 High-Carbon...
The Enduro line of angular-contact headset bearings starts with Black Oxide treated chromium Steel races, steps up to full 440C stainless steel, and the top of the line is, lifetime-guaranteed,...