ACB 4545 4252 SS - 1-1/2 inch 440C Stainless Angular Contact Headset Bearing - 42mm x 52mm x 7mm; 45 x 45deg AK Enduro Bearings pioneered MAX type

Enduro Bearings pioneered MAX type bearingsover 20 years ago for bicycles to address the challenges associated with mountain bike pivots

Bottom Bracket Bearing featuring 440C stainless steel alloy races and balls with 90% fill

Tora and Argyle

HDC-0018-BK - IS upper headset bearing cap (black)

Included with the kit are seals to protect the bearings from the elements and selection of spacers to allow you to precisely tune your chain-line

ACB 4545 4252 SS - 1-1/2 inch 440C Stainless Angular Contact Headset Bearing - 42mm x 52mm x 7mm; 45 x 45deg AK Enduro Bearings pioneered MAX typeACB 4545 4252 SS 1 1 2 440C stainless steel Angular Contact Headset bearing (42mm x 52mm x 7mm; 45 x 45deg) Angular contact headset bearing featuring 440C stainless steel balls and races for superior corrosion protection. This size bearing has been used as an upper bearing for Acros headsets that are designed specifically for aero cable routing, and is also know by part number AC4252 Not all stainless steel is created equal. Enduro only uses 440C