ACB 4545 1125 BO- 1-1/8 Black-Oxide treated Angular Contact Headset Bearing (30.5mm x 41.8mm x 6.5mm: 45x45 deg) AK This ceramic-hybrid radial bottom bracket

This ceramic-hybrid radial bottom bracket bearing features black oxide-treated 52100 high-carbon chromium alloy races

440C stainless steel balls and racesprovide long life and superior corrosion resistance in applications and environments that may be less than ideal

so Enduro carries the loose balls you need to complete the job

This three-piece

ACB 4545 1125 BO- 1-1/8 Black-Oxide treated Angular Contact Headset Bearing (30.5mm x 41.8mm x 6.5mm: 45x45 deg) AK This ceramic-hybrid radial bottom bracketACB 4545 1125 BO 1 1 8 Black Oxide Angular Contact Headset bearing (30. 5mm x 41. 8mm x 6. 5mm: 45x45 deg) Angular contact headset bearing featuring anti corrosion Black oxide Magnetite treated 52100 High Carbon Chromium alloy races paired with grade 10 Balls. Black Oxide treatment provides an extra level of corrosion resistance and extended worry free performance This size bearing is also known in the bike Industry by these part numbers: MR042 870E