BKC-0649 - TorqTite, Ceramic, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for PF30 Framesets to 30mm Cranksets (over 104mm wide) TH-873 Bottom Bracket bearing featuring 52100

Bottom Bracket bearing featuring 52100 High-Carbon Chromium alloy races paired with Grade 5 Balls with 90% fill

a quick-action 3/8 Zipnut

but is more often used as a pivot bearing

and feature dual-lip seals that ride in a precision micro-groove

This bearing has been used as a suspension pivot bearing by a number of bicycle brands including Orbea and Santa Cruz

BKC-0649 - TorqTite, Ceramic, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for PF30 Framesets to 30mm Cranksets (over 104mm wide) TH-873 Bottom Bracket bearing featuring 52100BKC 0649 TorqTite, Ceramic, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for PF30 Framesets to 30mm Cranksets (for current specification spindles over 104mm wide) You may find the following tools useful for installation and servicing: For bottom bracket installation: BRT 060 MH Bearing press rod and handle set BRT 040 30MM Bottom bracket bearing removal and installation toolkit for 30mm bearings; for use with BRT 060 bearing press BBT