BKSM-8134 - Maxhit, 440C Stainless, T47 Internal 29mm/SRAM DUB Bottom Bracket kit TH-873 Inner Race Width - 19

Inner Race Width - 19

Bearing Bottom Bracket for BB30 Framesets and Shimano 24mm Cranksets

installation may require both tool sizes

The eleven-tooth upper and thirteen-tooth lower size and profile with 5mm bolt-holes are designed as an upgrade for most 11 and 12 speed Shimano GRX 2X rear derailleurs

As expected it is also the most expensive of the 440 series alloys and requires multiple rounds of heat treatment and cryogenic treatment to achieve its superior mechanical properties

BKSM-8134 - Maxhit, 440C Stainless, T47 Internal 29mm/SRAM DUB Bottom Bracket kit TH-873 Inner Race Width - 19BKSM 8134 Maxhit, 440C stainless steel, T47 Internal 29mm SRAM DUB Bottom Bracket kit You may find the following tools useful for installation and servicing: For bottom bracket installation: BBT 52x16 29 Pro Cup socket tool for T47 bottom brackets and SRAM DUB cranksets BBT 010 Bottom Bracket Flat Wrench for 44mm x 16 spline and 52mm x 16 spline GR 009 Enduro MAX bearing grease For bearing removal, servicing, and installation: BBT 52x16 29 Pro Cup