ACB 3645 3748 BO - 1-3/8 Black-Oxide treated Angular Contact Headset Bearing (37x48x6.5-36/45) TH-873 Bottom Bracket for T47 Framesets

Bottom Bracket for T47 Framesets and SRAM DUB 29mm Cranksets

Weight - 8

Maxhit Bottom Brackets must be periodically maintained by cleaning and re-greasing to maintain full warranty

Weight - 15

5mm thick 6061 Aluminum Spacer for SRAM DUB Cranksets

ACB 3645 3748 BO - 1-3/8 Black-Oxide treated Angular Contact Headset Bearing (37x48x6.5-36/45) TH-873 Bottom Bracket for T47 FramesetsACB 3645 3748 BO 1 3 8 Angular Contact Headset Bearing (37mm x 48mm x 6. 5mm: 36 45deg). 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. The Enduro line of angular contact headset bearings start with Black Oxide treated Chromium Steel races