Bottom Brackets

Gutter Seal Technology drastically improves sealing against the elements while reducing seal drag. Mountain and road bike compatible. For use with Sram/TruVativ GXP 2-piece cranks. Fits 68mm and 73mm bottom bracket shells. English threads. Sram GXP English 68/73mm Bottom Bracket

New old stock. Mint condition. 125mm overall length. For use with Shimano Selecta proprietary splined cranks and bottom brackets. Shimano Selecta was a common but short-lived crank design from the late 1970s-early 1980s. Black. Shimano Selecta Bottom Bracket Spindle 125mm - NOS

New old stock. Includes cone, dust cap, locknut, and washer. For use with Shimano Selecta splined bottom brackets. Shimano Selecta Bottom Bracket Cone and Hardware - NOS

New old stock. For use with Shimano Selecta bottom brackets. Left or right available - please select from drop-down menu. Shimano Selecta Bottom Bracket Cup Left or Right - NOS

TruVativ's Howitzer XR Bottom Bracket is built tough for abuse. Sealed, oversize cartridge bearings are used to provide smooth action and extreme durability. For serious downhill-worthy strength, the Howitzer boasts CNC-machined aluminum cups and a chromoly spindle, too. 113mm length / 51mm chainline....

The PowerSpline has a heat treated chromoly 12 spline spindle. 113mm length. For use with Sram/TruVativ PowerSpline cranks. Fits 68mm bottom bracket shell. TruVativ PowerSpline 113mm x 68mm Bottom Bracket

Fair condition. The exact identity and purpose of this part is a mystery, but it appears to be a bottom bracket from an antique tandem bicycle. The housing has both inner and outer bearing surfaces that would allow the whole unit to spin inside the frame bottom bracket shell as well as allowing the spindle...