Bottom Brackets

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....

New old stock. 118mm length. For use with Octalink cranks. Fits 73mm bottom bracket shell. Shimano LX/XT level quality match. Shimano BB-ES70 118mm x 73mm Octalink Bottom Bracket - NOS

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

Two machined aluminum cups offer increased durability and bearing life, while keeping a simple press together method for installation and maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement. Bearings: Enduro ABEC-3 Color: Black Bottom...

New old stock. 109.5mm length. For use with Octalink cranks. Fits 68mm bottom bracket shell. Shimano Ultegra level quality match. Shimano BB-6500 Ultegra 109.5mm x 68mm Octalink Bottom Bracket - NOS

External English (BSA) threaded bottom bracket for 68mm and 73mm shells. Enduro bearings and silicone seals for the most durable and smoothest bottom brackets available. Fully serviceable. Direct replacement for Shimano HollowTech II bottom brackets. Includes: (2) - Enduro Silicone dust seals (1) - 2.5mm...

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...