Bottom Brackets

The Shimano Dura-Ace R9100 Bottom Bracket features smaller lightweight bearings and an advanced seal construction for smoother rotation and increased durability. It is designed to work in combination with the Dura-Ace R9100 crankset to offer optimum stiffness and a smoother pedal stroke. Features BB Shell Width: 68mm threaded BSA Small...

Shimano XTR M93 Bottom Bracket set is strong and smooth. This English-threaded BB is incredibly light, sealed for mucky conditions, and spins freely for top performance.  Key Features Set includes left and right hand cups, spacers, inner cover, and inner O-rings 68mm or 73mm compatible Durable black anodised finish Maintenance...

Welcome our new Gutter Seal Technology! Gutter drastically improves sealing against the elements while reducing seal drag. We’ve designed a fresh new cup forging for a new high-end look. A new standard in external bearing performance! Gutter Seal Technology Improved tool engagement Sealed cartridge bearings English or Italian threads GXP...