Our modern world of bottom brackets is something of a labyrinth; if you can decipher the clues to find your way to the one that works for you, we commend you. But if a few shadowy paths still leave you uncertain or confused, let us try to illuminate one of them for you. The Dura-Ace BB-R9100...

Among the many bottom bracket standards in the bike industry is BB86. Where a typical road bike has a 68 or 70mm bottom bracket shell width, a BB86 equipped bike has a shell that measures 86. 5mm wide. This gives frame designers a little more room to get creative with frame design and improve...

The bottom bracket is a component that usually does its job without making a fuss, and Shimano knows how indispensable it is to our drivetrain, which is why they ensure smooth bearings, advanced sealing, and high manufacturing tolerances. With the Ultegra SM-BB72-41B PressFit Bottom Bracket, we...

Shimano's sleek redesign for the Ultegra SM-BBR60 Bottom Bracket is lighter and faster than before, making it the ideal choice for either your English- or Italian-threaded frame. The new SM-BBR60 is close to 15 grams lighter than its predecessor, and the new design has reduced rotational friction...

Simple, reliable, and smooth, Shimano's XTR BB94 Bottom Bracket presses easily into your frame to give you long-lasting and nearly friction-free pedaling. The stainless steel bearings, composite body, and composite cups are designed to work with Shimano HollowTech II cranks, and the threadless...

The SRAM BB30 Bottom Bracket Assembly allows you to use a SRAM drivetrain with frame designs that feature the light and stiff performance of this oversized standard. The kit includes two sets of steel bearings and mounting hardware for SRAM cranks and bikes with a BB30 bottom bracket shell.

The SRAM BB30 Crankset Spacer is a 2. 5mm spacer that goes on 30mm crank spindles, on each side of the bottom bracket, between the crank arm and the bottom bracket bearing shield. The spacers take up the 5mm nominal difference between 73 and 68mm shells on PF30 and BB30 frames for proper...

The SRAM BB30 Drive Side Spindle Spacer is designed to help you dial in the proper chainline if you happen to be switching frames, cranks, or bottom brackets. This particular version is 13mm thick and is used to take up the unused space on wider spanning 30mm cranks spindles used on narrow, 68mm...

Not everyone likes the BB30 standard. But they want to buy a frame that has a BB30 bottom bracket shell. No need to despair, get the frame and then purchase SRAM's BB30 to BSA Bottom Bracket Adapter Kit. Once it is pressed into the BB30 shell, your bottom bracket will function like any other...

SRAM's Crank Bearing Preload Adjuster For BB30/PF30 is used to adjust bottom bracket bearing preload on SRAM and Truvativ cranks in BB30 and Press Fit 30 shells. The adjuster threads onto the non-driveside crankarm and as you back it away from the arm, it closes the gap between the arm and...