Cycling > Bottom Brackets

Profile Racing bottom bracket HOP-UP kit,   includes cups, bearings, cone spacers and flush crank bolts For 3/4" (19mm) spindles

Shimano part # Y1E598210for use with outboard-bearing bottom brackets.

The Shimano Dura-Ace BB-7900 Bottom Bracket is simple and straightforward. It includes two cups with low-drag, high-precision Dura-Ace bearings, plus a cylindrical dust cover that mates the two cups. Shimano designed new bearing seals that reduce drag—to create smoother rotation and add durability.

Dura-Ace was designed to give road racing cyclists a performance advantage by reducing bicycle-induced stresses during competition. Choose the 109.5mm (BB-7700) for double cranksets, 118.5mm (BB-7703) for a triple crank setup. Multi-Bearing Construction: uses both ball and needle bearings to reduce flex for greater power transmission efficiency. Material: Hollow chromoly...

Shimano Hollowtech bottom bracket cup with bearings.

The Shimano BB-6700 Hollowtech II design increases bottom bracket stiffness and stability by utilizing a wider bearing stance. Access to bearings is easy, meaning you’ll be able to keep your bottom bracket feeling like butter for years to come. At only 95 grams total for both cups, the BB-6700 might...

Shimano Ultegra FC6601/6604 Italian or English bottom bracket. BB Shell Width: 68, 70 mm BB Thread Type: English, Italian Spindle Interface Type: Hollowtech II

Sinz Pro Ti Euro BMX Bottom Brackets Titanium spindle with 3 low friction precision bearings Carbon fiber shell with alloy cups Available in 68 X 108, 113 & 118mm lengths Sinz lightest square taper bottom bracketQ71 grams

SRAM BB30 Ceramic Bearing Assembly Ceramic bearings offer longer wear life, lower resistance and are lighter in weight than traditional steel ball bearings. Ceramic bearings Only fits BB30 frames and SRAM or Truvativ BB30 cranks

The SRAM GXP BlackBox Bottom Bracket features ceramic bearings, which are not only 10% lighter than standard bearings, they require 78% less energy than the next most-efficient bottom bracket. Because they’re harder and rounder than steel, they let the crank-arm spindle rotate with less drag, which means more of your...

The SRAM GXP Bottom Bracket accommodates frame and threading irregularities to provide constant, smooth pedaling performance. The unique design eliminates radial stress by tensioning the non-drive-side bearing and letting the drive-side bearing float, reducing wear and facilitating adjustment.

Sugino 14mm nut only for Maxy type spindles.

Do superlatives like fastest, lightest, and stiffest make you drool like a baby anticipating a nipple? We thought so, and recommend that you take a look at the Zipp Speed Weaponry Vuma Quad Bottom Bracket. Available in precision steel or ceramic, this Zipp Bottom Bracket is only compatible with Zipp...