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Bottom Brackets

$69.99
Compared to the power transfer of the conventional square taper spindle, the 8-splined OCTALINK interface that connects the bottom bracket and crankset increases the strength and rigidity for the entire assembly.

$23.49 - $34.99
Shimano's BB-UN55 Square Spindle Bottom Brackets are the unofficial standard for English-threaded cartridge bottom brackets. Quality, value, and durability come together to keep you cranking for many, many miles.
- Fits JIS Square-Taper Cranksets
- Hollow spindle
- Crankarm fixing bolts not included

$49.99 - $59.99
Striking the balance between light weight, long life and durability, TruVativ's Giga Pipe Team SL Bottom Bracket uses 3 sealed cartridge bearings to provide smooth pedaling season after season. For serious strength, the Giga Pipe boasts CNC-machined aluminum cups and a stiff chromoly spindle, too.

$12.99 - $22.99
BB-UN26 cartridge bottom bracket.
- Smooth rotation
- Square taper spindle
- Sealed cartridge bearing assembly

$39.99 - $54.99
Shimano BB-ES51 Octalink V2 Bottom Brackets
- Fits Shimano Octalink V2 Spline Cranksets
- Crankarm fixing bolts not included

$16.99
- Bottom bracket for one-piece crank
- Sealed mechanism
- 24 TPI
- Spindle Type: One piece
- Cup Material: Steel
- Weight: 310-315g
- Cup Type: Press Fit
- Cup OD/Bearing OD: 51mm

$8.79 - $19.39
- One-piece bottom bracket cup set
- Bearings included
- Shell: 68mm
- Spindle Type: OPC
- Cup Material: Steel
- Weight: 265 grams

$45.99
Shimano's Ultegra Bottom Bracket Cups are perfect for Shimano's Ultegra Crankset. They feature light and durable aluminum cups with installed super-smooth sealed bearings and a center plastic sleeve for even more protection from water and dirt. The Ultegra Bottom Bracket is available in English and Italian threading.
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