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Bottom Brackets

Shimano UN55 Square Taper English Threaded Bottom Bracket
$23.99 - $29.99
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
FSA BB90-MegaExo Adapter Bottom Bracket
$38.99 - $164.99
- Enables the use of a MegaExo (24mm spindle) crankset on a BB90 (Trek Madone) frame - Choose MegaExo carbon (ceramic bearings with red-anodized aluminum shields) or alloy (stainless steel bearings with black plastic shields)
Shimano Ultegra Bottom Bracket
$23.99 - $29.99
Shimano's Ultegra bottom bracket uses Pro Tour-proven technology for lighter weight and super smooth spinning, while still maintaining the same level of durability and stiffness. It's available in English, Italian, or Press Fit models.
Shimano BB-UN26 Cartridge Bottom Bracket
$19.99
BB-UN26 cartridge bottom bracket. - Smooth rotation - Square taper spindle - Sealed cartridge bearing assembly
Shimano BB-ES300 Octalink Bottom Bracket
$19.99
Shimano BB-ES300 Octalink V2 Bottom Brackets - Fits Shimano Octalink V2 Spline Cranksets - Crankarm fixing bolts not included
SRAM GXP Team Bottom Bracket
$38.00 - $39.99
Get the most out of SRAM's high-tech cranksets with the GXP Team Bottom Bracket. Built to last, this super-smooth bottom bracket lets your SRAM GXP crankset (sold separately) spin effortlessly without weighing you down.
Odyssey Mid Bottom Bracket
$19.99 - $24.99
- Made to fit crank spindles and press-fit Mid BB frames. - Simple and easy to install. - Includes an assortment of spacers to optimize chainline and crank clearance. - Odyssey 6061-T6 aluminum dust spacer included.
SRAM GXP Team PressFit MTB Bottom Bracket Cups
$44.99 - $46.00
SRAM's GXP Team PressFit MTB Bottom Bracket Cups are the premium choice for getting the most out of every pedal stroke. They feature smooth bearings that keep drag to a minimum and seals that keep debris out. Plus, these BB cups press directly into the frame without having to be threaded in for reduced weight and enhanced durability.
SRAM DUB Non-Threaded Bottom Bracket
$39.99 - $54.99
The SRAM DUB bottom bracket series has a simple job— to connect crankarms and protect the smooth, long-lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility. - Gutter Seal Technology drastically improves sealing against the elements - Sealed cartridge bearings - One oversized spindle to work across every bottom bracket standard - Significantly lighter than GXP system
Chris King ThreadFit 24 Steel
$154.99
Our ThreadFit 24 bottom bracket is designed and built to be durable, serviceable, and silent. Manufactured to create a precise and functional interface between your frame’s bottom bracket shell and your cranks to ensure that your cranks will spin lightly and without interference. We have developed a range of conversion kits that allow our ThreadFit 24 to be used with a wide selection of road and mountain bike cranks. - Engineered, manufactured and assembled in Portland, Oregon USA - 5-year built-to-last warranty - Legendary made-in-house bearings - Responsibly lightweight - Easily serviceable with our integrated grease injection system - Find your fit with our required conversion kits - Ceramic bearing upgrade available
Chris King ThreadFit 24 Conversion Kit #12
$21.00
All of Chris King's bottom bracket offerings will need an appropriate Conversion Kit specific to the brand and model of crankset to be used. - 73mm Threaded BB Shell - 24mm Mountain Cranksets - Common Cranks: Shimano mountain, FSA mountain, FSA SLK Light, Gravity, Race Face mountain, Rotor, Surly - Conversion Kit required to work with the Chris King ThreadFit 24 bottom bracket
SRAM DUB Threaded Bottom Bracket
$38.00 - $39.99
The SRAM DUB bottom bracket series has a simple job— to connect crankarms and protect the smooth, long-lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility. - Gutter Seal Technology drastically improves sealing against the elements - Sealed cartridge bearings - One oversized spindle to work across every bottom bracket standard - Significantly lighter than GXP system
Chris King ThreadFit 24 Conversion Kit #10
$21.00
All of Chris King's bottom bracket offerings will need an appropriate Conversion Kit specific to the brand and model of crankset to be used. - 68mm Threaded BB Shell - 24mm Mountain Cranksets - Common Cranks: Shimano mountain, FSA mountain, FSA SLK Light, Gravity, Race Face mountain, Rotor, Surly - Conversion Kit required to work with the Chris King ThreadFit 24 bottom bracket
SRAM BB30 Bottom Bracket Assembly
$38.00
Get more distance out of every pedal stroke with SRAM's BB30 Bottom Bracket Assembly. It features sealed bearings for a smooth pedal stroke and impressive reliability. Plus, it presses directly into your frame's BB30 bottom bracket shell for reduced weight and increased longevity.
Wheels Manufacturing Inc. PF30 Outboard ABEC-3 Bottom Bracket for 30mm Cranks
$99.99
By popular demand, Wheels Mfg. added this PF30 Outboard Bearing BB for use with 30mm spindle cranksets when used in PF30 frames. The two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life and simplifying maintenance. Enjoy smooth operation, fast bearing replacement, and no more creaking. Note: Spindle length must be 103mm or longer when used in a 68mm wide shell; 108mm or longer when used in a 73mm wide shell. - Bearings: ABEC-3 - Color: Black - Bottom Bracket/Frame Interface: PF30, Specialized Carbon OSBB - Bottom Bracket Shell Width: 61mm – 83mm (Specialized Carbon OSBB with 61mm shell width will need additional 3.5mm cup spacers, sold separately) - Bottom Bracket Shell I.D.: 46mm - Over Bearing Width: 89mm in 68mm wide shell (dimensions include supplied silicone dust shields) - Crank Spindle Diameter: 30mm - Tool Pattern: 48.5mm x 16 notch - Weight: 151g
Wheels Manufacturing Inc. Threaded To 30mm ABEC-3 Bottom Bracket
$64.00
Wheels Mfg solution for running a 30mm spindle crankset in a BSA threaded frame. Machined aluminum cups thread in to a standard threaded frame and feature Enduro 6806 ABEC-3 sealed bearings outboard of the BB shell. Fully serviceable. Notes: - For use with BB30 Wide 30mm diameter cranks with a spindle length of at least 104mm. - Will not work with standard BB30 cranksets. PLEASE MEASURE YOUR BB30 CRANK SPINDLE LENGTH! - Use only bottom bracket tools compatible with 16-notch MegoEvo BB’s. (FSA MegaEvo and Park Tool BBT-29). - Bearings: Enduro ABEC-3 - Color: Black - Bottom Bracket/Frame Interface: ISO/English or BSA Threaded (1.37 in x 24 TPI) - Bottom Bracket Shell Width (mm): 68mm - Bottom Bracket Shell I.D.: 33.6-33.9 mm - Crank Spindle Type: BB30 Wide, BB30a, 386EVO, Rotor 3D+, SRAM BB30 Wide - Crank Spindle Diameter: 30mm - Crank Spindle Length: At least 104mm - Weight: 102g
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