Bottom Brackets

Dimension American bottom bracket for one-piece cranks. - Include cups, bearings and cones - 24 tpi

The Dynatron features an American BB with press fit cups and caged bearings. - Compatible with 1-piece cranks - Frame BB Shell is 68mm width by 51.5mm inner diameter - BB Style: American

GXP conversion kit for Hope bottom brackets.

- Simple and reliable square taper bottom bracket - Replaces both BB-UN26 and BB-UN55 - Sealed cartridge bearings - Cr-Mo axle - For bicycles equipped with a chain case, select BB-UN300-K - For E-type front derailleur compatibility, choose BB-UN300-E - Fixing bolts not included; Shimano FC-E6000 bolts suggested

- Simple and reliable square taper bottom bracket - Replaces both BB-UN26 and BB-UN55 - Sealed cartridge bearings - Cr-Mo axle - For bicycles equipped with a chain case, select BB-UN300-K - For E-type front derailleur compatibility, choose BB-UN300-E - Fixing bolts not included; Shimano FC-E6000 bolts suggested

- Simple and reliable square taper bottom bracket - Replaces both BB-UN26 and BB-UN55 - Sealed cartridge bearings - Cr-Mo axle - For bicycles equipped with a chain case, select BB-UN300-K - For E-type front derailleur compatibility, choose BB-UN300-E - Fixing bolts not included; Shimano FC-E6000 bolts suggested

- Simple and reliable square taper bottom bracket - Replaces both BB-UN26 and BB-UN55 - Sealed cartridge bearings - Cr-Mo axle - For bicycles equipped with a chain case, select BB-UN300-K - For E-type front derailleur compatibility, choose BB-UN300-E - Fixing bolts not included; Shimano FC-E6000 bolts suggested

Race Face bottom bracket spacer kit for 124-130mm bottom brackets.

Shimano BB-ES300 Octalink V2 Bottom Brackets - Fits Shimano Octalink V2 Spline Cranksets - Crankarm fixing bolts not included

High performing square bottom bracket interfaces with English frames. - Fits square-taper spindle cranksets - Alloy adjustable cups - Includes 2 axle bolts

- Deore-level BB92 press-fit Hollowtech II bottom bracket - Compatible with all mountain Hollowtech II cranks

- Steel body - Steel cups - Chromoly spindle - Sealed bearings - Interface: English - Square Taper JIS - Weight: 305-320 grams

- Tiagra-level Hollowtech II bottom bracket - Compatible with all road Hollowtech II cranks

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

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.

FSA PowerPro JIS Cartridge Bottom Brackets. - Includes bolts - Spindle Interface Type: Square Taper JIS - BB Shell Width (mm): 68 - BB/Frame Interface: English

Campagnolo's Record Bottom Bracket Cups are perfect for your Campy Ultra-Torque crankset (sold separately). They are constructed from anodized aluminum for light weight and excellent durability. They are available in English and Italian thread. • Italian: 70mm • English: 68mm

Running a conventional threaded bottom bracket on your BB30 or PF30 frame doesn't have to be complicated. This press-fit adapter from FSA goes in snug and opens up a lot of crankset possibilities for your BB30/PF30 frame. - Aluminum - Allows conventional threaded bottom brackets to be installed in a BB30 or PF30 frame - Install with headset press (not included) and green Loctite (included)

The FSA Alloy Cup JIS bottom bracket is suitable for Italian threaded interfaces. - Alloy cups - Double "snap" seals for water and dirt protection - Spindle Interface Type: Square Taper JIS

FSA (Full Speed Ahead) MegaExo 19 bottom brackets are for use with 19mm diameter spindles. - Die cast and CNC-machined alloy bearing cups - 19mm I.D. - BB86/92 compatible - BB Shell Width (mm): 92 - Bottom Bracket Shell I.D.: 41

A tough bottom bracket that will go as hard as you. The PowerSpline has a heat-treated chromoly 12 spline spindle to make sure it can go the distance with even the most demanding riders. SPECIFICATIONS: - BB-FRAME INTERFACE: English/BSA 68E/73mm, English/BSA 68mm, English/BSA 73mm - CHAINLINE: 46.0mm, 48.5mm, 51.0mm, n/a - SPINDLE LENGTH: 108mm Spindle, 113mm Spindle, 118mm Spindle - SUPPORT E-TYPE FD: n/a, Yes - CRANK-BB INTERFACE: Power Spline - BEARING TYPE: n/a - SPINDLE DIAMETER: n/a - CUP MATERIAL: n/a - WEIGHT (G): 363 - WEIGHT BASED ON: BSA 73mm, 113mm spindle

Campagnolo ProTech bottom brackets feature a patented external sealing ring design that protects a strong, resilient fiberglass-charged polyamide central tube from the harmful ingress of water, mud and grit. - Designed specifically for gravel riding and racing to protect against water, mud & grit

This FSA MegaExo bottom bracket is for use MTB MegaExo cranksets with 24mm spindles. - Sealed bearings - Die-cast then CNC machined alloy bearing cups - Composite Di2-compatible adjustable center sleeve

Designed to work flawlessly with your Patterson crank, this Metropolis bottom bracket delivers smooth performance and light weight.

- Allow the use of a 24mm spindle with Shimano press fit shells - Bearings races are fully coated for improved corrosion resistance - Bearings are factory filled with Phil Wood grease

Pressfit Model: • For use on BB86/92 bottom bracket shells • Compatible with 24mm spindle Hollowtech II cranksets • BB Shell Width (mm): 92 mm • BB/Frame Interface: BB86 , BB92 • Bottom Bracket Shell I.D.: 41 • Defined Color: Black • Spindle Interface Type: Shimano Hollowtech II Threaded Model: • Includes 3 x 2.5mm spacers • Includes TL-FC24 adapter tool • Reduced size for light weight • New seal construction for smoother rotation • Requires TL-FC34 or included TL-FC24 adaptor for installation & removal • BB Shell Width (mm): 68 mm • BB/Frame Interface: English • Defined Color: Black • Spindle Interface Type: Shimano Hollowtech II • Weight: 77 g

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

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.

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. This GXP100 bottom bracket matches SRAM's Fat Bike cranks.

- For 19mm crank spindles and threaded Euro bottom bracket frames. - High-quality four bearing design with aluminum cups.