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Bottom Brackets

$9.99
Dimension American bottom bracket for one-piece cranks. - Include cups, bearings and cones - 24 tpi
$15.99 - $19.00
- 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
$17.95
- Adapts ISCG-05 mount chainguide arms to fit flange or lockring style bottom brackets
$18.00
- 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
$18.00
Shimano BB-UN300 Square Spindle Bottom Brackets
  • Fits JIS square-taper cranksets
  • Crankarm fixing bolts sold separately
  • Hollow spindle
$18.00
- 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
$18.00
Shimano BB-UN300 Square Spindle Bottom Brackets
  • Fits JIS square-taper cranksets
  • Crankarm fixing bolts sold separately
  • Hollow spindle
$18.00
- 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
$19.00
- 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
$19.99
  • BSA thread
  • JIS-square
  • Boron axle
  • Steel cups
$19.99
High performing square bottom bracket interfaces with English frames. - Fits square-taper spindle cranksets - Alloy adjustable cups - Includes 2 axle bolts
$19.99
  • BB Shell width 70mm
  • ITA thread
  • JIS-square
  • Massive axle
  • Black
  • Steel cups
  • 334 g
$19.99
  • JIS Square interface
  • Made of steel
  • Steel axle
  • For 68mm shell
  • British thread
  • Nylon cups
  • Sealed bearing
$22.00 - $34.00
FSA PowerPro JIS Cartridge Bottom Brackets. - Includes bolts - Spindle Interface Type: Square Taper JIS - BB Shell Width (mm): 68 - BB/Frame Interface: English
$22.00
- Deore-level BB92 press-fit Hollowtech II bottom bracket - Compatible with all mountain Hollowtech II cranks
$22.00
Shimano BB-RS500 Hollowtech II Bottom Brackets
  • Fits Shimano Hollowtech II Cranksets
$23.00
Shimano BB-ES300 Octalink V2 Bottom Brackets - Fits Shimano Octalink V2 Spline Cranksets - Crankarm fixing bolts not included
$24.99
- High quality alloy cups compatible with IRD QB55 bottom brackets (sold separately) - Choose Swiss, French, or Italian bottom bracket thread dimensions - Left cup: right hand thread - Right cup: left hand thread
$24.99
  • For SRAM 24/22mm
  • Sealed bearing
  • Made of aluminum
  • CNC-machined
  • With spacers
$26.00 - $29.00
The Shimano BB-RS501 bottom bracket features an enhanced seal construction to provide long-lasting performance and service life.

  • Designed for a perfect fit with Hollowtech II 24mm crank spindles
  • Anodized aluminum cups are high strength and light weight
  • $27.00
    - Adapters press directly into specific PF30, BB30, BB86 or BBright frames and allow the use of standard Ultra-Torque (UT) crank sets and EPS components - Updated design increases surface area contact with the frame's bottom bracket, reducing the possibility of noise from frames with slight imperfections - Ultra-Torque OS Fit BB-cup tool is required for adapter installation
    $31.00
    Shimano Saint BB71, BB80B, BB80D Hollowtech II Bottom Brackets
    • Includes 3 x 2.5mm spacers
    $31.95
    e*thirteen Press Fit Bottom Brackets

    - Adapts all e-thirteen and older Fifteen.G cranks to BB89.5 BB92 frames
    - Custom angular contact bearings TiNi models feature Ti Nitride races
    - EV-8015 includes chainline spacer kit for LG1 and non-APS cranks
    - e*thirteen's BB92 bottom bracket uses industry-exclusive dual-row bearings to fit big performance into a small BB shell
    - A center tube helps seal the BB shell
    - For 41mm ID pressfit frames
    - Bearings feature high-performance seals, and a custom grease specification delivers supreme durability and smooth spinning performance
    $31.99 - $35.00
    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.
    $32.00
    Replacement bottom bracket for FSA's Power Drive splined cranksets. The stiff forged hollow chromoly spindle is supported by a pair of sealed industrial cartridge bearings. Additional weather protection comes from double “Snap” seals.
    • Forged hollow SCM4130 chromo spindle
    • Industrial 6002KRS cartridge sealed bearings with oversized 3/16” diameter balls
    • Cold forged aluminium cups
    • Double “snap” seals for water and dirt protection
    $33.00
    Don’t throw out your bearing cups - rebuild them to a better spec! - Includes two bearings and seals - Grade 10 steel balls rated at ABEC 3 precision - Packed with High Pressure Marine Grease - Races are treated with a black oxide coating, which helps to prevent prevent rust and corrosion - Enduro BB bearings do not use axle shims which allows for a reduced bearing ID and the use of larger balls - Made with x14, 5/32" balls (instead of x16, 1/8" balls) - This kit requires tool # 360-2100 to remove and install bearings in the cups
    $33.00
    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)
    $33.99 - $41.00
    • Lightweight seal structure removes grams • Durable anodized finish • Includes left and right hand cups, spacers, inner cover, and inner o-rings • Easy installation with TL-FC25 tool • Compatible with 24mm crank spindles • English, threaded: 68/73mm bottom bracket • Pressfit: BB86/92 bottom brackets
    $34.99
    Race Face bottom bracket spacer kit for 124-130mm bottom brackets.
    $35.00
    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
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