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Bottom Brackets

BB90 is the Trek oversized bottom bracket standard and is only found on Trek road bikes. The shell is 90.5mm wide and is designed to work with 24mm spindles and road cranks and have the bearings inside the shell. The CeramicSpeed Bearings come as two bearings, which are then pressed into the frame. Those two bearings consist of either CeramicSpeed Standard or Coated Bearings. Both feature super smooth, super-round CeramicSpeed Balls contained in hardened-steel races. The Coated version has a metallic coating laid onto the races, making it even smoother and harder, resulting in lower drag and longer life. -BB90 is simple and light. The standard is designed to work with 24mm spindles. The bearings work with Shimano and other 24mm cranks, like FSA. - The CeramicSpeed Standard Bearings last at least 3 times longer than other bearings. That's thanks to hardened-steel races and CeramicSpeed Balls that are 100% smoother & 15% harder than the ceramic competition. These bearings have a frictional drag of 0.3-0.4 watts per set, which represents an average 75% drag reduction compared to stock BBs. - The CeramicSpeed Coated Bearings reduce drag by 50% compared to Standard Bearings and an improvement in bearing life of 60%. In The Box: - 2 BB90 bearings - 2 seals - 2 dust covers with integrated spacers - 10ml syringe of All Round Grease - Sticker Sheet
$6.19
- With plastic washers - Shell: 8mm Allen head axle bolt
$7.19
- Fits 3-piece crank set - Includes right and left cup, lockring and bearings - English type - Shell: 68/73mm - Cup Material: Steel - Weight: 123 grams
$8.99 $11.99 25% Off
Race Face Cinch bottom bracket spacer kit for BB30/PF30 bottom brackets.
$9.74 $12.99 25% Off
BB-UN26 cartridge bottom bracket. - Smooth rotation - Square taper spindle - Sealed cartridge bearing assembly
$9.79
- Thread: BC 1.37 x 24T - Caged bearing 1/4" x 9 - Fits most square taper cotterless BB axles - Spindle Type: SQR JIS - Cup Material: Steel
$9.99
Dimension American bottom bracket for one-piece cranks. - Include cups, bearings and cones - 24 tpi
$10.49 - $20.99 $20.99 Up to 50% Off
Shimano BB-ES300 Octalink V2 Bottom Brackets - Fits Shimano Octalink V2 Spline Cranksets - Crankarm fixing bolts not included
$12.39
- Fits 3-piece crank set - Includes right and left cup, lockring and bearings - English type - Shell: 68/73mm - Cup Material: Steel - Weight: 123 grams
$13.39 - $23.79
- One-piece bottom bracket cup set - Bearings included - Shell: 68mm - Spindle Type: OPC - Cup Material: Steel - Weight: 265 grams
$15.99 - $16.79
- 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
$15.99
- 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
$15.99
- 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
$15.99
- 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
$15.99
- 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
$15.99
- 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
$18.99
Race Face bottom bracket spacer kit for 124-130mm bottom brackets.
$18.99 - $20.99
Shimano BB-ES300 Octalink V2 Bottom Brackets - Fits Shimano Octalink V2 Spline Cranksets - Crankarm fixing bolts not included
$19.00
FSA PowerPro JIS Cartridge Bottom Brackets. - Includes bolts - Spindle Interface Type: Square Taper JIS - BB Shell Width (mm): 68 - BB/Frame Interface: English
$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
- Tiagra-level Hollowtech II bottom bracket - Compatible with all road Hollowtech II cranks
$19.99
- One-piece bottom bracket cup set - Bearings included - Fits smaller american juvenile/youth sized BB - Shell: 65mm - Cup Material: Steel - Weight: 173 grams
$21.00
Chris King's Bottom Bracket Conversion Kits make sure that you can match up your frame with your cranks, all while enjoying the super smooth performance of King's in-house stainless steel bearings. These adapters are compatible with frames that feature a Press Fit 30 bottom bracket.
$21.99
- Steel body - Steel cups - Chromoly spindle - Sealed bearings - Interface: English - Square Taper JIS - Weight: 305-320 grams
$22.99
The Revolver bottom bracket features two sealed bearings and 6061 Alloy CNC machined cone spacers with weight-saving tear-drop slots. - Precision sealed bearings - Swaged waist tube spacer for 73mm BB shells - Spindle size: 19mm or 22mm - Shell Size: Mid - Tube Spacer: Swaged waist with 5mm spacer - Spacers: 2.5mm alloy (x4) - Weight: 4.0-ounce
$23.99
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
$24.99
TruVativ Power Spline Bottom Bracket fits proprietary powerspline design popular as OE spec with many moderate-price TruVativ cranks. • Proprietary spline design popular as OE spec with many moderate-price TruVativ cranks • Crank bolts are included
$25.49
- Designed for fat tire bikes - Chromoly spindle - Sealed bearings
$25.60 $32.00 20% Off
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
$27.95
- 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
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