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Bottom Brackets
Chris King Threadfit Bottom Bracket Conversions to mate your King ThreadFit BB to your chosen frame and crank spindle.
- For use with ThreadFit 30
- 68mm, 73mm BB shells
$5.00
ABI Standard Design Cartridge Bearings.
- 90% filled with Mobilux NGLI 2 synthetic grease, dual-lip labyrinth seals
- If the bearing you are replacing is not marked with a manufacturer number, measure it and compare to specifications listed
Specifications:
- Thickness: 8
- Material: Steel
- Bearing O.D. (mm): 26
- Manufacturer Number: 6000
- Bearing I.D. (mm): 10
$9.99
Dimension American bottom bracket for one-piece cranks.
- Include cups, bearings and cones
- 24 tpi
$13.99
Shimano BB-UN300 Square Spindle Bottom Brackets
- Fits JIS square-taper cranksets
- Crankarm fixing bolts sold separately
- Hollow spindle
SPECIFICATIONS
- Spindle Interface Type: Square Taper JIS
- BB Shell Width (mm): 68
- Bottom Bracket Shell I.D.: 1.37
- Spindle Length: 110mm
- BB/Frame Interface: English
- Defined Color: Black
$14.00
Shimano BB-UN300 Square Spindle Bottom Brackets
- Fits JIS square-taper cranksets
- Crankarm fixing bolts sold separately
- Hollow spindle
SPECIFICATIONS
- Spindle Interface Type: Square Taper JIS
- BB Shell Width (mm): 73
- Bottom Bracket Shell I.D.: 1.37
- Spindle Length: 122.5
- BB/Frame Interface: English
- Defined Color: Black
$15.99
Shimano BB-UN300 Square Spindle Bottom Brackets
- Fits JIS square-taper cranksets
- Crankarm fixing bolts sold separately
- Hollow spindle
SPECIFICATIONS
- Spindle Interface Type: Square Taper JIS
- BB Shell Width (mm): 68
- Bottom Bracket Shell I.D.: 1.37
- Spindle Length: 113
- BB/Frame Interface: English
$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
$17.95
- Adapts ISCG-05 mount chainguide arms to fit flange or lockring style bottom brackets
$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
$19.99
High performing square bottom bracket interfaces with English frames.
- Fits square-taper spindle cranksets
- Alloy adjustable cups
- Includes 2 axle bolts
$19.99
- Deore-level BB92 press-fit Hollowtech II bottom bracket
- Compatible with all mountain Hollowtech II cranks
$21.90
- 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
$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
$23.00
- 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
$24.00
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 to 22mm Stepped Mountain Cranksets
- Common Cranks: SRAM mountain, Bontrager mountain, TruVativ mountain, Zinn mountain
- Conversion Kit required to work with the Chris King ThreadFit 24 bottom bracket
$25.49
- Designed for fat tire bikes
- Chromoly spindle
- Sealed bearings
$26.00
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
$27.00 - $33.00
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
$27.95
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
$28.00
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)
$28.00
- 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
$28.70 - $41.00
$41.00
Up to 30% Off
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
$28.70 - $41.00
$41.00
Up to 30% Off
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.
$29.00
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
$29.00
FSA PowerPro JIS Cartridge Bottom Brackets.
- Includes bolts
- Spindle Interface Type: Square Taper JIS
- BB Shell Width (mm): 68
- BB/Frame Interface: English
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