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Bottom Brackets

$339.00 - $439.00
The BB30 bottom bracket allows you to pair 30mm spindle cranks to 42mm inner diameter bottom bracket shells. Cannondale pioneered this standard along with specially-designed cranks and many have found the benefits to them. Road versions have a 68mm width, MTB has 73mm. These are also the bearings you can use to replace bearings in PF30 cups.
You have two bearing choices. The first choice is our low drag, long life Standard Bearing, with hardened-steel races and our super-round CeramicSpeed balls. The second choice is our Coated Bearing, which uses those same balls installed on coated, hardened-steel races for longer life and less bearing drag.
BB30 was designed to make the bike lighter: no cups, threading, or redundant metal, plus a lighter, stiffer crank. That's why the crank spindle is 30mm, which was a big jump up from square-taper spindles.
CeramicSpeed standard bearings typically have frictional drag of 0.3-0.4 watts per set. That's in the range of a 75% drag reduction compared to standard bottom brackets. That's thanks to balls that are 100% smoother and 15% harder than the ceramic competition. The bearings last at least three times longer than other bearings.
In The Box
- 2x bearings
- 2x 1mm spacers
- 2x 0.5mm spacers
- 2x dust covers
- O-ring
- 10ml syringe of grease
- Sticker sheet

$123.99
T47 threaded BB cups for T47 frames and 29mm spindle diameter SRAM DUB compatible cranks. Cups have outboard bearings and can be used in BB shells with widths from 68mm to 100mm. Machined aluminum cups thread together directly into a T47 BB shell. Bearings are easily serviced or replaced. Includes sleeve to fit between cups for added protection from dirt and grime, and also keeps your internal wires and hoses from rubbing on the crank spindle.
T47 BB cups are similar to standard BSA threaded cups in that the drive side cup is left-hand thread and the non-drive side cup is right-hand thread. Use a quality grease when installing in steel or aluminum BB shells, and an anti-seize compound compatible with titanium BB shells.
Bottom Bracket Includes:
- BB Cups with bearings
- 2x Silicone dust seals
- 2x 0.5mm crank spindle spacers
- 2x 1.0mm crank spindle spacers
- 1x 2.5mm crank spindle spacer
Specifications:
- Bearings: Enduro ABEC-3
- Bottom Bracket/Frame Interface: T47
- Bottom Bracket Shell Width (mm): 68mm - 100mm
- Bottom Bracket Shell I.D.: 47x1.0mm Threaded
- Crank Spindle Diameter: 29mm
- Over Bearing Width: 90.8mm in 68mm wide shell
- Over Bearing Width Dimensions include supplied silicone dust shields
- Tool Pattern: 48.5mm x 16-notch
- Weight: 155g
Compatible with the following Bottom Bracket Standards (47x1.0mm Threaded BB shell) and 29mm diameter spindle SRAM DUB compatible cranks:
- T47 shell with a width of 68mm and SRAM DUB Road Crank
- T47 shell with a width of 73mm and SRAM DUB MTB Crank
- T47 shell with a width of 100mm and SRAM DUB Fatbike Crank

$53.39
Pedal smoothly and steadily with Origin-8's Torqlite Square-Taper Bottom Bracket. The forged aluminum body and cups are light and tough, the CNC'd hollow-chromoly spindle is stiff and shaves more grams, and the sealed bearings are super smooth and durable.

$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

$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

$84.99
Origin8's BB386 Thread-Together Bottom Bracket provides a secure and stable shell interface for smoother operation and extended bearing life. Its hybrid AL6061/Nylon fiber cups offer a superior fit and noise-free operation. Low-friction dual seals protect the bearings from harmful contaminants, while sealed premium bearings are both serviceable and replaceable.
- Designed for installing Shimano HollowTechII 24mm or SRAM GXP 22/24mm spindle cranks into BB386 frames without the need for adapters
- Shell: 86.5mm x 46mm
- Interface: BB386
- Cup Material: AL6061/Nylon Fiber
- Weight: 135g

$25.00
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

$70.00 - $130.00
Surly OD Bottom Brackets
- Compatible with 24mm spindles
- Moonlander BB fits a 100mm bottom bracket shell, but exterior width conforms to BB121 standard

$59.99
Spinning and Grinning
This rock-solid, durable performer is everything you need in a press-fit 24mm bottom bracket and nothing more. Roll on...and on...and on.
Greased Lightning
This 24mm BB uses quality retainer bearings sealed with waterproof grease and wiper seals for durability and worry-free cranking mile after mile.
Taking A Pass On Plastic
This BB uses lightweight 24mm coated steel cups that are precision CNC-machined for a solid fit and are far superior to molded plastic cups.
Weather, Or Not
All RF bottom brackets come with an inner plastic sleeve to keep the elements out and the appropriate spacers to ensure a perfect fit.

$13.99 - $23.49
BB-UN26 cartridge bottom bracket.
- Smooth rotation
- Square taper spindle
- Sealed cartridge bearing assembly

$54.00
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.
- Compatible with Cannondale Ai frames
- Gutter Seal Technology drastically improves sealing against the elements
- Sealed cartridge bearings
- One oversized spindle to work across every bottom bracket standard

$163.00
The two machined aluminum cups thread together ensuring the bottom bracket remains stable in the frame, increasing bearing life and simplifying maintenance. Enjoy smooth operation, fast bearing replacement, and no more creaking. - Bearings: Enduro Angular Contact (22/24mm SRAM non-drive-side bearing: ABEC-3) - Color: Black - Bottom Bracket/Frame Interface: Cannondale BB30A - Bottom Bracket Shell Width: 73mm - Bottom Bracket Shell I.D.: 42mm - Over Bearing Width: 91mm in 73mm wide shell (dimensions include supplied silicone dust shields) - Tool Pattern: 44mm x 16 notch

$31.19
- Replacement fat bike bottom bracket with square-taper chromoly spindle
- Sealed bearings
- Steel shell and cups
- 120mm shell width
- 180mm spindle length
- 1.37" x 24T English thread

$31.00
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

$359.00
The new SRAM DUB crank standard, built on a 28.99mm spindle, allows for a more contamination-resistant BB design while retaining the ultra-efficient & long-lasting qualities CeramicSpeed Bottom Brackets are known for.
With an integrated dust cover for all models, the snug & secure fit not only fully protects the face of the bearing, but also delivers exceptional performance without any sacrifices. CeramicSpeed hand-built bearings carry the load from crank to frame with unparalleled durability & efficiency.
The SRAM DUB crank spindle requires the bearing contact points to be in a set and designated width, and all CeramicSpeed Bottom Bracket options perfectly match the bearing placement on the crank spindle with the required frame interface for nearly any model of bike. Without the use of unnecessary adapters or spacers, a quiet & stable platform is ensured throughout the life of the product.
You have two bearing choices. The first choice is our low drag, long life Standard Bearing with hardened-steel races and our super-round CeramicSpeed balls. The second choice is our Coated Bearing, which uses those same balls installed on coated, hardened-steel races for longer life and less bearing drag.
Compatible with:
- Frame: BB86
- Opening diameter: 41mm
- Shell width: 86.5mm
In the box:
- 2 CeramicSpeed Bearings
- 2x dust covers
- Plast-sheet
- 4 x 1mm spacers
- 10ml syringe of CeramicSpeed All Round Grease
- Sticker Sheet

$28.99 - $36.99
- Forged steel body
- Alloy cups
- Chromoly spindle
- Sealed bearings
- Interface: English
- Spindle Type: Square Taper JIS
- Weight: 290-300 grams

$35.99
This FSA Bottom Bracket allows you to run MegaExo and other 24mm spindle cranksets with a BB86/BB89.5/BB92 frame.
- Intended for road use
- Steel bearings

$263.00
The SRAM DUB™ bottom bracket series has a simple job—connect your crankarms and protect the smooth, long-lasting application of power to your drivetrain. To allow that singular focus, we've engineered the DUB™ spindle to be the one true unifying component. One oversized spindle to work across every bottom bracket specification. For better crankarm compatibility. For better protection from the elements. For longer-lasting performance. To be stronger, smoother, simpler. Now, back to the ride.
- One oversized spindle to work across every bottom bracket specification.
- Easy installation
- Outboard and inboard cup options to support your bike's spec.
- Sealed cartridge bearings available in both stainless and ceramic versions
SPECIFICATIONS:
- BB-FRAME INTERFACE: T47 (85.5), T47 (Road and Road Wide) 68mm, T47 (Road and Road Wide) 77mm, T47 (Road Wide: 85.5mm), T47 (Road: 85.5mm)
- CHAINLINE: n/a
- SPINDLE LENGTH: n/a
- SUPPORT E-TYPE FD: n/a
- CRANK-BB INTERFACE: DUB
- BEARING TYPE: Ceramic, Standard
- SPINDLE DIAMETER: DUB
- CUP MATERIAL: Aluminum, n/a

$263.00
- Ceramic bottom bracket for DUB spindle cranks
Specs:
- BB Bearing: Ceramic
- Crank Spindle Diameter: 28.99mm
- Interface: DUB

$18.00 - $28.00
FSA PowerPro JIS Cartridge Bottom Brackets.
- Includes bolts
- Spindle Interface Type: Square Taper JIS
- BB Shell Width (mm): 68
- BB/Frame Interface: English

$54.00
The new SRAM DUB bottom bracket series has a simple job—connect your crankarms and protect the smooth, long-lasting application of power to your drivetrain. To allow that singular focus, we've engineered the DUB spindle to be the one true unifying component. One oversized spindle to work across every bottom bracket standard. For better crankarm compatibility. For better protection from the elements. For longer-lasting performance. To be stronger, smoother, simpler. Now, back to the ride.
Features
- One oversized spindle to work across every bottom bracket standard.
- Greater bearing durability
- Easy installation
- Threaded internal cups for an integrated look
- Designed for use with SRAM Wide Cranksets

$59.99
Rock The BB
Precise fit, smooth-rolling operation, long-living performance–what more can you ask for from a bottom bracket? Install a 30mm CINCH crankset friendly PF30 and get riding...and keep riding.
Rolling deep
The PF30 bottom bracket uses reliable 6806 retainer bearings packed with waterproof grease, along with wiper seals to keep the gunk out.
Close Enough Won't Cut It
We fired up the ol' CNC machine to make sure the anodized 30mm alloy cups of this bottom bracket provide an exact, perfectly quiet fit for your frame.
Weather, Or Not
All RF bottom brackets come with an inner plastic sleeve to keep the elements out and the appropriate spacers to ensure a perfect fit.

$13.39 - $23.79
- One-piece bottom bracket cup set
- Bearings included
- Shell: 68mm
- Spindle Type: OPC
- Cup Material: Steel
- Weight: 265 grams

$23.99 - $32.49
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

$63.95
Features three sealed cartridge bearings.
- Fits Daytona, Racing Triple, Centaur, Veloce and Mirage, 1193 and later Athena and pre-1995 Record and Chorus
- 115mm spindle recommended for triple cranks and 32 or 35mm seat tubes
- Unique taper is not compatible with Shimano
- Weight: 233 grams

$149.99
With precision sealed bearings and cold-forged, aluminum CNC machined cups, the Box One™ Titanium Square Taper bottom brackets are the best option for young BMX racers and other users. It is a three-piece crank in search of performance gains and weight savings. They have hollow, custom titanium-nitride-coated titanium spindles and carbon fiber center seals, helping keep the weight down between 185 and 190 grams (well below that of other square taper bottom brackets on the market). Other features include cups that are anodized black with anodized gold inner seals and a JIS tapered spindle that comes in either 108 or 113 millimeters.
Weight Limit: 115kg (253 lbs) with limitations as per Category 2 of EN 16054:2012 Standard
Features:
- Precision Abec-5 Sealed Bearings
- Lightweight Non-Structural Carbon Components
- Extra Rigid Titanium Spindle
Compatibility:
- Box Five Square Taper Crankset
Specs:
Process: CNC-Machined Cups
Material:
- Spindle: Titanium
- Cups: Alloy
- Sleeve: Carbon Fiber
Finish: Titanium Nitride Coated
Spindle Type: JIS Square Taper
Spindle Length: 108mm or 113mm
Shell Width: 68mm
Thread: 1.37" x 24 TPI
Compatibility: BSA Threaded
Weight [108-113] (+/- 5%): 199-204 g / 7-7.2 oz

$74.99 - $89.99
As The Wheel Turns
This trusty 30mm workhorse of a bottom bracket is built with custom RF double row cartridge bearings for trouble-free, long haul rolling for you PF41 frame.
In A Sea Of Bearings
These little buggers can make a huge difference, so we've made sure our double row custom retainer bearings are super durable and up for the long run.
Close Enough Won't Cut It
These precision steel cup are coated for corrosion resistance, and CNC-ground surfaces of this bottom bracket provide an exact, perfectly quiet fit in your frame.
Weather, Or Not
All RF bottom brackets come with an inner plastic sleeve to keep the elements out and include all appropriate spacers to ensure a versatile fit.

$459.00
BSA is equivalent to English threading. English threading on road bikes mean a 68mm-wide, 34mm inside diameter shell with reverse threading on the drive side. It's the most common threaded standard employed today. This kit works with 24mm diameter cranks, such as Shimano, FSA, Rotor, and others.
Choose between two bearings for the cups. Standard Bearings have low drag thanks to hardened-steel races and our Ceramic balls. Coated Bearings have those same balls installed on coated, hardened-steel races for longer life and less bearing drag.
English threading is easy to work with, and 24mm spindles easily fit through the shell, allowing for large bearings to be employed in the outside cups.
Put more of your energy into forward motion by reducing frictional drag wherever you can. CeramicSpeed Standard Bearings typically have frictional drag of 0.3-0.4 watts per set. That's in the range of a 75% drag reduction compared to standard bottom brackets. CeramicSpeed balls are 100% smoother and 15% harder than ceramic competition. The bearings last at least 3x longer than other bearings.
In The Box:
- 2 threaded cups with bearings
- 2 dust covers with built-in spacers
- Spacer tube
- 10mm syringe of All Round Grease
- Sticker sheet

$459.00
Italian-threaded bottom bracket shells are typically found on Italian-brand road bikes. The shell measures 70mm wide and has a 35mm inner diameter.
This kit has all the pieces necessary to install 24mm diameter cranks, such as those from Shimano, FSA, and others into an ITA shell.
CeramicSpeed bearings are pressed into threaded cups, then those cups are threaded into the frame. You choose whether you want yours equipped with Standard or Coated Bearings. Super-round, super-smooth CeramicSpeed balls rotate in hardened-steel races in both. The Coated version has a metallic coating laid onto the races, making them even harder and smoother, resulting in longer life and lower drag.
ITA BBs, thanks to the popularity of Italian road bike design, still have a following. The drive-side cup needs to be properly secured, but once that's done, the system is excellent. 24mm cranks work better when mated to our bearings.
To make your bike as efficient as possible, you must reduce mechanical drag. Bottom brackets have a measurable effect on speed. CeramicSpeed balls are 100% smoother and 15% harder than the ceramic competition. They run on smoother races, too. That means our Standard Bearing BBs have 75% less drag compared to typical bottom brackets. And, the bearings last at least 3x longer than other bearings.
These bearings come packed with All Round Grease. If you want less drag and are riding in cleaner environs, install lowest drag TT and Track Grease. If you're riding in wet conditions, more durable LongLife Grease can be put in.
In The Box:
- 2 threaded cups with bearings
- 2 dust covers with built-in spacers
- Spacer tube
- 10ml syringe of All Round grease
- Sticker sheet

$359.00
BSA is another way of stating English threading. The initialization comes from Birmingham Small Arms, which made bicycles. English threading on road bikes mean a 68mm-wide, 34mm-inside-diameter shell with reverse threading on the drive side. It's the most common threaded standard employed today. This kit allows you to fit 30mm cranks, like those from Rotor, to fit in the tight space of this 34mm spindle.
Choose between two bearings types for the cups. Standard Bearings have low drag thanks to hardened-steel races and our CeramicSpeed Balls. Coated Bearings have those same balls installed on coated, hardened-steel races for longer life and less bearing drag.
Note that the threaded extensions of this BB's cups that thread into the frame are thin, as they need to fit a 30mm spindle inside the cups.
CeramicSpeed standard bearings typically have frictional drag of 0.3-0.4 watts per set. That's in the range of a 75% drag reduction compared to standard bottom brackets. That's thanks to balls that are 100% smoother and 15% harder than the ceramic competition. The bearings last at least 3x longer than other bearings.
In The Box:
- 2 threaded cups with bearings installed
- 2 1mm spacers
- 2 0.5mm spacers
- 2 dust covers
- O-ring
- 10ml syringe All Round Grease
- Sticker sheet
- Spacertube