Bottom Brackets

NIB/NOS Shimano Dura Ace BB-7800 Hollowtech 2 External Bottom Bracket: English (RARE! Somehow)

Inexplicably, the supply of bottom brackets from the 7800 group has completely dried up! There is ONE currently listed on Ebay, a used one. In the past three years, just 5 used ones were sold (separate from cranks) on ebay.  If you're trying to keep...

Shimano Ultegra BB-6500 Bottom Bracket: 109.5mm x 68mm - Octalink V1 (Near Mint)

Great inexpensive bottom bracket to get your Dura Ace, 105, Ultegra, or XTR crankset running.  Sealed multi-Bearing Construction-Bottom bracket uses both ball and needle bearings to reduce flex for greater power transmission efficiency...

Shimano Dura Ace BB-7700 Octalink Bottom Bracket: 109.5mm x 68mm - BSA (Near Mint)

This lightweight bb is fully rebuildable!  It features roller bearings, and can be easily greased just by removing the cups.   This is an Octalink V1 bb, and is compatible with standard double Dura Ace 7700, Ultegra 6500, and 105 5500...

Erickson Titanium Bottom Bracket: 113mm x 68mm Square Taper - Vintage 1990's - RARE (Near Mint+ LOW MILES)

This is one of the ultimate square taper bottom brackets to come out of the 1990's CNC anodized aerospace era! It weighs a scant 156 grams, and sold for the insane price of $200 from roughly 1995-1998 ($425 in 2025 money!).  It uses a spindle...

NIB/NOS Zeus Criterium / Supercronos Bottom Bracket: FRENCH - 109mm - Chrome Crank Bolts

French threaded, Spanish made BB from the 1960's, 1970's, and early 1980's. Comes with gorgeous chromed "Zeus Made in Spain" crank bolts.  Similiar design to the 2000, but steel instead of the 2000's titanium! Condition New old stock in retail box...

Campagnolo Ultra-Torque BB86 Press Fit Bottom Bracket Cups: IC15-RE41 - 86,5×41 (NEW)

Press fit BB86 cups for Ultra Torque cranks. Condition New in opened retail box Details 86,5×41

Campagnolo Record 10/11s Ultra-Torque Bottom Bracket Cups: OC12-REG - BSA (NEW)

Record Ultra Torque bottom bracket cups.  Please do your research using the model number listed to determine compatibility with your crank/bike. These have seals. Condition New in factory sealed box Details Frame Interface: BSA/English...

Wheels Manufacturing PF30-BB Angular Contact BB for 30mm - Red (EXC)

Our original PF30 bottom bracket is a significant upgrade to any OEM PF30 bottom bracket. Two machined aluminum cups with replaceable bearings offer increased durability and bearing life, while keeping a simple press together method for installation...

Wheels Manufacturing BB86/92-AC Angular Contact BB for 24mm - Red (New Take-Off)

Our BB86/92 bottom bracket is a significant upgrade to any OEM BB86/92 bottom bracket. Two machined aluminum cups with replaceable bearings offer increased durability and bearing life, while keeping a simple press together method for installation and...

Wheels Manufacturing BB86/92-AC Angular Contact BB for 24mm - Red

Our BB86/92 bottom bracket is a significant upgrade to any OEM BB86/92 bottom bracket. Two machined aluminum cups with replaceable bearings offer increased durability and bearing life, while keeping a simple press together method for installation and...

Wheels Manufacturing T47-OUT-SHIM-AC Outboard Angular Contact BB for 24mm (Shimano) Cranks - Black

T47 threaded BB cups for T47 frames and 24.00mm spindle diameter cranks. Cups have outboard bearings, and are typically used in BB shells with widths from 68mm to 100mm. Machined aluminum cups thread together directly into a T47 BB shell. Bearings are...

Wheels Manufacturing Eccentric BB for PF30 & 24mm (Shimano) Cranks: Angular Contact Bearings - Black

Convert your PF30 frame to a single-speed setup with our simple to use eccentric bottom bracket. Enduro Angular Contact sealed bearings. Double lip seals on all bearings with high fill rate top quality grease for maximum durability. Machined aluminum...

Wheels Manufacturing BB-ROAD-14 Outboard Angular Contact BB for 24mm - Grey

External English (BSA) threaded road bottom bracket for 68mm shells. We use only Enduro bearings and silicone seals for the most durable and smoothest bottom brackets available. Fully serviceable. Condition New in box Details Bearings: Enduro...

Wheels Manufacturing BB30-OUT-3 Outboard Angular Contact BB for 24mm (Shimano) - Black

Two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing...

Wheels Manufacturing PF30-OUT-1 Outboard BB: 24mm (Shimano) - Black - ABEC 3

Thread together bottom bracket for frames using the PF30 bottom bracket standard. Two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance. This means no more...

Wheels Manufacturing PF30-OUT-29mm BB For SRAM DUB Compatible Cranks - Black - ABEC 3

PF30 with outboard bearing BB for use with 29mm spindle SRAM DUB compatible cranksets. The two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance. This means no...

Wheels Manufacturing PF30-OUT-3 Outboard Angular Contact BB for 24mm (Shimano) - Black - ABEC 5

Thread together bottom bracket for frames using the PF30 bottom bracket standard. Two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance. This means no more...

Chris King ThreadFit 24 Bottom Bracket: Red (No center shell)

The Chris King external threaded BB works for various cranksets with a 24mm spindle, from Shimano Hollowtech II, SRAM GPX, etc. Does not include fit kit or center shell. Condition Great used shape. Smooth bearings though they sound slightly dry. One...

Shimano XT BB-UN71 Square Taper Bottom Bracket: 114mm x 70mm (Near Mint, Perfect Bearings)

Like running square taper cranks, but tired of the bottom bracket weight?  This XT/Ultegra BB is nearly 100g lighter than the standard UN-52.  Sealed bearings, hollow spindle, buttery smooth. Condition Near mint very lightly used shape...

NIB/NOS Shimano XTR M900 BB-UN71 Square Taper Bottom Bracket: 107mm x 68mm

High end XTR bb-m900 gruppo bottom bracket. 107mm was the stock length for the XTR FC-M900 to get a 47.5mm chainline Condition New in retail box, pristine.  Details 107x68mm English threads JIS square taper

NIB/NOS Campagnolo Nuovo Record #1046/A Bottom Bracket: 114.5mm X 68mm English (Take off)

BB for 1977-1987 Nuovo Record Strada crankset, at 114.5mm long English threads.  Rifled thick cups.  The spindle is a world logo.   Condition New old stock, take off.  It was installed on a show bike, and then removed before...

NOS Zeus Bottom Bracket Accordian Sleeve: Ref. 53009.00

Fresh BB dust sleeve, accordian style. This fits between the cups and protects from dust and water.  circa 1970's to 1980's. Condition New old stock.  pristine Details Black

NOS Specialized Flag Bottom Bracket Spindle: 124.5mm x 73mm - Triple - Square Taper - 1980's - 1990's

This BB spindle is a mid 1980's version to work with the Specialized Flag crank among others. Works with most cup and cone bottom bracket cups. Condition New old stock, no box. Some shop wear Details 124.5mm x 73mm JIS square taper Markings: K-8

NIB/NOS Specialized Bottom Bracket Spindle: 122.5mm x 73mm - MTB Triple - Square Taper - 1980's - 1990's - Bolts

This BB spindle is a late 1980's to early 1990's version. It is a 122.5mm length, for many triple mountain bike cranks such as Shimano XT M730/M735/M739 / Deore / LX / DX, Specialized Pro, etc. Works with most cup and cone bottom bracket cups...

Prototype Sampson Stratics Titanium Bottom Bracket: Square Taper - 122.5mm (Near Mint+)

Sampson made some fine bottom brackets in the 1990's.  This is a prototype of the Stratics model circa late 1980's or very early 1990's.  It has a standard spindle type, the switch to the wildly shaped spindle center had not occurred yet...

Campagnolo Gran Sport Cottered Bottom Bracket Spindle #750: 1950's 1960's - 127mm x 70mm Italian (EXC+)

This RARE and collectible Campy spindle was part of the #1047 Gran Sport cottered bottom bracket that was made from roughly 1958 to 1965.  It would make a killer gift for the Campy fan who already has everything!  Campagnolo never made a...

ROTOR BSA30 Bottom Bracket Spanner Wrench

This is Rotor's external bearing bottom bracket wrench.  It is compatible with SRAM® DUB™, Zipp® Vuma™, Race Face® Cinch™, Rotor® BSA30, Hawk Racing™ BB3086™ From the...