Cycling > Bottom Brackets

Profile Racing Splined crank spindle 3/4" (19mm), 48 splines; Fits many BMX cranks (check spindle size & spline) Profile Racing spindles require standard (S.A.E) bolts

Profile Racing TubeSpacer Fits between BB bearings GOLD, SHORT, 3/4 x 2.036", American or 73mm Euro SILVER, LONG, 3/4 x 2.063", STAINLESS, SILVER, 7/8 x 1.89", for 68mm Euro STAINLESS, GOLD, 7/8 x 1.84", For American

Replacement crank bolt / puller assembly for Race Face outboard bearing (X-Type) cranksets. 

Replacement set of outboard bearing cups for use with Race Face X-Type cranksets. Includes left and right cup Packed with premium Phil Wood grease

#03107 The Evolve DH BB uses the stronger M12 spindle and is intended for single chainring DH bikes. It has a longer 118 mm spindle with an offset drive side cup for use with chain guides. All Evolve Series BB's feature slide on cartridge bearings with full ball construction. These...

#03105 The Evolve FR BB uses the stronger M12 spindle and is intended for riders that want the strength of a DH BB but want to use a triple chain ring setup instead of a chainguide. All Evolve Series BB's feature slide on cartridge bearings with full ball construction. These...

The SRX bottom bracket uses two 32 count bearings rather than three 48 count like the rest of the Race Face Evolve BBs to keep the cost down. All Evolve Series BB's feature slide on cartridge bearings with full ball construction. These are lighter, stiffer and feature a higher load...

The Race Face ISIS Signature Bottom Bracket utilizes double-row angular contact bearings with a proprietary non-side-loading design. What does all this technical jargon mean? These bottom brackets will keep spinning when others have come to a spine-tingling, screeching halt.

#03050 As a direct descendent of Dura-Ace, no other road component group provides the same cost-performance value as Shimano 105. The 8-spline interface between the BB and crank arm forms a strong highly rigid connection that reduces weight and increases strength. Material: Hollow chromoly splined spindle with alloy non-drive side...

Shimano Dura Ace BB Cup Set The Shimano Dura-Ace 7900 BB Cup Set is smooth rolling and lightweight, making for an efficient bottom bracket. New seal design provides smoother rotation and increased durability Weight: 90 grams

Shimano ES25 Octalink Bottom Brackets. BB Shell Width: 68 mm BB Thread Type: English Spindle Interface Type: Octalink V2 Crank bolts are sold separately

This is an "OE", or "original equipment" item. Components with this description are from brand new bicycles which have been previously assembled, but never ridden. OE items may be delivered in plain packaging and may not include instructions. Because these items were removed from complete bicycles, they may show minor...

These spacers fit underneath the bearing cups of Shimano Hollowtech II cranksets.  Sold singly

Bearing cups for use with the new Shimano 7800 Dura-Ace crankset only (spindle is permanently attached to right crankarm). Use Park Tool BBT-9 tool to install this item.

Shimano Ultegra 6700 BB cups Includes cups, bearings, and sleeve

Shimano UN-26 Bottom Brackets

Shimano UN52/LP26/CT91 non-drive side.

Replacement crankarm fixing bolt for XT-760 and Saint M800 Hollowtech II cranksets.

XT FC-M761 Bottom Bracket 1.8, 0.7mm Spacer

These are the replacement bearing cups for the Shimano XTR 960, XT 760, and Saint outboard bearing cranksets. These bearing cups cannot be used with other makes/models of cranks or bottom brackets. Use Park Tool BBT-9 tool to install this item. Please note: this item is sold individually. If you...

SRAM GXP Mountain Ceramic BB Cups When every watt of power counts, ceramic bearings give you the edge you need to take you to the top.  Ceramic bearings roll smoother, last longer and are lighter weight than traditional steel bearings. Fits GXP SRAM/Truvitiv MTB cranksets(including XX) Fits 68 or 73mm...

Sugino square taper BB3. Designed by Sugino for its RD48 cranksets.

TH Industries Power Pro ISIS BB

TruVativ Giga Pipe Team DH bottom brackets Giga Pipe is a massive Ti or heat-treated CroMoly spindle for increased stiffness Precision full-complement sealed cartridge bearings M15 crank bolts inlcuded (unless noted) Requires TruVativ installation tool

TruVativ Giga Pipe Team SL bottom brackets Giga Pipe is a massive Ti or heat-treated CroMoly spindle for increased stiffness Precision full-complement sealed cartridge bearings M15 crank bolts inlcuded (unless noted) Requires TruVativ installation tool, TL2340 Three bearings with two on drive side for extra life