Square Taper Bottom Brackets

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...

Mavic 610 FIXE Floating Bottom Bracket: 116mm - ISO (EXC)

The legendary Mavic BB is a unique piece.  It's cups do not have threads, and is often called a "floating bottom bracket".   It is ideal for a frame which has damaged bottom bracket threads.  This requires special tools for installation...

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...

NOS Suntour Superbe Pro BB-SB11 Bottom Bracket: 112mm x 70mm - Chrome Bolts (Take-Off)

These are one of the nicest square taper brackets made in the 1980's and 1990's.  It's cups feature deeply inset rubber seals to protect the bearings.  Includes chrome Suntour logo mounting bolts Condition New old stock, take off! Spindle...