BB90/BB90-Madone

The BB90 Madone was designed to be used in high-end Trek bicycle frames (2008 and newer) and some Gary Fisher bicycles. This bottom bracket is an internal, bearings only system so it fits completely within the frame shell. The bearings are compatible with a 24mm crankset spindle such as Shimano and FSA; and they can be used with an adapter for SRAM 22/24mm cranksets (select SRAM crank below).