FSA FSA Speed Ahead 8420ST Power Drive Bottom Bracket - English 73x118mm FSA Power Drive Spindle Silver

Replacement bottom bracket for FSA's Power Drive splined cranksets. The stiff forged hollow chromoly spindle is supported by a pair of sealed industrial cartridge bearings. Additional weather protection comes from double "Snap" seals.Forged hollow SCM4130 chromo spindleIndustrial 6002KRS cartridge sealed bearings with oversized 3/16" diameter ballsCold forged aluminium cupsDouble "snap" seals for water and dirt protection