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 spindle

Industrial 6002KRS cartridge sealed bearings with oversized 3/16” diameter balls

Cold forged aluminium cups

Double “snap” seals for water and dirt protection

Bottom Bracket Shell I.D.	34
BB/Frame Interface	English
BB Shell Width (mm)	73
Weight	335
Spindle Length	118mm
Defined Color	Silver
Size	73X118mm