FSA FSA Speed Ahead 8420ST Power Drive Bottom Bracket - English 73x118mm FSA Power Drive Spindle Silver MFPN=F60077 model Lithion 4 size 700c

model Lithion 4 size 700c width 28mm compound Magi-X bead folding type non-tubeless color classic weight 255g

Convenient to use with thumb or any finger Color Glossy Black Material Brass

Available with ALPHA disc pulleys featuring ADR bearing protection or alloy 5-spoke pulleys and standard handbuilt CeramicSpeed bearings

The hands remain free during transport

11-36: Single (for double chainring be sure to not exceed the derailleur's capacity)

FSA FSA Speed Ahead 8420ST Power Drive Bottom Bracket - English 73x118mm FSA Power Drive Spindle Silver MFPN=F60077 model Lithion 4 size 700cReplacement 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