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

Specifications:

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