Full Speed Ahead 8420ST Power Drive Bottom Bracket - English 68x118mm Full Speed Ahead Power Drive Spindle Silver MPFN-13-000475 3 speeds with a 186%

3 speeds with a 186% gear range: 1st gear = 0

Lightweight CNC machined aluminum (weight: 63g)

}MRP G2 Pulley

}Park Tool SW-16 Square Spoke Wrench: 3

Full Speed Ahead 8420ST Power Drive Bottom Bracket - English 68x118mm Full Speed Ahead Power Drive Spindle Silver MPFN-13-000475 3 speeds with a 186%Full Speed Ahead 8420ST Power Drive Bottom Bracket English 68x118mm Full Speed Ahead Power Drive Spindle Silver. Replacement bottom bracket for FSAs 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