FSA Vero Pro Crankset 2x 48/32T 175mm S9Full Speed Ahead Vero Compact 2x Cranksets feature aluminum crank arms aluminum outer chainring and inner chromoly inner chainring. Cold forged 6061 T6 aluminum crank arms Stamped ramped and pinned aluminum outer chainring Chromoly steel inner chainring Shimano SRAM 9 speed compatiable Polished anodized black finish with laser graphics Suggested for use with 103mm spindle for a chainline of 44mm (Bottom bracket sold separately)