FSA Full Speed Ahead Vero Compact Cranksets feature an outer aluminum chainring with an inner CroMoly chainring. ShimanoSRAM 9speed compatiable Coldforged aluminum crankarms Stamped, ramped and pinned alloy outer chainring CroMoly inner chainring Item Specifications Color Black Weight 699g Spindle Interface Type Square Taper JIS Spindle Length 110mm Pedal Spindle 916 Bolt Pattern 5Bolt LI