The Omega crankset is where fashion meets function, combining sleek styling with robust industrial design elements. Updated 11-speed compatibility puts the latest shifting technology into an attractive, price-conscious crankset. - Die-cast aluminum crank arms are lightweight and durable - Chromoly chainring bolts - Fits Shimano and SRAM 10-11 speed systems - Number of Chainrings: Double - Pedal Spindle: 9/16" - Chainline/Hub Compatibility: 130 Hubs - Rings: 50/34 - Spindle Interface Type: FSA MegaExo 19 - Chainring BCD: 120, 90 - Bottom Bracket Included: No