The Omega 386EVO 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 aluminium crank arms Fits Shimano and SRAM 10-11 speed systems Length - 165mm,170mm, 172.5mm, 175mm BCD - 120/90mm 46/30T Painted bead blasted black Printed graphics