I have a set of Specialized "StrongArm" 7050 splined hollowtech cranks that came on 2003 bikes and were made for Specialized by Shimano (according to Specialized's website). Does anyone know what Shimano cranks they were equivalent too? They are identical in appearance to XT Hollowtech (splined) cranks except for the color. And does anyone have any experience using these cranks? I have a set that have barely been used that I'm considering replacing 3 year old, scuffed, dinged, with worn chainrings XT cranks with on a new build. Both cranks use ES-71 BB. Any help would be appreciated.