SHIMANO FC-7900 Dura Ace Crankset, 170mm Review Posted by GiantPandaisy June 7, 2018 in Drivetrain Components This fits your . Make sure this fits by entering your model number. Shimano America Dura Ace FC-7900 Crankset One Color, FC-7900, 53/39, 170mm CRANKSET SHI FC-7900 170×39-53 10s Cycling Outdoor Recreation Parts & Components SHIMANO Sports & Outdoors