This new DURA-ACE HOLLOWTECH II Carbon crankset combines an aerodynamic design with remarkable weight savings, top functionality and a precious finish. Shimano again increases the high level of this characteristics. The crankset is a limited edition, available now. It guarantees the ultimate upgrade of DURA-ACE components for road bike enthusiasts. Even though its classification with FC7800-C the precious crankset is fully compatible to the new DURA-ACE 7900 series. The sophisticated combination of the used carbon wherever applicable, aluminium wherever needed ensures optimum power transmission and reduces weight to 22 grams compared to the standard FC-7900 aluminium crankset.