Shimano Ultegra FC-R8100 Crankset - 170mm,172.5mm, 175mm, 12-Speed, 50/34t, Hollowtech II Spindle Interface, Black 2022 Ships within United States Buy Online or Click & Collect Share Loading Facebook Like button... Shimano Ultegra FC-R8100 Crankset - 170mm,172.5mm, 175mm, 12-Speed, 50/34t, Hollowtech II Spindle Interface, Black 2022 Ships within United States Buy Online or Click & Collect Share Loading Facebook Like button...