This is a set of classic indexing-era Shimano Dura-Ace crank arms, model FC-7400. These are 170mm in length. Both arms are in good-nice condition. Taking good photos of these highly reflective arms was hard.
Compatible with Shimano's Dura-Ace 9000 4-arm 110mm BCD standard ONLY. Overall condition is good with typical signs of moderate use. Freshly ultrasonically cleaned for their new owner.
Bottom bracket compatibility: Shimano Hollowtech cup set. Abrasions on crank arms surfaces. Crank arm and spider material: aluminum. Crank arm length: 172.5 mm. Chain compatibility: 10 speed. Chain rings: none.
175mm crank length. Shimano Dura-Ace FC-7703 Crankset. Shimano Dura-Ace Crankset. NOS, new in box Shimano Dura-Ace crankset in original box. Color: Silver. Weight: 654g (172.5mm with fasteners, no bb).
A few yrs ago I changed the rear cassette to 11-34 so also had to change this out to a GS/long cage derailleur-- so this derailleur has been sitting in a drawer for a few years.