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- Shimano America Dura Ace FC-7900 Crankset One Color, FC-7900, 53/39, 172.5mm
Shimano Dura-Ace 7900 Cranksets are a legend sharpened to a new level of perfection. The Dura-Ace 7900 Series is ready to set new standards in professional cycling by providing the ideal symbiosis of lightweight, stiffness, and performance.Requires 10-speed compatible chainSG-X outer rings have steel chain pick-up tabs riveted to the inner face for positive upshiftsHollowtech II right arm includes 24mm OD BB spindleColor Dura-Ace Gray Crank/FD Type Road Double Crank Intended Use Road Chain Compatibility Shim/SRAM 10 Weight 663 g Spindle Interface Type Hollowtech II Spindle Length 110 mm Pedal Spindle 9/16″ Bolt Pattern 5-Bolt Chainring BCD 130 mm Arm Length 172.5 mm Rings 39-53