Shimano DuraAce 7900 Cranksets are a legend sharpened to a new level of perfection. The DuraAce 7900 Series is ready to set new standards in professional cycling by providing the ideal symbiosis of lightweight, stiffness, and performance. Requires 10speed compatible chain SGX outer rings have steel chain pickup tabs riveted to the inner face for positive upshifts Hollowtech II right arm includes 24mm OD BB spindle Item Specifications Color DuraAc
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