Shimano Dura-Ace Hollowtech II FC-7900 Crankset - Double - 53/39T

by: Shimano

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This sleek aerodynamic Dura-Ace Hollowtech II crankset features significant weight saving and increased rigidity through the use of a 20% stiffer chainring, resulting in optimal shifting & power transfer. Thin-walled forged aluminum crank | Lightweight & Strong Hollow chainring | Lightweight & rigid New tooth design | Improved chain contact for power efficiency Revised seal design for BB adaptor | Smoother rotation and longer durability  

    • Smoother rotation and longer durability.
    • SG-X outer rings have steel chain pick-up tabs riveted to the inner face for positive upshifts
    • 5-Bolt, 110mm bcd chain rings
    • Lightweight & Strong Hollow chainring
    • Weight:  637 grams
Lightweight & Strong Hollow chainring

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