specialized giant cube cannondale Mavic Castelli endura altura
From £339.99
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  • Product Description

    The HollowTech II 10-speed Dura-Ace chainset offers the optimum balance of light weight and rigidity, making it the global choice for road racings elite riders

    The Features of the Shimano Dura-Ace Double Chainset FC7900 are:
      • Shimano has raised the bar to a new level of performance with the development of a hollow outer chainring, giving vast improvements in rigidity and increased weight savings

      • There is a wide range of chainring ratios and crank arm lengths available enabling customisation for all riders and racing disciplines

      • The hollow outer chainring has essentially removed outer chainring flex, hugely improving shift performance making it precise even under high load

      • These industry leading HollowTech II cold forged hollow crank arms have been evolved to increase rigidity, lighten the ride and improve strength

      • The teeth have been developed to work only in conjunction with the CN7900 chain for improved contact giving more efficiency and improved power transfer

      • Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling and increased durability

      • HollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency

      • Weight including bottom bracket (not included)725 grams

      • Bottom bracket cups required

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