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Osymetric Dura-Ace FC-9100 chainring set 110mm noir

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  • O.SYMETRIC chainring kit 4-arm, bolt circle 110mm
    • oval shape for optimized movement
    • possible combinations: 34/46, 36/46, 38/46, 42/46, 34/50, 36/50, 38/50, 42/50, 44/50, 36/52, 38/52, 42/52, 44/52, 42/54, 44/54, 42/56, 44/56, 44/58
    • made of hardened CNC machined 7075 T6 aluminum for more stability and lighter weight.
    • Material thickness 4mm for large and 3.5mm for small chainrings.
    • Due to incorporated climbing aids, the shifting behavior is significantly improved.
    • Universally applicable in time trials, road races, cycling marathon and triathlon.
    • Suitable route profile: flat to extremely mountainous.
    • The choice of the winners of the Tour de France 2012, 2013, 2015 and 2016

    Advantages of oval chainrings
    • the point of death is overcome more easily.
    • a larger gear ratio is easier to ride
    • higher efficiency, i.e. reduced heart rate with the same power input
    • chronic knee pressure is reduced
    • the muscles work more easily, as does the cardiovascular system
    • higher speed uphill (approx. 5 seconds time gain per kilometer)
    • higher speed on level ground (approx. 3 seconds time gain per kilometer)
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    • large and small chainring
    • Front derailleur kit
    • Chain deflector
    • NO chainring bolts
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