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Shimano Dura Ace R9100 11 Speed Groupset

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The Shimano Dura Ace R9100 groupset is the result of a lifelong passion for technology. A sleek and powerful design, resulting from science and research. Shimano has improved every individual components for the Dura Ace R9100 groupset to create a superior drive train.

The R9100 series crankset achieves the ultimate in optimal power transfer. It does this through its broader Hollowtech II arm and a more reinforced outer chainring on its unique asymmetrical four-arm spider construction. The new R9100 cranks set the highest standards for stiffness and lightness.

 

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