Shimano Dura Ace 11-Speed Cassette CS-R9100 12-25

Description

We provide optimal 11-speed drive train gear ratio; you can choice wider and closer gear combination available to match various riding disciplines. Available with either Di2 electronic or mechanical shifting, for the first time, riders now have the option of premium DURA-ACE hydraulic disc brake performance. Available with either Di2 electronic or mechanical shifting, for the first time, riders now have the option of DURA-ACE hydraulic disc brake performance. Most advanced component group of all time: The Shimano Dura Ace 11-speed Cassette CS-R9100 With the introduction of DURA-ACE R9100, Shimano has reestablished the new benchmark for road performance by improving each component and incorporating its newest. New Shimano technologies further integrate the DURA-ACE as a system, including a new power meter, while riders further integrate with their bike through new E-Tube wireless connectivity. Lock Ring Technologies HG-EV HG-EV cassette sprocket is for rider-tuned gear combination & cadence management. DURA-ACE R9100 delivers unparalleled performance, highly-refined ergonomics and immense customization to maximize every rider's potential. Shimano's Rider Tuned philosophy and customization of the bicycle's function also expands with a wider range drivetrain that now includes intuitive Shimano Synchro Shift control. Engineered for the next generation of race bike, DURA-ACE R9100 offers top-tier performance across numerous configurations.

Key Features

• Shimano's Rider Tuned philosophy and customization of the bicycle's function also expands with a wider range drivetrain that now includes intuitive Shimano Synchro Shift control.
• Available with either Di2 electronic or mechanical shifting, for the first time, riders now have the option of DURA-ACE hydraulic disc brake performance.
• DURA-ACE R9100 delivers unparalleled performance, highly-refined ergonomics and immense customization to maximize every rider's potential.
• We provide optimal 11-speed drive train gear ratio; you can choice wider and closer gear combination available to match various riding disciplines.
• New Shimano technologies further integrate the DURA-ACE as a system, including a new power meter, while riders further integrate with their bike through new E-Tube wireless connectivity.
• Engineered for the next generation of race bike, DURA-ACE R9100 offers top-tier performance across numerous configurations.