Performance improvement maximizing efficiency with the DURA-ACE R9100

Its objective is to reduce as technically possible the loss of energy between the effort of the cyclist and the real performance that it achieves. 

The concept of the new DURA-ACE R9100 It is based on the principle that each component must improve to optimize the contribution and maximize the results.

To this end, each of the components of the DURA-ACE R9100 has been developed to achieve maximum effectiveness in combination with the other components of the system. This is the concept of the components of the Shimano system. The result is a superior quality system that has truly reached the 'Systems Leadership'.

Synchronized change

The new DURA-ACE R9100 adopts the synchronized change, a system initially developed by Shimano for mountain bikes. This allows the user to activate both deviators by simply pressing a single change button. 

DURA-ACE R9100 includes a choice of power meter integrated, options disc brake hydraulic for increased stopping power, and new rim profiles that push your performance to a new level. There's also Shimano's E-Tube Bluetooth app, so user profiles can be downloaded to multiple Di2-equipped bikes and then optimized using smartphones and tablets.

Optimum power transfer

The concept of maximizing results while minimizing energy loss begins with the crankset. The updated design of the 2x11 HOLLOWTECH II crankset gives the DURA-ACE groupset an iconic aesthetic and improves gear shifting performance.

Power Calibration, Power Meter integrated in the Connecting Rod

With the first integrated power meter, the user now has access to highly accurate data. The FC-R9100-P is the first power meter of Shimano, in addition to the first integrated in the crank of the market. It offers the cyclist the most accurate system in the area of ​​power measurement. The 'brain' of the power meter is located in the DURA-ACE crankset, and the strain gauges are installed on the arms of the crankset to measure the power of the right and left leg.

Therefore, by minimizing energy loss through each component, DURA-ACE R9100 is a premium drivetrain. Incredibly reliable shifting performance thanks to synchronized shifting, coupled with better braking performance and the efficiency of aerodynamic wheels, has resulted in a superior system. 

The unrivaled performance of the new DURA-ACE R9100 is undoubtedly the result of the most advanced system in Shimano's 95-year history. 

For more information visit: dura-ace.com.