Perseverance makes a driver to victory Driver - Stay in the fast lane 11-speed drive system of the latest generation: For the new DURA-ACE 9000 series Shimano has redesigned each component of the system to provide the most innovative component group of all time. One of the outstanding results of this new development is the variety of translation options, which corresponds to the already known "Rider Tuned" concept. The new 11-speed drive allows each driver, "tune" his bike for each specific intended use by various gradations. With its revised gear ratio in combination with the ST-9000 switch | Brake lever and the polymer coated coatings makes the new Dura Ace derailleur both shorter lever paths as well as for reduced shifting forces.
Finish: Mounting by clamp or braze Compatibility Setting: seat tube diameter 28.6 / 31.8 / 34.9mm Compatibility Shifter: 11 speed Shimano Dual Pull ST-9000 Capacity: 2-fold with 16 teeth difference between the largest and smallest leaf Color: black - silver