Silky smooth gear changes are a feature of each Dura Ace group. The cassettes steueren this überragendem shift feel for a substantial part. Designed exclusively for the chain tooth shapes and shift aids a gear change can be described almost as a sliding of the chain between different sprockets.
As a technical high-lights the cassette has 6 small steel pinions for high durability and 5 larger pinion of titanium for minimum weight. Due to the different burden for small and large pinion large titanium sprocket wear just as slow as the smaller steel pinion. In order to respond to demands for ever lighter components sets Shimano the largest sprocket addition to a carrier made of carbon fiber reinforced plastic. This newly designed carrier is lighter than the previous Spider Aluminum in mechanical properties at eye level!
Material: aluminum, steel, titanium, carbon
Switching stages: 11
Weight: from 166g