Maximum performance and low noise with no compromise on components. With this in mind Campagnolo engineers designed our Super Record sprockets with double frame on the last two sprocket triplets. This results in a more solid and lighter frame, thanks to the use of titanium in the 6 larger sprockets. The Ultra-Shift teeth design has been upgraded to make shifting faster, with perfect synchronization and to eliminate chain stress. Steel-titanium 6 titanium sprockets version is an excellent compromise of weight savings and cost Sprocket synchronization improves shifting precision and decreases strain on the chain Special tooth spacing for longer life and lower wear Nickel-chrome surface treatment on steel cogs for longer life and less wear Light-alloy lock ring for weight savings