Shimano consistently delivers quality tools and gear that help us maintain our rides to always have a good cycling experience. We like that the Dura-Ace/XTR Inner Shift Cable offers a faster shifting performance and more braking power with less effort needed overall. The polymer-coated cable provides advantages over the classic and PTFE-coated cables, and microscopic grooves of the polymer coating save fat longer and reduce friction between the cable and outer casings.