Designed to complement the top-of-the-range Shimano Dura Ace brakeset, this efficient model features a fantastic stainless steel construction which allows for amazing strength on every run. Shimano has also given this superb component a Sil-Tec technology coating which delivers low-friction braking action and increased service life thanks to its anti-corrosion nature.  Technologies: Sil-Tec: SHIMANO’s ultra-low friction surface treatment. Superior to simple coating, SIL-TEC is an advanced plating process that improves system performance through the use of imbedded fluorine particles. SIL-TEC products run smoother and wear longer in all conditions.