DS1.11 are the real deal when coming to ceramic technology. These pads are based upon a chemical family known as Siloxanes. Unlike carbon based materials, siloxane does not decompose at high temperatures and so DS1.11 keeps on working up to the highest temperatures a brake pad could ever see. Meaning they will not fat and have excellent life. Performance remains exactly the same through the pads long life. Formulated to provide a flat friction profile at medium/high level of friction. The pads compression is very low, always, so the pedal travel is short and consistent.