Stopping is just as important as going in cycling, so why leave that duty up to inferior brake pads? The Kool Stop The Dura-Type Carbon Brake insert pad was originally developed as an aftermarket upgrade for high end Shimano brake systems. It's perfect for dry conditions, but when the weather gets tough, they feature a special tip that removes water and mud from your rim. If you want to go with a pad that you know can handle the responsibility of slowing and stopping, then you'll be glad you chose Kool Stop. Carbon Fiber / Manufacturer's Part Number KS-DURACF Patented Plow Tip Water Grooves Rim Friendly Compounds