These high performance carbon/kevlar brake pads are made of a GG-rated compound especially for snowmobiles. The SL 452501 compound is a semi-metallic material with kevlar and carbon composites, which works in any condition, hot or cold weather. Minimal break-in time is required. It is also composed of carbon and basalt fibers as well as aramid fibers and other special materials. This special composition makes the SL 452501 a fade-free material that is excellent for wet or dry conditions. These pads are excellent for race and trail conditions. Sold per set.