Swiss Stop Green High Performance Brake Pads Smooth Post Cantilever Compatible. Highly technical compounds developed at Swiss Stop's in house research laboratory are the foundation of every SwissStop product. High performance, all weather compound for aluminum wheels. Race proven with victories at the Olympic Games, World Championships & World Cups. Swiss Stop Performance GHP Green Pads provide ultimate braking performance for aluminum wheels. The GHP pads for aluminum wheels can resist temperatures in excess of 300 degrees Celsius and still maintain their performance. Paired with temperature resistant comes longevity, and these pads have them with better than standard rubber life. Swiss Stop managed to pack even more into a tiny brake pad, allowing them to run quieter than regular rubber pads. This may have something to do with the fact that these pads do not collect aluminum thus also increasing the life of the rim. Best brake performance on dry rims and even better performance on wet rims ! Complete absence of abrasive materials which could damage the rims ! Near silent operation ! Consistent brake power from 20C to + 40C The Swiss Stop Performance GHP Green pads come as a set of 4 pads, enough for both front and rear brakes.