Starting Line Products Brake Pads 27-99High performance carbon Kevlar GG rated compound for snowmobiles SL 452501 compound is a semi metallic material with Kevlar and carbon composites, that works in any conditions Max coefficient of friction is U0. 59 Minimal break in time required Composed of carbon and basalt fivers as well as aramid fibers and other special materials Brake lever pressure is reduced considerably with no rotor damage at all Excellent for race conditions