R1 SUPER Heavy Duty Series Brake Pads are heavy duty brake pads designed for only the toughest of vehicles. Because of this, they may be more expensive than other options - but they're really the only safe option for those who are hauling heavy loads or off-roading. With an asbestos-free and copper-free formula, these brake pads are also safe both for drivers and the environment. We have designed our R1 Concepts SUPER Heavy Duty Series brake pads to provide the absolute best performance while also limiting the amount of wear and tear on heavy duty vehicles doing super heavy duty things.