Hawk Black- Competition This compound is a high coefficient, high temperature material providing excellent stopping power, fade resistance and long wear. It is extremely rotor friendly and provides instant controllable bite upon pedal application. Temperature range for this compound is 400 degree to 900 degrees F with a coefficient of .49. This compound is ideal for cars such as Formula Ford 1600 & 2000, Formula 440, Formula Atlantic, Sports 2000, C & D Sports Racers and all small to medium sized GT (Sprite/Midgets)cars. It is also ideal for stock cars on medium to light braking tracks, providing excellent pedal feel and controllable rolling into the corner. Also fits the Sprite and MG Midget .