The RP2 compound is engineered for endurance racing based on the highly successful XP series. RP2 has a strong initial bite, a little less modulation than the XP12, but still maintains the rotor friendliness. RP2 has a great fade resistance with a temperature range of 250°F to 1450°F+ (121°C to 787°C). RP2 is as rotor friendly as the XP series. NOT for street use.