Product Overview
Optimum R-4 operating temperatures are 450ºF and above. When used with cast iron and steel alloy
rotors, the R-4 compound requires minimal bed-in period. Throughout the entire heat range, the Carbon Kevlar
material will give extremely consistent modulation and predictability smooth release characteristics up to threshold. Another benefit of our R-4 compound is that even with the high friction levels and broad temperature ranges, the unique properties of our compound allows the rotors life to be extended to the maximum. This is truly the most rotor friendly racing brake pad material ever. Road courses, oval track, rally, vintage racing, autocross, club events or professional racing events. Tested and raced in countless types of competition vehicles, the R-4 compound from the outset has established its reputation as a Championship winning brake pad material.