CIRCO M127 Race Brake Pads Street Cleaning Machine Working in City Editorial Stock Image Image. CIRCO M127 is a pure circuit racing brake pad for sprint race events. With some initial temperature introduced, this pad works right through to very high temperatures. High initial friction coupled with very good release characteristics mean this pad is for the drivers wanting to brake latest in short course Sprint and Time Attack formats. M127 requires a good pre bedding procedure and needs to be in the right temperature window for maximum efficiency. Pad wear is higher than other CIRCO compounds.