RCD takes pride in manufacturing gear sets that stand up to the most rigorous conditions in motorsports. The combination of high quality material and the latest gear cutting technology help our gears outperform the competition. RCD crank and cam gears are machined from heat treated 4340, our idler gears are machined from 9310 and case hardened. All our gears are finished to achieve a high AGMA rating resulting in a smooth quiet gear drive.