Molded composite RIGHT steering block redesigned to be used with graphite Ackermann meal to permit greater Ackermann and bump-steer adjustment range. The tiny yet tough steering obstructs are molded from super-tough, high-tech composite material. Due to superior molding tolerances, bearings fit perfectly to your steering obstructs without any additional play, providing maximum stability and steering. Marked R for effortless recognition. The steering block also accommodates the optional graphite Aero Disc #335270 for enhanced steering.