IRC M5B Evo Tires Features If you are a racer, M5B EVO Mud-Soft Tires are the ideal choice for running in the mud or through the sand Designed for soft loam and muddy tracks Self-cleaning tread and the outstanding traction ability of the IRC Mud-Soft makes it ideal for hill climb racing Tube type tires Need your tire mounted Weve got you covered! Tire Mount Discount