Deegan 38 Tires 20% off and Ships Free. Deegan 38 is a champion-proven mud terrain tire. It delivers rugged looks, long-lasting tread-life, and versatility. It has stone ejector ribs to remove mud, stones, and dirt. The tighter inner-void with a large surface area improves handling and quieter ride. The wide outer voids give the tires aggressive looks and enhanced self-cleaning ability. Mickey Thompson Deegan 38 is ideal for all kinds of terrains.