Pro-Line Dirt Hawg 2.2 Front/Rear Truck (2) Dirt Hawgs have a tread pattern similar to a full truck's. Unlike the Road Hawgs, the Dirt Hawgs have a Very Deep Tread. Fits any 2.2" truck wheel. If you're looking to take on the dirt as well as the asphalt, mount a set of Dirt Hawgs. Multi-Time RC Car Action Reader's Choice Winner. Includes foam inserts. · Award-Winning All-Terrain tread design · Molded in a durable, long lasting rubber compound · Includes foam inserts