I had bought a mack super liner made by imia . It was a Japanese sapporo beer truck. The kit was a battery operated kit and the trailer was kind of a flat Ben with a beer can on the back. In the kit it included the Dunlop sp r3 tires . To me the look mor like off road tires then truck tires . Are thy common with big trucks ???. The have to be on of the best tires in general I've ever seen in a kit. Are these common in kits as well .please excuse the fuzzy pics.