Premium-quality, high-density foam tires (37deg - magenta compound) mounted on strong 34mm-wide XRAY Starburst wheels (made purposefully softer for extra grip). The foam tire is solidly bonded to the wheels and pre-trued to an optimal starting diameter. May be trued using HUDY Tire Truer with special wheel adapter. Fits M18MT. Set of 2 mounted rear tires.