We took our 37-inch prototype tires to the local tire shop for a proper mount and balance. The tires weighed 110 pounds mounted on the American Outlaw Patrol wheels and 85 pounds dismounted. They measured 36 inches tall at 30 psi and had a tread depth of 5⁄8 inch. The wheel and tire combo required between 53⁄4 and 10 ounces of weight to balance. Not exactly perfect, but again, these are prototypes.