I run the et streets, 26x11.5x16 on stock steel spare tire wheels. Hook like crazy! I've seen high 1.6 60's. Dont try to drive on them to far on the street, they have a tendency to go wherever they want sometimes and I dont think they would last very long. Also, make sure you've got some type of traction bar or the driveshaft might look like a pretzel after a few passes...