Earlier in the week I was at a truck stop when a Peterbilt long nose pulling a Flat bed parked. Later when he came out it wouldn't start. I went over and asked if I could help. He said no it will start when it cools off. Now. While standing there I noticed the left front steer tire had "scallops" which seemed to be intentionally cut into the outside edge of the tire about four inches apart all the way around the tire.They were outside the farthest outside groove, but still on the edge of the tire face that would contact the road. What is the reasoning for it?.
