I bought these tires to replace one of my Dixie Chopper lawnmowers. When I received them I noticed that they are very light tires and that they have a seam that runs down the middle of the tread. Despite skepticism, I mounted the tires on tractor rims for $25 a tire. As I picked them up, I noticed that the tread of the tire is very rounded, so the contact of the tread with the ground is only about 3-4 inches, meaning there is no traction. The image in the ad is misleading and shows no seam in…