Apparently the thread dept on the swamplites varies with the size of the tire. As far as the tire goes I heard that they ride better than the mudlites on hard pack. They do have a rim guard too apparently last a lot longer than the mudlites. Only bad thing I have heard about them is that some people think that they keep too much mud stuck between the thread. I also have plans to swap my super light tires for Swamplites.