LSW=Low Side Wall Even with the low side wall the tires ride well. I suppose partially due to being radials. I believe radials are manufactured under stricter quality controls than typical bias ply tires. This M4-071 is my ninth tractor. 6 new and 3 used. I'd like to point out for anyone who may care about money that the majority, if not all 4 wheel drive tractors, when in 4 wheel drive, for the system to function, the front tires must turn faster than the rear tires. On dirt, mud and slick surfaces it is a big help with maintaining traction. However, on dry hard surfaces you loose your rubber very rapidly. Oddly enough I have never had an issue not being able to turn off the 4 wheel drive. Every, without exception, 4 wheel drive tractor I have ever seen used, including backhoes etc have all had well worn or worn out front tires, or new from recently being replaced. Hard to understand! I digress. But, if this helps anybody, I'll be glad I mentioned it.