I have driven a couple of HUNDRED THOUSAND miles on Goodyear RSA tires, 225-70-15 and 225-60-16. Both sizes were on patrol cars. Those tires were used and abused with numerous rapid accelerations and decelerations, turning around on cars, wheel spin, etc. many times a day. Obviously treadwear suffered. They NEVER once let me down. They even worked well during the one night of wet snow we had (6 in). I drove 125 miles that night with NO problems not initiated by me (tried to spin it around in the road for fun, it wasn't). I would usually get 20k on a set. Most of my tires were replaced due to nails or foreign objects. At the Government rate, they are more than worth the money. At a retail rate, not so much. Although I had very good experience with them, there are much better tires for much less money.