I replaced my made in Canada Marathons with made in China Marathons. I expect no issues. They are run at the correct pressure, no where near overloaded, always drive under 65 (although to be fair, that's just to save gas), tires are 303'd and covered anytime the tt is sitting. Goodyear may have had a bad run of Chinese Marathons a few years back, but I am completely confident they have rectified that situation. FWIW, the Maxxis on my mountain bike are made in China and they're all cracked to sh*t.