I just took my American made marathons off after 9 years of abuse of towing to fast, gravel roads, and jumping curbs and like an idiot I didn't go with the endurance because no one had the size I wanted on hand and they were 50 bucks a tire more expensive then the Chinese ones I bought from ok tire. $270 a set for the Chinese tires that have a decent warranty outweighed the new endurance $410 price tag.