I can't imagine a 25k tire that is safe. I had tires that went about that far in the 70's because back then they used compounds like a car. I also went down innumerable times back then with the slightest provocation. (slight wetness, a few grains of sand, oily pavement etc) I ride today in a fashion that would have me eating pavement on a daily basis if i were still using those compounds. Dave, you are always citing logical reasons for your thinking, and logically it makes no sense that any manufacturer could produce a safe tire that out wears all others by 60-80%. Unless they came upon some revolutionary new compound or technique, others would have done this by now.