When you're not buying racing tires, it's not uncommon to find tires that last 50 or 70k miles. Those are the lifespans I expect in my tires. If I were using ti

When you're not buying racing tires, it's not uncommon to find tires that last 50 or 70k miles. Those are the lifespans I expect in my tires. If I were using tires on a track, of course, those numbers would change since I would be buying track tires.