My old Isuzu pickup had some wonderful 225/70/r15 bridgestone tyres originally, they looked good but they didn't last too well. So today I have bought some Bidgestone Potenza 215/65/r15 at over 3K each.

Then I hear some tyres out here are not really made from proper rubber and of course they look good but don't wear too well.

How the hell do you tell what is real?