kzrocky wrote:Maybe I got ripped off too by the bike shop.
Only if they sold you a tyre that wasn't fit for purpose. (ie: you told them you will use it for commuting on rarely-swept bike lanes, and they suggested a race tyre).
Otherwise perhaps you mean the tyre manufacturer? There would be a small percentage of duds that roll out of the factory, but generally, they're pretty good with their testing/reliability. But, I don't know how far you'd get with them, for if the tyre has been 'sliced' it wouldn't be a manufacturing fault.