Used tires are always a gamble. It is not how they look but what they have been through. See some can hit an object very hard and destroy the rim but the tire could appear to be fine. When in fact the tires steel belts could have seperated and they are a accident waiting to happen. This happen just recently here where I live where a person bought tires from a used tire place and they looked brand new. They were in the mountains in North Carolina and around the turn the car blow a right front tire and they went off the mountain killing the occupants. The found the sales slip where they got the tires and the police investigated those tire and found they had previously been on a car that had been completely destroyed in a head on collision. The place that sold them the tires is closed and the owner is being charged with manslaughter.
So it is a gamble on used tires.
