9. Look For Prior Patches
Once the structural integrity of a tire is compromised, it will never be the same again. Tires that have been previously punctured are far more likely to have a blowout in the future, even if they have been patched or sealed. These patches are meant to be temporary fixes and many of them are held in place by the air pressure inside a tire. When tires are removed, those patches or seals can come loose. Check all used tires for signs of prior repairs, and steer clear of ones that have been repaired in the past.