Before attempting to remove and mount tires on rims, there are important safety precautions to know. Serious personal injury can result if proper caution is not observed. Tires can explode if attention to certain details goes overlooked. 

* Always be sure the tire is of the specified size and construction for the rating of the wheel. Don't ignore tire changer air pressure.

* Check that the wheel diameter matches the diameter molded on the tire sidewall.