Business How to Trailer Tire Basics – How To Keep Them Lasting Longer! Trailer Tires, marked by the classification ST, are tires intended for use on a trailer. They are a different type of tire than your average car and have different requirements. Despite this, many people will make the mistake of putting a car tire on a trailer. This is unsafe, and can lead to a blowout. […] Written by imesocial July 12, 2020July 12, 2020