Thumping is a quick and dirty check for a grossly under pressure tire. This video shows the sound difference… https://youtu.be/6yboxSUt26s https://youtu.be/6ybo

Thumping is a quick and dirty check for a grossly under pressure tire. This video shows the sound difference… https://youtu.be/6yboxSUt26s https://youtu.be/6yboxSUt26s You can use a hammer, a bat, a pry bar, anything with some mass and some reach so you can easily hit the inner tire of the dual pair. (All of which are perfectly serviceable weapons in their own right.) And sure, in an ideal world maybe people would use gauges, or have internal monitors, or some fancy solution, but time is money and money is money, so a quick thumping suffices and don’t follow the trucks so closely that you get hit by the fragments went their retreaded tires come apart.