A single-speaker YouTube instructional video in which the presenter explains why rotating bald or unevenly worn tires is unsafe, especially placing heavily worn tires on the rear (risking oversteer). The speaker demonstrates inspecting tires and balancing a large (37-inch) tire, mentioning measured balance weights and force values during the procedure.
Let me show you why we couldn't rotate these tires. A lot of shops don't care. They just gonna rotate them anyway. But let me show you why we shouldn't. Sound still pretty good, right when you get here on the inside, you dead bald, half the tire. So some, some shops like. Man, that's good, man. You go ahead and do that, but you put these things on the rear, that truck right there, the big old heavy truck, you liable to slide it over. And what I mean by slide it over, you're gonna over steer. So unless you're a pro drifter, that's why you don't put these things on the rear. So it's like this one here. There's a passenger front, look at that. On the outside, still pretty good. But the inside's like that. A lot of would still rotate these tires. Now, his rear tires are still pretty good. So the fronts are shot. Rears are still pretty good. Pretty decent. About halfway worn. He said, man, forget it. Just go ahead and give me a whole new set of them. Now let's go ahead and balance one of these things out, show you what they do. All right. Now, before we bounce the big old 37, let's go ahead and take that damn sticker off. Tire spinning. All right, we got that roller down. All right. Roller about to come on. Where we at now? We had three and a half ouches, half ounce here and only 12 pounds of force. That's a big old 37 inch tire.