If only one tire is wearing faster on the inside, you may have a bent suspension part, like a spindle. That’s not the normal contact patch for tires, and you’ll see pronounced wear there.Īnother possibility is the axle has been flipped over (the bow in the axle that is supposed to be pointed up is actually pointed down). When the load is too heavy, the axle bows downward in the middle, causing the tires to roll pigeon-toed (more on the inside shoulder of the tires). When they are carrying the weight of whatever’s loaded, the axles straighten to a flat position and the tires come to a straight up-and-down position. When the trailer is unloaded, the tops of the tires lean slightly outward (toed-out, or duck-footed). Trailer axles are built with a slight upward curve in the middle. ![]() If all four tires are wearing heavily on the inside, the trailer is probably overloaded. Uneven load management instead of spreading weight evenly to all wheels/tires.Not towing level, which puts more weight and strain on one axle.Trailer misalignment or bent wheels from hitting curbs, potholes or debris.That said, rapid or significantly uneven trailer tire wear can be caused by: Over time, this scuffs off tiny parts of the tread, creating odd wear patterns. When a tandem axle trailer with four tires takes a tight turn, the inside tires will “slide” a bit rather than roll, because they have significantly less distance to travel. Generally, trailer tires don’t wear evenly: It’s just physics. What’s Causing Uneven Wear on My Trailer Tires? You’re not towing level (see question 1).Ĥ.One of the trailer axles might be damaged.The trailer is overloaded and the suspension could be damaged.You need to shift the weight inside the trailer.(You’ll feel bouncing that continues after going over a bump). Your tow vehicle’s shocks are worn or aren’t designed for the load.If your trailer still bounces while loaded, there could be other issues that need attention: Boat trailers, for example, are made with stiff, solid axles with loose springs, which causes them to jump a lot when not weighed down. What’s the Problem?Īny trailer hauled without its load will bounce. The ribs are often jagged and separated by grooves.ģ. Non-trailer tires have lots of voids and deeper grooves on the tread to evacuate water quickly for better traction. They’re designed with shallower grooves to improve fuel economy and help them run cooler, since hauling loads can generate a lot of tire heat. These tires are usually narrower to fit standard trailer wheels. The stiffer sidewalls on ST tires improve stability and reduce swaying. They have about 10 percent more load capacity than light truck (LT) tires of the same size and 40 percent more than an equivalent passenger tire. This makes them suited to bear heavier loads. Structurally, STs have straight, solid ribs - the ribs being the circumferential bands of strong rubber separated by grooves. ST tires are designed for carrying the heavy-duty load of travel and other trailers. ![]() Non-trailer tires are made to carry people. ST (Special Trailer) tires are a better choice. Is It Okay to Mount Non-trailer Tires on My Travel Trailer or Should I Get Special Trailer Tires?
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