For example, a common trailer tire size is ST225/75R15. ST stands for special trailer and indicates that this tire is designed to be used on a trailer. 225 is the width of the tread in millimeters. 75 is the height of the sidewall represented as a percentage of the tread width.
How do I know what size trailer tire I have?
Trailers can only use ST tires, and ST tires can only be used on trailers. After ‘ST,’ you’ll see the numbers used to indicate your trailer tire’s size: 215, width in millimetres; 75, aspect ratio or ratio of height to width; R for radial construction; and 14 for rim diameter.
What size is a 15 inch trailer tire?
These Loadstar 15 inch trailer tires come in two popular sizes, 205/75 and 225/75, each are also available in Bias ply and Radial Trailer Tires.
What does 4.80 12 mean on a trailer tire?
Yes, a 4.80-12 trailer tire uses a 12 inch diameter wheel that is 4 inches wide. The 4.80 spec is the width of the tire. I have attached a link to all of our 12 inch x 4 inch trailer wheels for you to check out. They come with either a 4 on 4 inch bolt pattern or a 5 on 4-1/2 inch bolt pattern.
Are Bigger tires better for trailers?
Simple physics: Wider tires = more road resistance = more power required to pull = lower MPG while towing. Trailer builders use smaller tires to save weight and cost.
Can you use car tires on a trailer?
Never use passenger tires on a trailer. They are usually rated Load Range B, a 4-ply equivalent, because their sidewalls are flexible for a smooth ride—far too flexible for trailer duty. They are not engineered to stabilize heavy loads or to handle the temperatures that build with them.
What is the difference between 4.80 and 5.30 tire?
A 4.80-12 tire will be 20.5 inches in diameter whereas a 5.30-12 tire will be 21.9 inches. You would need to make sure that the is more than 3/4 of an inch above the 4.80-12 tire to be able to use a 5.30-12. The smaller 4.80-12 is 4.9 inches wide.
What does 4.80 8 mean on a tire?
Lawn tractor tires using the two-number system display numbers as 4.80-8, for example. This means the tire’s width is approximately 4.8 inches and the rim is 8 inches in diameter. Those are the only two numbers you need to find the right size replacement tire.
What does D mean in tire size?
The D is the designation for the internal construction of the tire. The D stands for diagonal or bias ply construction. That means the tire body plies inside the tire will crisscross. The 15 is the wheel diameter in inches and the C after the tire size will designate the load range.
What is the tallest 16 inch trailer tire?
The highest-rated 16-inch trailer tire we offer is the Load Range G Provider ST235/85R16 Radial Trailer Tire # TTWPRG235R16. This tire’s maximum load capacity is a whopping 4080-lbs at 110-psi cold tire pressure when used in a single-tire application.
Can you run two different size tires on a trailer?
An important point of consideration is when using two different size tires, the load has to be no more than the capacity of the lowest rated tire. With this substantial difference with both weight capacities and inflation levels, the chances of inadvertently overloading on the smaller side tire is quite possible.
What is the next size up from 4.80 12?
Expert Reply: The most common tire size people go to from the 4.80-12 is the 5.30-12 like the Taskmaster 5.30R12 Radial Trailer Tire # TT53012C. This will give you a width increase of 1/2 inch and a diameter increase of 1.4 inches.
What does LRB mean on a tire?
Load ranges are equivalent to previous plies and are thus called “ply rated.” For example, a Load Range B (LRB) trailer tire is 4-ply rated, rather than 4 -ply; LRC is 6-ply rated, and so on. The following chart represents this comparison: Load Range Ply Rating.
Why do trailer tires wear out so fast?
That said, rapid or significantly uneven trailer tire wear can be caused by: Riding with the wrong tire pressure. Exceeding your tires’ load capacity. Trailer misalignment or bent wheels from hitting curbs, potholes or debris.
Should I run my trailer tires at max pressure?
It’s really important not to overload trailer tires. Overloading tires can cause premature wear and increase the risk of tire failure. The “Max. Load” information stamped on the sidewall indicates a tire’s load capacity when it’s inflated to the maximum PSI.
Does wheel size matter on a trailer?
You’ll need to ensure they match the trailer hub. A larger rim and tyre size may actually place more stress on the axles and springs. If you replace the existing wheels with larger ones, the trailer might not sit level with your car, putting stress on the towball.
