Loadstar ST225/75D15 Bias Trailer Tire - Load Range D

Ask the Experts about this Kenda Trailer Tires and Wheels

• 10-Ply Load Range E Special Trailer Tires in Size ST225/75R15
  The special trailer (ST type) tires that we offer in your 225/75-15 size have either a 6-ply, 8-ply or 10-ply rating. The tire you referenced # AM1ST96 is an 8-ply but in 10-ply we have the following Load Range E tires that are "10PR" like your tire in your photo. # 724857519 Goodyear Endurance ST225/75R15 Radial Trailer Tire - Load Range E # AM10303 Karrier ST225/75R15 Radial Trailer Tire - Load Range E # LHWL304 Westlake ST225/75R15 Radial Trailer Tire - Load Range E # C22515E Contender...
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• Can a Radial 225/75-15 Size Tire be Used as a Replacement with Other Bias Tires of Same Size
  Although radial tires are better for highway use if you are currently using bias tires and you are only replacing one then you need to get a bias. Even if the radial and bias tires you are using are rated for trailers they track and wear slightly differently. To replace your bias tire I recommend the Kenda Loadstar ST225/75D15 # AM1ST96 which has a load range D ( 2,540 lbs at 65 psi) and a speed rating of 81 mph. If you are wanting to change them all to radial then I highly recommend...
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• Is LoadStar ST225/75D15 Bias Trailer Tire a Tubeless Tire
  Good question; the Loadstar ST225/75D15 Bias Trailer Tire - Load Range D # AM1ST96 is a tubeless tire, and that is the norm for trailer tires now. Bias tires don't require a tube, and even though some people still use them, we do not recommend it because it can cause the tire to overheat if towed at any type of speed. You've made a smart choice with the Loadstar, which are highly rated tired by our customers, as you can see by the outstanding rating in the customer reviews section on...
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• ST225/75R15 Tire Mounted on a Galvanized Wheel with a 5 on 4-1/2 inch Bolt Pattern
  The size difference between the two size is that the ST225/75-15 will be about 1.4 inches taller than a ST205/75-15. For a tire in the ST225/75R15 size on a steel galvanized rim with a 5 on 4-1/2 inch bolt pattern you would want the part # AM32468. This is a radial tire which is a better construction than the bias-ply you mentioned. A radial tire flexes more than a bias tire, giving it better ground contact, traction, stability, and tread wear. A radial tire will normally run cooler...
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• What Should Trailer Tires Be Inflated To and When
  The trick with trailer tires is to inflate them to the max psi figure listed on the sidewall when they are cold and you are good. You do not need to anticipate pressure increasing from heat as this figure has already considered that. So first thing in the morning (or before you tow the trailer for the day) check to make sure that your tires have 80 psi and you'll be good. Also be sure not to exceed the speed and weight ratings on the tire! I attached a help article on trailer tires...
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• How Much PSI to Put in the Loadstar ST225/75D15 Bias Trailer Tire Part # AM1ST96
  If you are referring to the Loadstar ST225/75D15 Bias Trailer Tire part # AM1ST96 then you will want to fill them to 65 psi which is the max psi for this tire and what we recommend filling them to. If you did not fill them to the max psi then you would not receive the full load carrying capacity of the tire which is 2,540 lbs. If you are referring to another tire then the max psi will be listed on the sidewall.
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• Troubleshooting Trailer Tires Wearing Out on the Outside Treads
  The wear is going to be the same with a bias tire or with a radial tire so changing out the style will not help with what is causing the wear. If the tires were over inflated, the center treads would wear. Under inflated tires would show wear on the inside and outside treads. If the wear is just on the outside then the tire is riding at a slight angle with the bottom pointed more in toward the trailer than the top. You will need to check the suspension components, axles, spindles, to...
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• Options for an ST225/75-15 Load Range D Trailer Tire Mounted on a Wheel with 6 on 5-1/2 Bolt Pattern
  Yes, we do have several options for an ST225/75-15 tire, load range D, on a 15 inch wheel with a 6 on 5-1/2 inch bolt pattern. We have the following options: # AM3S870 with regular steel wheel and bias ply tire # AM32664 with regular steel wheel and radial tire # AM32666 with galvanized wheel and radial tire # AM32673 with modular steel wheel and radial tire # AM3S913 with aluminum wheel and bias ply tire # AM32669 with aluminum wheel and radial tire # AM32575 with black steel...
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• Can an ST225/75D15 Tire be Used as a Temporary Spare for an ST205/75D15 Trailer Tire
  You can use an ST225/75D15 as a temporary spare (provided the wheel is 6 or 6-1/2 inches wide) but you definitely do not want to have it on for long. I would say that it is fine to use to get you to a place that can repair or replace the 205/75-15. For replacement 205/75-15s we have a load range C, # AM1ST92 and a load range B # AM1ST91. The 225 will be 13/16 inches wider and about 1 inch taller so it will affect how the trailer tracks and put added stress on the 205 side. I have included...
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• Can Trailer Tires Spin in Either Direction
  Yes, radial trailer tires can spin in either direction. They are not directional. I attached an FAQ article on trailer tires for you to check out as well.
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• Will Higher Temperatures In a Desert Affect Maximum Tire Pressure in Trailer Tires
  Regarding tire inflation, trailer tires are built to withstand a lot of abuse. Lower air pressure is more of a problem than higher air pressure. A trailer tire can handle being slightly over-inflated better than being under-inflated, especially if the trailer that the tires are on is loaded to the maximum. The rule of thumb on tire pressure change due to air temperature is 1 psi for every 10 degrees (Fahrenheit) in temperature change. In most parts of the United States the difference...
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• What Size Wheels Work with ST225/75-15 Trailer Tires
  Trailer tire size ST225/75-15 will fit on 15x6, 15x6-1/2, or 15x7 inch wheels. The most common size and what we carry is a 15x6 inch wheel. These wheels come in several different bolt patterns. The most common is either a 5 on 4-1/2 or 6 on 5-1/2. I have linked an article that shows how to measure for bolt pattern. I have also linked all of the 15x6 inch wheels for you.
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• What is the Speed Rating of Kenda ST225/75-15 Trailer Tires and are Radials Rated for Higher Speeds
  The trailer tires that we carry including # AM1ST96 are rated for up to 65 miles per hour. Bias ply tires and radials are rated the same. If anything a radial would have a higher speed rating because they track better and run cooler than bias ply tires. But it doesn't matter in this case because both types are rated for a maximum of 65 miles per hour.
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• Trailer Tire Wear on Right Side, Outside Tread Only and Trailer Pulls Hard to One Side
  If you have more of the weight in the trailer on the left side then that could explain the uneven wear. Axles have a bow or camber in the middle. When weight is in the trailer it straightens out the axle some and the tires should wear evenly. When there is not enough weight the camber causes the tires to toe in at the bottom which would lead to outside tread wear. If you do not believe this is the issue then it is possible that the suspension is worn more on the right side or it could...
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• What Does ST in Trailer Tire Size ST225/75D15 Mean
  ST on a tire size like the Loadstar ST225/75D15 Bias Trailer Tire # AM1ST96 you referenced indicates "special trailer" which means it was designed specifically for use in a trailer application. This type of tire can only be used on a trailer. For more info on trailer tires check out the help article I attached. There's more info on the different trailer tire constructions as well.
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• Blowout Damage Comparison Between Bias and Radial Tires
  Bias ply tires have the steel cords as well, they just run at a slightly different angle, but they could do the same amount of damage as they aren't guaranteed to come apart in chunks with tire failure as the commercial driver stated. Bias ply cords run at 32 degree angle and radials run at a 90 degree angle to allow the tire to flex more. I've heard of damage to trailers due to tire blowouts, but not any that were better or worse based on radial vs. bias tire use, so I don't believe...
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• What is Correct PSI Inflation Pressure for Special Trailer Tires
  All special trailer tires regardless of size should always be inflated to the maximum psi pressure rating that is noted on the tire sidewall. It is never appropriate to under- or over-inflate a trailer tire since only when inflated to their rated pressure can tires deliver their specified weight capacity. It sounds like your trailer may have had a different size, type or weight rating tire originally specified by the manufacturer and this could be why the trailer itself lists a recommended...
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• Troubleshooting Trailer Tire Tread Wear on the Outside of the Tire
  It sounds like you need to replace the tire on your trailer that has become rounded. If the shape of a tire becomes distorted or warped like you described it could fail at any moment and needs to be replaced. If what you are describing is just the tread wear then you have different problem most likely. Under inflated tires would show wear on the inside and outside treads. You should note that trailer tires should always be inflated to the max psi rating that is listed on the sidewall...
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• What Does the 117/112L Mean on a Light Truck LT Tire
  The 117/112L that you are seeing on your tire is in reference to the load range and speed rating. There is tire load index chart for light truck (LT) tires and the 117 corresponds to 2,833 lbs for single tires and the 112 corresponds to 2,469 lbs for dual tires. The L corresponds to speed rating L which has a max of 75 mph like you mentioned. Therefore, the above load range would be suitable for a tandem axle trailer with a gross vehicle weight rating (GVWR) of 8,495 lbs. If you can...
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• What Are The Alpha-Numerical Codes On ST Tires?
  No. The 117/112 is not the psi. It is the load index. The L is the speed rating of 75 mph. The load index is the rated load capacity for single and then dual tires on each side of the axle. 117=2833 lbs. The maximum psi should be listed on the tire sidewall and is also the recommended psi for the tires to operate. For instance the Loadstar ST225/75D15 Bias Trailer Tire - Load Range D # AM1ST96 is similiar and rated for 65 psi max.
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• Proper PSI for Trailer Tire
  On any trailer tire you always want to inflate the tire to the maximum cold psi, which you said on your tire was 80 psi. Doing this will give you the best performance, allowing the tire to wear more slowly and give you optimum gas mileage.
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• Best Tire Pressure to Fill a Standard Trailer Tire
  Special trailer tires should be inflated to their maximum air pressure. This value will designate the maximum load at a maximum psi. For example, if the tire is rated at 2,540 lbs maximum at 65 psi, like the # AM1ST96 you were looking at, the tire can carry 2,540 lbs of weight if the air pressure is at the maximum of 65 psi. At the maximum air pressure, the tires will perform and wear best, and have the best gas mileage. If a trailer tire is inflated to a lower air pressure than...
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• How to Determine the Date a Trailer Tire was Manufactured
  To determine the date any trailer tire was made, including the Loadstar ST225/75D15 Bias Trailer Tire # AM1ST96 you only need to find the date code. There will be a four-digit code on the sidewall of the tire and the first two numbers are the week of the year it was made and the last two will be the year. For example if you see a code that reads 2918 that means the tire was made in the 29th week of 2018. That said, tires do not wear out from age for anywhere from five to seven years...
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• Should Trailer Tires be Inflated Over Maximum psi
  No you should not inflate your trailer tires to over the maximum psi; if your tires have a max of 35 that should be what they are inflated to as going over could also cause the tire to wear in the center of the tire quicker than it should. Underinflated tires is a potential cause for your tires wearing on the outside but it might also be an issue that the weight on your trailer is not enough to straighten the axle when under load. Trailer axles have a slight bow to them that straightens...
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• Explanation for Trailer Tire Tread that is Convex Rather Than Flat
  I consulted with our resident tire expert, and we're both at a loss. Heat build-up caused by over or under inflation, overloading the tire or failing to observe the speed rating of the tire (65mph in most cases) are the typical causes of premature tire failure. When you describe the tires as being 'rounded', I'm assuming that you mean that the tread portion of the tire is convex, rather than being flat so it makes full contact with the pavement. Over-inflation usually causes this, but...
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• Difference Between P225/70R15 and P225/75R15 Tire Sizes
  A P225/70R15 is about 27 inches in diameter while a P225/75R15 is about 28 inches in diameter. They are both nearly 9 inches wide and fit a 15 inch wheel. Both of the tires you mention are passenger vehicle tires as shown by the letter P before the size. The difference between trailer and passenger tires is the flexibility of the side wall. Trailer tires are designed to withstand the downward force of a trailer load while passenger tires have a softer side wall to create a more comfortable...
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• How Do Trailer Tire Weight Capacities Work
  Tires like the part # AM1ST96 that have a 2,540 lbs at 65 psi are rated per tire. So if you had a tandem axle trailer you would multiply 2,540 by 4 to get the total trailer tire capacity that you would have. You should note that to get the full capacity of the tire it will need to be inflated to it's max psi rating.
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• Compatibility of Tire Size ST225/75R15 on Rims That Now Have Tire Size ST225/70R15
  Yes, the tire size ST225/75R15 will fit just fine on your horse trailer rims that currently have tire size ST225/70R15. The width of these two tires is the same - 225 millimeters - and so is their wheel diameter of 15-inches. The difference between them is their sidewall aspect ratio, also known as their section height. This height will be greater on the ST225/75R15. Overall tire diameter for a ST225/75R15 tire will be approximately 28.4-inches while your ST225/70R15 tires' overall...
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• Recommended Tire Pressure for ST225/75-15 Trailer Tires
  Trailer tires should be kept inflated to the maximum pressure listed on the tire sidewall, as opposed to passenger vehicle tires that will have a certain acceptable range. If a trailer tire is inflated to a lower air pressure than the recommended maximum, the amount of weight that the tire can carry will be lowered. If a heavier load is put on the trailer tire than what is recommended for that air pressure, the sidewall of the tire could heat up and cause the tire to fail. I'll link...
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• What Air Pressure Should My Trailer Tires Be Run At
  You always want to inflate your tires like the # AM1ST96 to the maximum air pressure when the tires are cold; the tires are designed to handle the additional air pressure that will build up as the tires get hotter. For every 10 degrees in temperature the tires increase, the PSI increases about 1 psi, but again, they're designed to handle the increase in pressure as your tires warm up. If your tires say 65psi, you'll want to start each day at 65psi; lower pressure can cause uneven wear and...
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