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Trailer Tire FAQs
Unlike tires on your car, trailer tires have strengthened sidewalls to handle the weight of the trailerload, especially when rounding corners.
You can tell if a tire is made especially for trailer use if it has “ST” or “Trailer use only” written on the sidewall of the tire.
Check your tire pressure regularly to ensure you are maintaining the recommended pressure for your trailer tires. Underinflated tires cause your tires to be overworked, which can be unsafe or cause damage. Overinflated tires cause greater tread wear and loss of traction. Air pressure increases with heat, so be sure to measure it before driving, while the tires are still cold.
When storing your trailer, there's a few things you can do to help keep your tires in good condition while you wait to hit the road again. First off, we suggest you keep your tires out of the sun to avoid damage from UV rays. If you can't put it in a garage, tire covers are the best way to provide protection. You should park your trailer on a level surface, and if possible move your trailer occasionally so that the weight of the vehicle isn't putting pressure on the same part of your tire for an extended period of time. To keep weight at a minimum, make sure your unload any excess items from inside the trailer itself. Avoid leaving the tires in direct long-term contact with hot surfaces like asphalt by putting a barrier under them, or using blocks to minimize contact.
For more advice on how to keep your tires in tip top shape, contact your local Fountain Tire.
Whether you're getting a quote online or calling one of our stores, you will need to know the width, ratio, and rim size for the trailer tire. These specifications can be found on the sidewall of your tire. For example, if your tire sidewall read ST175/80R13, the width is 175mm, the ratio is 80% and the rim diameter is 13". Sometimes older tires will have letter sizing like A78-13; if this is the case, please contact your nearest fountain tire store.
*Include an image of a tire sidewall that includes the tire size.