Good time of year to check those trailer tires. Look on the sidewall for a 4 digit WWYY code that indicates the Week and Year that the tire was made. Anything past 6 years old should be replaced. Also consider going up one load rating on your tires, from B to C or C to D. Radisl tires are an upgrade as well, and keep in mind that bigger trailers should run ST (Special Trailer) tires with strengthened sidewalls vs regular car tires.
We wrote an in depth article for Small Boats Magazine, it's a good digital read. And it's inexpensive to subscribe, a subscription is only $2.99 a month or $29.99 a year. The Subscription opens access to all 5 years of back issues. Click here for subscription info.
"It’s easy to take trailer tires for granted—they don’t log many miles and don’t usually show much wear—but they deserve more attention than a glance to see if they look like they have enough air in them. Imprinted on every tire is a lot of useful information on its size, type, load range, pressure, and date of manufacture. All trailer tires are marked with ST—Special Trailer— and they are not at all like vehicle tires. Trailer tires have strengthened sidewalls that keep the trailer from swaying in turns and allow them to carry the often very heavy combined weight of trailer and its load."
Click here for the rest of the article.
