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If your day involves hauling equipment to a jobsite or keeping customer vehicles road-ready, trailers are probably part of your everyday routine. From landscapers towing mowers to busy repair shops working on trucks that pull campers, trailers play a key role in keeping work (and life) moving.

But trailer tires often go unnoticed until they fail. And when they do, you could be facing damaged cargo, missed appointments or worse.

That’s why it pays to get ahead of any potential problems.

With a few quick checks and the right replacements, you can avoid costly surprises and keep your crew and your customers moving. This article walks through how to assess, replace and recommend the right trailer tires before problems hit the road.

Trailer Tire Safety Matters More Than You Might Think.

When most people think about tire safety, they focus on what’s under the vehicle, not what’s behind it. But trailer tires carry just as much responsibility. Whether you’re hauling mowers and equipment to a jobsite or your customer’s cargo to a campsite, a tire failure can bring everything to a grinding halt.

Trailer tires are built differently than passenger or light truck tires. They’re designed to carry heavier loads, sit idle for longer stretches and take more sidewall stress when turning or backing up. That combo means they’re more prone to aging out, developing cracks, or showing wear that doesn’t always look dangerous to the eye.

Most trailer blowouts are preventable; you just have to know what to look for. A quick inspection and timely replacement of aging or underperforming tires can go a long way in keeping your crew safe and your schedule on track.

What Are the Signs of a Failing Trailer Tire?

Not sure if a set of trailer tires are still good to go? Here’s what to check before you or your customers hit the road.

1. Cracks or Dry Rot

If you see spiderweb cracks along the sidewall or tread, that’s dry rot: a sign the rubber is breaking down due to age, sun exposure or inactivity. These cracks weaken the structural integrity of the tire, which makes it more prone to blowouts even if the tread still looks decent. If you spot them, a replacement is non-negotiable for safety reasons.

2. Low Tread Depth or Uneven Wear

Trailer tires don’t wear the same way as passenger or light truck tires, but tread still matters. Shallow tread can affect traction, especially in wet conditions, and uneven wear patterns could point to other issues, like over- or under-inflation or axle misalignment. If the center is worn but the shoulders are fine or vice versa, it’s time to dig deeper into what’s causing the issue (and recommend a tire replacement while you’re at it).

3. Bulges, Bubbles or Flat Spots

Visible deformities like bubbles in the sidewall or tread are serious red flags. A bubble is often caused by internal damage, like broken belts, and can fail suddenly under load or speed. Flat spots from sitting too long can also compromise tire balance and lead to premature wear. If you or your customer spot these, don’t wait to swap the tire out.

4. Tire Age

Looks can be deceiving. Even a trailer tire that’s barely been used can be too old to trust. Most manufacturers recommend replacing trailer tires every five to six years, regardless of mileage. You can check the DOT code on the tire sidewall; the last four digits indicate the week and year it was made (for example, “2319” = 23rd week of 2019). If that tire is pushing the six-year mark, it’s time for a new set.

5. Handling or Ride Issues

Tire issues don’t always show up in the rubber. If your trailer is swaying more than usual, vibrating, or bouncing excessively, tires could be the root cause. Taking five extra minutes to run through this checklist can save you from serious downtime later. And if you’re running a shop, walking your customers through these same signs keeps them safe and builds trust by showing them you’ve got their back. It’s a win-win for everyone.

How Do You Choose the Best Replacement Trailer Tires?

When it’s time to replace a trailer tire, grabbing the cheapest option on the rack might be tempting, especially if you’re buying in bulk. But when safety and uptime are on the line, quality matters.

Here are a few key features to look for when recommending or choosing a trailer tire:

Load Rating That Matches the Job

Every trailer tire comes with a load rating, or load range, that tells you how much weight it can safely carry. For landscape crews hauling mowers and equipment or shops serving customers with heavy trailers, underestimating the load can lead to blowouts and uneven wear. Make sure the replacement tire matches or exceeds the trailer’s gross vehicle weight rating (GVWR).

Special Trailer (ST) vs. Light Truck (LT) Tires

Special Trailer (ST) tires are specifically engineered for trailer use, equipped with stiffer sidewalls to handle sway, backing, and heavy vertical loads. Light Truck (LT) tires might look similar, but they’re not designed for the same duty cycle. ST tires are the right call for most trailers, and a key differentiator to call out when talking with customers.

Durability for the Long Haul

Look for tires built with reinforced sidewalls, heat-resistant compounds and steel-belted construction. These features help extend tire life and reduce the chances of failure under load or in hot weather, which is especially important for summer hauling when pavement temps skyrocket.

Tread That’s Built for Stability, Not Speed

Trailer tires don’t need aggressive tread like truck tires. What they need is stability. Shallower, straight-ribbed tread patterns are ideal because they minimize sway and offer better control when towing.

DOT and Warranty Info

Always double-check the tire’s manufacture date and look for brands with a solid track record and a clear warranty. A good warranty can help your shop or crew protect the investment and adds another layer of confidence when recommending a tire to your customers.

Need a Hand Choosing the Right Trailer Tires? RHD Tire Is Here for You.

Tire specs can get complicated fast, especially when you're juggling different trailer types, load ratings and seasonal demands. But you don’t have to figure it out alone. Whether you're stocking up for your fleet or helping customers gear up for the busy season, your RHD rep is here to make it easy.

Let’s find the right trailer tires for the job. Reach out today for expert recommendations and in-stock options that keep your crew and your business moving forward.