Upgrading trailer tires

I would spend my money on a TPMS instead. I too have over 20,000 miles on my trailer and am on my 2nd set of ST tires both made in China. The OEM tires were Duro 2100 radials and the second set I put on are Hercules Power STR. 6 years, 34 states and no blowouts.

My trailers "China Bombs " have 21,000 miles on them in 18 months , no problems . Unless you see something wrong with them I would keep running them ! I assume from the weight of your trailer that they are 205-75-14 or maybe 15 . Keep daily check on pressure and go with them .

I would doubt that Jayco or anyone else would honor the 2nd year warranty if YOU listened to your neighbor.
Therefore you have to wait one more year if that matters to you.

Heavier duty tires might mean heavier duty rims as well. You might have to add shocks. The harder ride will shake things up inside the Jayco (due to the light 3500# axles) and you will feel the harder ride in the seat of your pants inside your truck because it all gets transferred through the WD hitch to the frame of the truck.

Tires have problems when 'overloaded or overheated' due to low air pressure or excessive weight . I have been running all kinds of tire brands on my 4 trailers that I have on the road right now with no issues and one of them is a Jayco at about 6000#.
**** Weigh your rig at a certified scale.

Balance your load to spread the weight evenly over ALL FOUR tires and BOTH axles. Uneven loading causes more weight to be transferred to two of the tires causing premature problems.

Even if you install the well liked MAXXIS M8008 tires , you can have problems if you do not load them and air them properly.

RIMS also have PSI ratings ,you have to match the new tires size to the PSI rating of the OEM rims.
Ex: if you have ST 205/15" tires on your Jayco, you have a 50# tire that fits a 50# rim (this combo is common on 3500# axles).
If you buy a larger ST225/15" with a higher weight rating, you will then have a 65# tire and a 50# rim. NOT a good idea and its a waste of money to run those 65# tires at a lower pressure of 50# because you will have a lesser load capacity than the originally inflated ST205's at 50#. (there is a formula for that )
I would NOT use "P" tires on a TT because I found I experience sidewall flexing (you feel it more on a shorter wheelbase truck) and I do not know of any LT tires that are made in 14" or 15" sizes. Therefore , you do not have many options regarding tires unless you swap the rims to match the new size tires. THEN....you must measure the width and diameter to make they will fit under your particular model Jayco without rubbing on anything.

Forget the 5000, what is the GVWR?

1000s and 1000s of trailers never have a blow out. Just because some do that doesn't mean you will. Its easy to get caught up in all the ST fear mongering.
Sure there are some really bad ones made. But it's the same with anything.
I've put over 20,000 miles on two sets of ST tires. Just because someone else had a blowout doesn't mean I will.
My questions are
How much do you tow?
What size tires do you have?
What brand?
What's the loaded weight of the trailer?
And what's the max load for the ST tires?

If you only tow a couple 1000 miles a year or less and your tires aren't maxed out, then if it were me I'd run them.
If you're maxed out on the tires, then upgrade to a higher rated tire.

If they're some weird brand that you have trouble saying then I'd up grade.

If they're a known decent brand and you meet the weight and miles limits then I'd keep em till they are used up somewhat.

The only sure fire way you're going to avoid blowouts is to upgrade to LT tires. But since you trailer is only 5000lbs loaded then it's highly doubtful that you'll find LT tires that will fit.

One more thing. Keep your speed under 65mph.

Fnp5150 wrote:
I have a 1 year old Jayco TT that weighs a little over 5000lbs loaded. A neighbor recommended I replace the tires that came on it with heavier duty tires to decrease the risk of a blow-out. Is this needed? If it's a common problem, then for sake of safety I probably will. Just hate replacing practically new tires.

What size and ply rating do you have? I've had good luck with E rated tires.

It's unfortunately "common" that RV manufacturers put on HORRIBLE tires from the factory. When a big 80-85 series tire blows, it can cause pretty substantial damage.

Part of it seems to be due to tires that are running close to capacity limits already and then they age (probably dropping max capacity by 10% a year).

Tell us the following:
Size and model of the tires
Give us the DOT code on the side

We'll be able to provide further advice.

I have a 2015 Keystone 5th wheel. It weighs about 13k unloaded on two axles. I replaced the factory tires after driving off the lot... Provide tire info before you go do it though, it may be unnecessary.

As mentioned, check the manufacture date. Then check to see what weight rating your tires are, and if needed to weigh your rig at a scale to find a more precise loaded weight. You will also need to check your rims for a psi or weight rating stamped on the inside of the rim, possibly on a spoke depending on the rim style.

I plan on replacing our stock tires with a step up to a LR E tire from the LR D for that reason, a little more "reserve capacity".

First, check the DOT number to see when the tires were made. Then go to www.michelinrvtires.com to read what they state about RV tires.