New tires on old trailer

[ThirdMan]

We just bought a used two horse strait in (title says 1974) with two axles. This is my first trailer, but my wife has hauled horses in the past. The previous owner has replaced the floor, lights, sanded and painted it. They got a third horse and needed to upgrade. The tires need to be replaced as the sidewalls are showing cracking and the spare is blown out. The current tires are P215/75R15. Reading around I should be putting ST tires on it, but I am not sure which size (as 215/75R15 is not a a standard size in ST). Should I be putting on ST225/75R/15? I was thinking of just heading over to a tire place or Walmart and buying a set at $50 a tire for them to put on.

 

[bcp]

I seem to read about many people on TBN replacing ST tires with LT.

Bruce

 

[halfdawg]

I seem to read about many people on TBN replacing ST tires with LT.

Bruce

I'm not sure what options there are in 15" Lt with a decent load rating. I ran into this on my toyhauler and wound up getting load range E trailer tires for about $100 each.

 

[TMGT]

If you have the clearance the 225 will work, otherwise you can go down to a 205. I really like the Gladiator QR25 tires, just put a set on my equipment trailer and have another set on my dump trailer. Really impressed with them, especially for the money. I got mine off ebay.

They have the st225/75r15 in C through E range.

 

[Redlands Okie]

Regardless of which you buy look at the load rating on the side of the tire. Add up the weight of your trailor, horses, saddles gear, water, and other cargo and then buy a heavier duty tire. Tire issues hauling some boxes or boards is one thing. Tire issues loaded with horses is a major issue.

Load range E is about all I buy anymore. Less side wall issues and resulting trailor ride issues.

With 7 trailors, livestock, goosenecks, utility, box, and a little but heavy welding trailor I have learned its cheaper and safer to buy a higher load rating tire. Horse trailors are subject to hot weather and pavement, gravel roads, trail access paths, pastures and other conditions that many trailors never see.

 

[ededic]

With more than one axle light truck tires don’t have the sidewall strength to allow turning with a full load.

My life has been changed since I learned why there are tires specifically for trailers.

Growing up I understood that trailers are where old truck tires get a new life and go to die. Still trying to convince my father otherwise.

 

[Gunny]

I'd definitely go with an ST tire, as mentioned, LT tires are too stiff in the sidewalls to allow for a tight turn. There's been a lot of good reviews in the Goodyear Endurance with a 2830 load rating.

That's the tire I plan on putting on my 5th wheel camper next year

 

[ThirdMan]

Thanks for the suggestions about ST tires. Looking at load ratings 4 tires on a small two horse will easily be sufficient at D or E. Thank you for the brand suggestions, those are in the price I was budgeting for.

 

[TMGT]

Less then $300 shipped for a set of 4 E load

Gladiator Qr25-ts Trailer - St225/75r15 Tires 75r 15 2257515 | eBay

 

[Redlands Okie]

With more than one axle light truck tires don’t have the sidewall strength to allow turning with a full load.

My life has been changed since I learned why there are tires specifically for trailers.

Growing up I understood that trailers are where old truck tires get a new life and go to die. Still trying to convince my father otherwise.

Lol. Pretty much the same here.