Need new tires

[EarlA]

I don't know the rim width but I am running 115 psi. But they are new, after a few miles I will see how they are wearing and adjust it from there.

[piper guy]

Actually- my post was directed to the person running the 245/70. I’ve never been happy with how narrow the 215 is. Looking at the 245/70, it’s a J rated tire and on the Sailun load charts, 90 psi would be more than sufficient for the axle weights I have. Besides a wider footprint, I’m thinking the ride will be much better.

[XCMARK]

Originally Posted by piper guy

Actually- my post was directed to the person running the 245/70. I’ve never been happy with how narrow the 215 is. Looking at the 245/70, it’s a J rated tire and on the Sailun load charts, 90 psi would be more than sufficient for the axle weights I have. Besides a wider footprint, I’m thinking the ride will be much better.

6.5-7" wide wheels are approved for 245/ tire, my plan is to do the same assuming I can stay under 13-6". Doing this should help take the sharp hits from concrete roads and make for a smoother ride.

[piper guy]

Height change shouldn’t be any issue. Rolling diameter difference is only about 1/2”. Have talked to a friend that is retired Goodyear tire engineer and he concurs with my thoughts. The extra 2 plys will add more strength and he sees no reason not to run 85 psi actually for the wheel weights I have.

Let me know where you find wheels if you would. I’m about 18-24 months away from doing this. Thinking seriously about spending the $$$ on a set of Alcoa.

[XCMARK]

Originally Posted by piper guy

Height change shouldn’t be any issue. Rolling diameter difference is only about 1/2”. Have talked to a friend that is retired Goodyear tire engineer and he concurs with my thoughts. The extra 2 plys will add more strength and he sees no reason not to run 85 psi actually for the wheel weights I have.

Let me know where you find wheels if you would. I’m about 18-24 months away from doing this. Thinking seriously about spending the $$$ on a set of Alcoa.

I have Alcoa wheels , I got them from Rickson wheels in MD. It took almost 3 months to get them. He does some light machining for hub size and cone nuts to the 6000lb rated wheels. They are NOT coated wheels so you will need to clean them about every few weeks to keep a polish on them. If there is a way to get the durabrite coating from the factory do it!

[Scraper]

Reviving old thread here.

Need to buy a set of 4 ST215/75R17.5H - prepping for a 1,000 mile tow and back. Likely only will be doing that every year with possibly only a few short tows intermittently during the year. Looks like the choices of name brands at twice the price of goofy brands. I’m leaning to the cheaper brands. Is Sailun S637 still the recommendation? Advice on where to buy from (I’ll have my local shop mount and balance)?

[par]

I bought a set of those a few years ago and we travel 2400 miles one way. I also needed to purchase a new set of rims because of the size difference with the Good Years. I purchased the tires at Simple Tire and they were delivered right to my site. The rims were purchased from Trailer-Wheels.com.
I purchased them since the Good Years were getting old and also undersized for my 8000 lb axle, leave it to Redwood!
I only did one trip back to Canada, over 4 years ago and have not returned to Texas, and by the looks of things may never be going back

[XCMARK]

I ran the 215 tires for 6 years and swapped those out for 235/75/17.5 tires last spring. The 235 tires are rated at 6000 pounds and the 215 where rated at 4800 lbs. Slightly less air in the 235 tires seams to ride slightly smoother. The bigger benefit was the wider tires don't put as deep or ruts in grass. Simple tire is where I have got my sets of Sailun 637 tires , good price quick ship.

The 235/75/17.5" tires are rated at 75 mph, and they are 31.6" tall. If your running 235/80/16" tires currently the those are 30.8" tall so there isn't a big difference.

https://simpletire.com/brands/sailun...2035&zip=02035



The 235/75/17.5 tires would be best on 6.5" or 7" wide wheels. keep in mind that all 17.5" tires are not bead lock style wheels and once the air is out of the tire the bead will unseat and the tire can come off the wheel very easy.

[mhs4771]

I went a step farther, went with 245/70R17.5 they are just a fraction larger in diameter than the 215/75 and just a fraction smaller than the 235/75s