Tire Dilemma...Carlisle or Sailun

[09 harley]

Michelin Ribs.

[Dogpatch]

Based on the information provided directly by Sailun and my tire dealer, I have bought and installed the Sailun's.

The S637 is designed to operate at various pressures based on load, thus the variable inflation chart. I don't need maximum allowable pressure and I was assured running them at a lower pressure will not overheat or affect them adversely in any way.
I read somewhere that these tires were designed as an LT but downgraded to an ST to meet the requirements for trailer application. They are a beefy tire with thicker side walls than any other tire I've looked at.
I'm confident in my choice of tire and the pressures I will be operating them at. I have an infrared heat gun I will be checking them with to monitor.

[shelbytexan]

Great choice. My first set of sailuns were LT tires. I bought another tire from them earlier this year and it said ST on it . I couldn't see any difference in tires except the LT's were 3750 pound rated and the ST tire was 4080 pound rated. Both have the 75 mph speed rating. I'm surprised your wheels aren't 3750 pound rated. Mine are stenciled 3750 lb on the back and i have 7,000 pound axles on 8 lug wheels. Have you looked real good at the back of the wheels? Your 5th wheel could certainly use the heavier tires you bought. Good luck.

[FastEagle]

Originally Posted by 09 harley

Michelin Ribs.

Help Me Choose The Right Tire | How to choose tires | Michelin US

[Dogpatch]

Originally Posted by shelbytexan

Great choice. My first set of sailuns were LT tires. I bought another tire from them earlier this year and it said ST on it . I couldn't see any difference in tires except the LT's were 3750 pound rated and the ST tire was 4080 pound rated. Both have the 75 mph speed rating. I'm surprised your wheels aren't 3750 pound rated. Mine are stenciled 3750 lb on the back and i have 7,000 pound axles on 8 lug wheels. Have you looked real good at the back of the wheels? Your 5th wheel could certainly use the heavier tires you bought. Good luck.

As for my Cardinal 5th Wheel, GVWR is 15915 lbs. Assuming I add my loaded dual axle weight of 12544 lbs and my loaded pin weight of 2794 lbs for a total loaded 5th wheel weight of 15293 lbs and subtract that from my trailer GVWR of 15915 lbs, I'm under by 622 lbs. As I only have my rear axles weighed in total, I can only assume if I divide by 4, I'm at 3136 lbs per wheel. According to Sailuns load capacity chart for the ST S637, I'd be good for 3640 lbs. at 80 psi.
I have the 8 lug wheels and am pretty sure I have the 7000 lb axles.

I have one wheel and new tire mounted and left to put on. I'm going to have a closer look at the back before I do.

I had to wait for some new lugs. I learned a valuable lesson! Don't use a 12 pt. socket with an impact wrench on the cheap chrome covered lug nuts. I rounded them off and had a hell of a time. The new lugs I have now are chromed solid ones. I also bought a 6 pt. impact socket. Sheesh! Some times you have to learn the hard way!

[Barlow46]

Trying to keep up with this thread.... so the Dealer mounted and balanced your new tires on the existing rims and you are putting them on yourself and rounded off the cone nut with an impact wrench?

[Dogpatch]

Originally Posted by Barlow46

Trying to keep up with this thread.... so the Dealer mounted and balanced your new tires on the existing rims and you are putting them on yourself and rounded off the cone nut with an impact wrench?

Yup......it's a long story.....

Well......Here's the readers digest version.

I work, so getting my 5th wheel to the tire dealer is a pain in the a--. Have to air up truck tires and air bags take it down there during working hours, have to pick it up during working hours, drive it home, back it up a 12% grade driveway about a block without a rear camera around a brick lamp post while not falling off a rock retaining wall and into my side yard without backing into another rock retaining wall at the end of the parking spot.

Somehow, taking the wheels to them two at a time seemed more simple.

[shelbytexan]

I seemed to forgot you are from Canada so why am i talking about heat lol. You certainly made a good choice and 80 psi should be fine. With your 8 lug wheels and your gvw over 15,000 lbs. i feel certain you have 7,000 lb axles. All i have seen on 6 lug wheels is 6,000 lb axles or 5200 lb axles. I bought a milwaukee 1/2'' drive electric impact for my rv so if i do have a flat then it would be much easier to break the lugs. It has a 700 lb reverse for the hardest nuts. This is as powerful as my ingersolran air impact. Don't forget to torque your wheels after 50 and 100 miles. If you have 9/16 lugs then the recomendation is 120 to 130 lbs and 1/2 '' lugs i believe it's 100 lbs. Safe Travels.

[Batten54]

I did a search for Sailun tires and came up with this old thread. All 7 pages have been quite informative and entertaining! Wonder if the OP came south for the winter or if it's parked in Canada...under snow.

My rig is listed below and I'm thinking about better tires before our summer trip of about 6000-6500 miles. it sits on stock wheels and tires now. Trailer King ST225/75R15D. I could up it to 16" wheels if I can't find good tires in stock size. Want better tires without having to sell a grandkid to pay for them!
WT is 12,270 empty and I have pulled it just over 4,500 miles in 5 months.

What is everyone running now, and how do you like them?

[drfife]

If 15" wheels, get Maxxis M8008 tires. If you change to 16" you'll have more options.

[Dogpatch]

Originally Posted by Batten54

I did a search for Sailun tires and came up with this old thread. All 7 pages have been quite informative and entertaining! Wonder if the OP came south for the winter or if it's parked in Canada...under snow.

My rig is listed below and I'm thinking about better tires before our summer trip of about 6000-6500 miles. it sits on stock wheels and tires now. Trailer King ST225/75R15D. I could up it to 16" wheels if I can't find good tires in stock size. Want better tires without having to sell a grandkid to pay for them!
WT is 12,270 empty and I have pulled it just over 4,500 miles in 5 months.

What is everyone running now, and how do you like them?

I never went south. My 5er sits in the snow.

The End.

[JIMNLIN]

I could up it to 16" wheels if I can't find good tires in stock size. Want better tires without having to sell a grandkid to pay for them!
WT is 12,270 empty and I have pulled it just over 4,500 miles in 5 months.

A 12xxx lb dry weight trailer with ST225/75-15 D tires ?? Must be a triaxle trailer with 5200 lb axles ??..

edit;
I just looked at a Sprinter 298 FWRLS.
It has a 12270 GVWR
2540 lb CCC
9730 shipping
with ST225/75-15 D tires.

If your going with a 16" size the Bridgestone R-250 LT245/75-16 E at 3042 lb will give you 12168 lb capacity. This tire is a commercial grade all steel ply carcass and is tops for trailer service on 5200 -6000 lb axles.

I use the BFG Commercial and Cooper HT-3 commercial class tire on my 11200 lb 5th wheel trailer with 5200 lb axles in a LT215/85-16 E at 2680 lb capacity.

You sure don't need G load tire on that size trailer.

[Captn John]

I ran Carlisle on my last and current 5er. Those were/are 16". Previous set 10 ply at 3640 at 80 PSI. Current 12 ply at 3960 at 95 PSI. Carlisle has 15" 6, 8, and 10 ply. Forget 6 ply, 8 ply rated 2540 at 65 ply at 2830 at 80 psi.
A good read ~~
During a visit to China in April 2015, Van Ormer saw many new lines of ST products, but says he is aware of only one manufacturer that has “truly changed” the technology of the ST tires. That manufacturer is Carlstar Group LLC, formerly CTP Transportation Products and before that, Carlisle Transportation Products. “With the RH (radial) and LH (bias) trailer tires, they beefed up the bead and sidewall packages so that few others can compete quality-wise with them,” Van Ormer says.



http://www.moderntiredealer.com/article/312514/st-tires-all-steel-radial-construction-is-meeting-the-demand-for-more-carrying-capacity

[Batten54]

Originally Posted by drfife

If 15" wheels, get Maxxis M8008 tires. If you change to 16" you'll have more options.

I've heard good things about Maxxis M8008s. I'm thinking that's the go to for 15" rims.