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Old 04-08-2016, 02:01 PM   #1
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Any tires that would be LT for same weight?

I currently have Ridgway Sport LT 235/80R16 Load Range E tires on our 5th Wheel. The Max load is 3,520LBS @ 80PSI.
Talking with the tire shop the closest they have is 245/75R16 LT tires. He said they would be the same size but are only rated 3,042LBS. There doesn't seem to be anything in that sire in another Load Range with the same weight capacity.

What other choices would I have or do I need to stick with ST tires? The ST tires are rated @65MPH from what I understand. We have stretches of freeway @70MPH and it would be nice for when those conditions are right.
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Old 04-08-2016, 02:09 PM   #2
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Check out Sailun S637. They are LR G and well built. Appear to be identical to their LT version although some are marked ST. Many appear to like them and have had great luck with them. LT235/85R16 LRG 14 Ply Sailun S637 Radial Trailer Tire
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Old 04-08-2016, 02:50 PM   #3
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LT tires are always rated slightly less than STs, but there's no speed limit at 60 or 65 mph. STs are also very prone to not lasting more than 5 years at any serious load. With all the horror stories about Chinabombs, I replaced ours with Firestone Transforce LTs a few months after we bought the Montana. In about 30k miles & 3 years, we picked up one nail at a country gas station, but have otherwise had absolutely no problems. Our Montana max is 15.4k and I know I've had it over that once or twice.
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Old 04-08-2016, 03:29 PM   #4
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Thanks, I'll double check the weight rating on my trailer to make sure the new tires are above it.

I don't plan on changing them out this summer however.
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Old 04-08-2016, 03:42 PM   #5
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You need to find out what your axle rating is. But with the weight of your fiver, it is very unlikely that you have 7k lb axles. Therefore you don't need tires rated for more than the axle rating. You more likely have 6k or 5.2k axles and in either case, LT tires with a 3042 lb capacity are certainly adequate and superior to the OEM ST tires (my opinion). My unit has a similar dry weight, axles are 5.2k and I made the switch to LTs about 4 yrs ago.
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Old 04-17-2016, 09:00 AM   #6
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Sailun S637 235-80R-16 tires are now marked ST but are the exact same tires as the former LT marked S637. Now marked ST's to avoid the tariff on imported LT's.
These are 110 lb pressure tires, so you need and upgraded rim unless yours are marked on the back side for 110. We bit the bullet and got these Sailuns and new rims. Couldn't trust the 80psi Raniers from the factory. Pulls much smoother!
Got a package deal, rims, tires, mounted and balanced fedex to our front door.
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Old 04-17-2016, 09:32 AM   #7
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I bought Michelin XPS Ribs after a two year old chinabomb sidewall blew out.

Beware if you upgrade your tires the new tires will by much heavier. So if installing them yourself muscle up. I took off my chinabomb wheels and tired off my rig. Threw them in the bed of the truck and dropped off at the tire shop. 2 hours later the tire shop calls and tells me the new tires are ready. Their shop ape put the wheels/tires into the bed. He mentioned these tires a heavier than the old tires.

Well, when I got back to my trailer to install the wheels and new tires I knew I was going to have an issue. The 1st wheel/tire was ok as I was fresh. Remember - I had to tighten 8 lugnuts. The 2nd wheel/tire I could not get lined up. So after 4 tries I got it lined up and on...whew. The 8 lugnuts tightened. So I was really out of energy but the time I got to the 4th tire. I actually took a break before I tightened the lugnuts.

So bottomline - chinabombs easy to work with. Better replacement tires not so easy to work with. Muscle Up!!!

Good luck.
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Old 04-17-2016, 09:50 AM   #8
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tuffr2,
Understand the difficulty in lining up the lugs--you should try it with my 10-lug 450 wheels...there are some tricks to doing this without working yourself to death--use of a tire tool under the tire to leverage it onto the lugs really helps with the lifting.
If you ever have the opportunity to watch a tire repair shop do this, you will catch on quickly.
And, a cordless impact tool is a miracle to work with.
Luckily, you shouldn't have to face this for a long time now.
Joe
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Old 04-17-2016, 12:54 PM   #9
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wingnut - I thought I would just 'slap on' the new tires. No big deal. But like I explained I was wrong.

Thanks for the info on using leverage but next time I will know what to expect so I will use leverage plus ask for help...lol.

Wow...you installed 19.5" tires on your 10lug F-450. You da man !!!
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Old 04-17-2016, 01:17 PM   #10
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Quote:
Originally Posted by unitlink View Post

Talking with the tire shop the closest they have is 245/75R16 LT tires. He said they would be the same size but are only rated 3,042LBS.
All LT245/75R16E tires (any LT brand) have a minimum rim width requirement of 6.5"

Michelin info...http://www.michelinman.com/US/en/hel...res.html#tab-4
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Old 04-17-2016, 02:00 PM   #11
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tuffr,
No choice in the matter--that's what they come with. Thankfully, they last a lonnng time.
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