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Old 04-19-2015, 03:00 PM   #15
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Originally Posted by Sweneau View Post
A little help here guys,
Can't seem to quite locate the Michellin LTX tires, you guys recommend, to fit a 15" x 6" rim - 6 hole pattern. Tire chart indicates I need 205/70R15 or 75R15. My GT is only 2770lbs. I don't want to go with the GYMs. Online search gets me to passenger tires. I'd like to purchase online and then take them to a shop for mount & balance.
Thanks!

These are the ones I'm using on my 2012 27fb Flying Cloud
http://m.tirerack.com/tires/TireDeta...TR5LTXMS2OWLXL

Accommodates rims from 6-8" wide.

You have to de-rate them 10% when used on a trailer so you actually only get 1984# per tire at 50 PSI.

Does that help?
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Old 04-20-2015, 09:37 AM   #16
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S.S.M,
Thanks for this info. I'll chase this down. This link however shows P235/75r15. Tire chart indicates 205/70r15 max. Guess i'm just going to have to call someone for clarification.
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Old 04-20-2015, 06:29 PM   #17
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Sorry - I just remembered that the ones I put on my trailer could be used on 6" rims and totally missed the size you provided. I didn't search to see if those are made any thinner....


Maybe one of the tire engineers would like to chime in with their thoughts on the appropriateness of fit?

Good luck!
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Old 04-20-2015, 06:43 PM   #18
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Originally Posted by TinTin View Post
Lynn: I'm sure the 15 inch Michelin LTXs will fit on your original 15 inch rims. There is a problem with this however, in that you will lose some load capacity if you switch from 15 inch GYM (2540 lbs) to 15 inch Michelin LTX (2150 lbs). If you upsize to 16 inch wheels and 16 inch Michelin LTX as many have done, you will retain more of your load capacity.
Now I'm confused; the Michelin website specs on the P235/75R 15 108T XL has a maximum load of 1985 @ 50 lbs. De-rating by 10% brings it to 1786, which is still sufficient for a dual axle 6000 Gross. But where does the 2150 come in?

Thanks for the help
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Old 04-20-2015, 06:59 PM   #19
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Upgrading tires from GYM to Michelin

Quote:
Originally Posted by Steamy1 View Post
Now I'm confused; the Michelin website specs on the P235/75R 15 108T XL has a maximum load of 1985 @ 50 lbs. De-rating by 10% brings it to 1786, which is still sufficient for a dual axle 6000 Gross. But where does the 2150 come in?

Thanks for the help

Hi - they start at 2150 as passenger tires - you de-rate them 10% from there to get to 1985# for use on a trailer.
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Old 04-21-2015, 06:46 AM   #20
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S.S.M,
Thanks for this info. I'll chase this down. This link however shows P235/75r15. Tire chart indicates 205/70r15 max. Guess i'm just going to have to call someone for clarification.
What chart indicates a 205/70R15 max?



Quote:
Originally Posted by Steamy1 View Post
Now I'm confused; the Michelin website specs on the P235/75R 15 108T XL has a maximum load of 1985 @ 50 lbs. De-rating by 10% brings it to 1786, which is still sufficient for a dual axle 6000 Gross. But where does the 2150 come in?

Thanks for the help
It appears the Michelin web page has an error (several, actually!). Yes, I know, but it does happen.

The actual load carrying capacity of a P235/75R15 XL is 2183# @ 41 psi - and when you divide by the 1.1 derating factor, you get 1985#.

The other possibility is that the tire is an LT235/75R15 Load Range C - in which case the load info on the website is correct (the size designation would be wrong!)
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Old 04-21-2015, 07:20 AM   #21
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The LTX are passenger car tires but work very well. They are not ST or LT tires. Peace,jim
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Old 04-21-2015, 07:25 AM   #22
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The actual load carrying capacity of a P235/75R15 XL is 2183# @ 41 psi -
It is actually 50 psi according to the sidewall. Just last week I put some of these on a family members 25' AS Safari. The trailer tows nicely at interstate speed!
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Old 04-21-2015, 10:56 AM   #23
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Okay, now i'm totally confused. This is the link that indicated 205 width maximum and 70 AR. Tyre Size for Rim Size/Width Calculator - What's the best tyre size for my rim?

Do I presume that this Michelin P235/75R15 108T XL will fit my 15" x 6" rim (6-hole) purchased from VTS?
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Old 04-21-2015, 11:38 AM   #24
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The minimum rim size for the Michelin LTX M/S2 235/75R15 XL 108T is 6" to max rim width of 8". These will fit the rim you purchased.
http://www.michelinman.com/tire-sele...ails#techspecs
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Old 04-22-2015, 06:06 AM   #25
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Originally Posted by Sweneau View Post
Okay, now i'm totally confused. This is the link that indicated 205 width maximum and 70 AR. Tyre Size for Rim Size/Width Calculator - What's the best tyre size for my rim?

Do I presume that this Michelin P235/75R15 108T XL will fit my 15" x 6" rim (6-hole) purchased from VTS?
First, whoever did that website is totally off base. Rim width is also dependent on aspect ratio - and here's how to verfiy: Compare what they get against what Tire Rack publishes. Tire Rack uses what the tire manufacturers publish - and in turn, they get it from the standards organizations, such as The Tire and Rim Association (TRA), or ETRTO (European Tyre and Rim Technical Organization)

You've already found one that doesn't work and I assure you, there are many more.

So totally ignore what they said and go with what the tire manufacturer tells you - So, Yes!, that Michelin P235/75R15 will fit on a 15X6 wheel.
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Old 04-22-2015, 06:10 AM   #26
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It is actually 50 psi according to the sidewall. ..........
Not exactly. The load table says the maximum load occurs at 41 psi, but Michelin is telling you the maximum inflation pressure is 50 psi. Some slight wording differences that changes the meaning.

As I said, there are some errors on Michelin's page.
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Old 04-22-2015, 09:22 AM   #27
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Thanks so much guys! I'll go with the Michelins then. Only question; do i inflate to 41psi?
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Old 04-22-2015, 09:50 AM   #28
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Just perusing the forums and came across this thread... thought I'd pipe-up..

I once bought tires and took them to have them mounted. The problem which developed was the (Firestones) developed sidewall cracking and in order to get them warranted... I had to pay again to have them removed, shipped, and new ones acquired and mounted.

Moral of the story: Don't take your eggs to the restaurant to have them fried.
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