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Old 11-28-2011, 02:58 PM   #1
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Tires for 1998 Jayco Heritage Rushmore

I am looking to replace my Tires and would like any recommendations. Are there any larger tires that will be effective i.e. 14 or 15"?
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Old 11-28-2011, 04:53 PM   #2
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Which tires do you have on the trailer now?
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Old 12-01-2011, 08:11 AM   #3
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I believe that they are 175/80R 13's
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Old 12-01-2011, 09:00 AM   #4
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Well if you go with 14 or 15" tires you of course have to change the wheels as well. There could also be clearance issues.
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Old 12-07-2011, 10:06 AM   #5
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I was informed that 205/75R14 would fit the existing 13" rims. Is that correct?
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Old 12-07-2011, 06:07 PM   #6
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Quote:
Originally Posted by finderat97 View Post
I was informed that 205/75R14 would fit the existing 13" rims. Is that correct?
One suggestion would be to obtain the highest rated 13" tires you can get, and eliminate any clearance issues or the need for new rims. Frankly I have never heard of mounting 14" tires on 13" rims and do not think it will work.
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Old 12-07-2011, 07:22 PM   #7
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I am not a tire expert, but I thought the last number referred to the interior tire diameter and had to match the rim. I don't think that works but I would double check with a real tire guy to verify.
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Old 01-10-2012, 08:17 PM   #8
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Maybe I can help and, clarify.

Finderat97- You neven really stated why you were unhappy with the tires that were on your pup. If they are worn out, well, thats life. If they've failed due to old age (6+ years), that will happen too. Now, if they've failed due to overloading (too much trailer, not enough tire), maybe a larger tire/wheel combo may be in order or at least the correct tire for the application.

As stated in earlier posts, moving up to a 14 or 15" tire/wheel combo will definately improve load carrying capacity, but clearence in the fenderwell may be an issue.

Going back your initial quandry- a trailer specific "ST" tire, in the size of ST175/80r13 in a load range C (6 ply rated) at 50 psi will give you 2600 lbs of capacity. If you go one step up to a ST185/80r13 load range C, you'll get an additional 200 lbs of capacity.

If you have "P" 175/80r13 tires, and you're having various flats/failures, thats because those tires are passenger car tires, they have soft sidewalls, are only four ply, and provide very poor handling/pulling characteristics- they aren't designed for trailers. Will they hold up your trailer? Yes. But sloppily.

I could waste pages on all the 'exceptions' and stories about car tires vs. trailer, but I won't. If you have any other questions, send me a message! I hope this steers you in the right direction.
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Old 01-14-2012, 08:48 PM   #9
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I just purchased 175/80/13's with wheels and a load range D, 1610 pound rating from etrailer.com. I haven't put them on yet but anticipate no problems the increased load carrying capacity up from 1360 to 1610 lbs might be a much easier option than increasing wheel size.
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Old 01-17-2012, 09:09 AM   #10
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Looks like you found the right product for your trailer.
Two things I can recommend when it comes to extending the life of your tires-

A. Always check to make sure they are inflated to the max pressure on the sidewall- every time- before you pull the trailer anywhere. An underinflated tire is an accident waiting to happen.

B. Protect the tires from sunlight whenever possible. Even though most tire companies' rubber compounds contain UV inhibitors, repeated exposure to sunlight will break down the UV protector and rubber both shortening the tires' useable life.
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