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Old 07-03-2015, 12:12 PM   #11
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If you are going to replace tires - no matter whether they are radials or STs - look at the Max Weight Rating for the tire at max pressure (stamped on the side). Then multiply times the number of tires. If that number equals or exceeds the GVWR of your trailer (printed on the yellow sticker on your trailer), then you will be fine. The radials would be a better tire all around - speed, balance, ride, but only if they can safely carry the load.
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Old 07-03-2015, 12:56 PM   #12
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Load range D according to the label....... Consider going to a load range E .... Spend a bit more, but worth the confidence of knowing you have better load capacity.

They make D in both 8 and 10 ply....
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Old 07-03-2015, 01:01 PM   #13
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Thanks for the replies folks ...

OK, I did some checking and the Load Rating on the Carlysle tires (here near Ottawa) is "C" Load Rated ... 1,480 lbs max load ... ST185/80R13 "LRC"

The current one's I have are "D" Load Rated ... 1,730 lbs max load ... WD H188ST 185/80D13 "D"

Guess I can't go with the radials. Will stick with finding new WD H188ST 185/80D13 "D"s
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Old 07-03-2015, 01:17 PM   #14
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"E"s ... I can't find that size tire in "E"s.
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Old 07-03-2015, 01:19 PM   #15
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your RV is rated at 3500 lbs gross if you only have a single axel you will need D load range tires But even with that in mind your current tires are slightly under the 3500 max of the RV
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Old 07-03-2015, 01:23 PM   #16
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If possible you might be able to go with 14 inch tires if you have the clearance.
You may want to check this out with a dealer


ST205/75R14 are rated for 1760 lbs at 50 psi
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Old 07-03-2015, 01:33 PM   #17
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E rated tire in a 13 inch rim may be hard to find.
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Old 07-03-2015, 02:01 PM   #18
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Quote:
Originally Posted by bedrck46 View Post
your RV is rated at 3500 lbs gross if you only have a single axel you will need D load range tires But even with that in mind your current tires are slightly under the 3500 max of the RV
Jayco subtracts the weight on the tongue in the GVWR calculation so that the tires don't need to support the whole 3500#. They deliver the trailer with as little as it needs. Check your axle limits, you'll find they don't add up to the GVWR either.
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Old 07-17-2015, 08:37 AM   #19
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I ended up buying Carlisle 8Ply LRD 185/80D13 replacement tires. MAx capacity is 1710 lbs, so I should be good for now.

On another note ... I heard a lot about Maxxis tires and how good they are from lots of posts in these forums. I checked here in Ontario Canada and had a hard time finding a local dealer. Closest one is in Brampton Ontario. In 2 weeks they're launching an eStore for trailer tire purchases ... so check it out everyone.

Maxxis Canada eStore
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Old 07-17-2015, 12:24 PM   #20
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Quote:
Originally Posted by Nathalie View Post
I ended up buying Carlisle 8Ply LRD 185/80D13 replacement tires. MAx capacity is 1710 lbs, so I should be good for now.

On another note ... I heard a lot about Maxxis tires and how good they are from lots of posts in these forums. I checked here in Ontario Canada and had a hard time finding a local dealer. Closest one is in Brampton Ontario. In 2 weeks they're launching an eStore for trailer tire purchases ... so check it out everyone.

Maxxis Canada eStore
Hopefully they actually plan to sell 13" tires on that site. LOL
Good to know all the same.

Cheers fello Ottawan
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