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Old 06-17-2015, 10:40 AM   #1
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Tires on X17Z Jayco Ultra FeatherLite wearing out

Hi, I've attached 2 photos of one of my tires that was wearing wierdly. I took it off last fall, so it has been on since we bought it in 2011. I'd say it had about ... 7,500-8,500 kms on it.

I took the 2nd tire off today and very similar wear patterns. We don't add much weight inside, other than a BBQ, tools, food, rug, bedding ... all the usual. No modifications whatsoever.

Anyone have any idea why this wear so quickly, or is this normal ?

The tires are ST185/80D13.

Now, the spare tire on there seems to be starting the same wear pattern. It has about 2,000 kms.
Attached Thumbnails
Tire inside wear.jpg   Tire outside wear.jpg  
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Old 06-17-2015, 10:48 AM   #2
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It's possible the axle is out of alignment. I can't tell clearly from the photos, is the wear on both inside and outside edges? If it is I'm thinking you run too low of pressure. What PSI do you fill them at? They should 50psi in when towing.
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Old 06-17-2015, 10:56 AM   #3
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The wear is on both the inside and outside. This is the exact same for the 2nd tire. God I hope it is not an axle issue.

I will post when I have a few more km's ... doing about 2,000 end of July. Will monitor.

Thanks ...
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Old 06-17-2015, 11:38 AM   #4
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It could be a few different things that causes that issue. One of the items, is the outsides is worn and the inside is not, makes me suspect low tire pressure. Another item to consider is turning. Single axle tires typically do not scrub as badly as multi axle trailers. Do you make a lot of sharp turns with the trailer, such as pulling out or backing into your driveway? I do, and because of this I have one tire that has a lot more wear then the others.

We have a tire distributor near my place and I buy my tires and batteries from their city desk (much cheaper), on the wall they have a chart that shows tire conditions and explains what typically causes the wear. Might be able to do some googling and find a similar chart for reference. Here is a link to one I found.

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Old 06-17-2015, 11:41 AM   #5
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I'm inclined to think it's not an axle issue based on the wear pattern. You still need to answer the question about what PSI do you run your tires at?
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Old 06-17-2015, 11:58 AM   #6
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Thanks for the info Jagiven. I'll check tonight when I bring the warn tires to my local trailer store (hopefully they have a chart).

DocBrown ... I'd assume the psi is set correctly, but I won't know until I check at home tonight.
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Old 06-17-2015, 01:05 PM   #7
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Well, trailer tires tend to lose air even over a couple of weeks because they are just sitting. Do you check them before each trip? That's when you need to know how much air. The fact that you aren't sure tells me that you have been running them low and that's what's causing the excessive wear.
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Old 06-17-2015, 01:27 PM   #8
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You are probably correct DocBrown ... I sure hope so. I went out at lunch and bought a GOOD TP Monitor ... something like yours and not cheap (noticed the posting you did in another thread). As well as a small compressor.

I have to honestly say that my testing of the tires in the past was a "quick look" and that was it. Now that I see the deterioration in them ... no more neglecting what is keeping my trailer safely on the road.
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Old 06-17-2015, 03:37 PM   #9
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It looks like low tire pressure. Last week I tried to get the attention of a man towing a single axle camper because the driver side tire was very low on air. He was speeding and I had to give up the chase and just watch him go out of my sight. I hope he made it ok.

check your tires before towing.
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Old 06-17-2015, 07:33 PM   #10
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I'm pretty stupid. The one tire just starting to show wear was 38 PSI. The spare I just put on was at 32 PSI ... all cold. I will certainly be more careful from now on.

DocBrown ... you say it should be 50 PSI. The tire, and the info on the side of the trailer shows that it should be 65 PSi ???
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