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Old 07-29-2015, 02:04 PM   #1
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Tire question.

I had a sidewall failure on one of the original tires on my motorhome. It was a Goodyear RV tire 245/70 R19.5 with an F rating.The only one I could quickly find to get us back on the road was a Yokohama RY023 truck tire with a G rating. Obviously I would like to only replace the remaining 5 tires with the Yokohama. It is a BayStar 2902 on an 18000 lb. chassis. Any advice?
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Jim Hayes
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Old 07-29-2015, 02:15 PM   #2
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I went to my friendly truck tire supplier and he recommended Yokohama tires. I put on a full set and am well pleased. Check the over the road guys and see what they're running.
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Old 07-29-2015, 02:29 PM   #3
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Did you use the RY023s? I guess my question is RV tire F load rating as opposed to truck G rating.
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Old 07-29-2015, 02:32 PM   #4
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Stronger tire , load weight rating should exceed the Goodyears, check the specs for required wheel rim width and spacing for dual wheels.
Only possible downside would be harsher ride.
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Old 07-29-2015, 02:54 PM   #5
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HayesJ- Having experienced 5 sidewall failures years ago on my 1999 DSDP & investigating zipper rips in the sidewall of tires here's what I've learned:
Sidewall failures in tires are generally indicative of either under inflation pressure for the load being carried or overloading the tire beyond its rated capacity not withstanding road hazard damage.

First thing you need to do is weigh each wheel of you MH to see what loads you're dealing with & how well balanced from side to side you are when fully loaded- water, fuel & full holding tanks as well as normal passenger load. Next go to the tire Mfg. website & look up your size of tire & LR- I add 10% to each wheel loaded weight as a safety factor- look up the single & dual weight loads for your tire size & LR & see what psi air pressure it calls for. If you exceed the highest load you'll have to move up to a higher LR tire model. I'm really surprised that you originally only had LR F=12 ply tires on your MH? I wouldn't feel comfortable in any model MH with less than a LR H=16 ply tire on the steering axle. My present 2014 MADP has 365/70/22.5 (now that's a big tire my friend) load range L =24 ply tires on the steer axle- albeit it's a lot heavier MH than yours. . Hope this info. helps- Happy Trails
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Old 07-29-2015, 03:10 PM   #6
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These were the original tires that came on the coach from Newmar. They had recently been inspected when I bought it and pressure was good when I left on a 200 mile trip. I did notice that the DOT date was '08. But they had always been covered when not in use, and I had been looking replacement tires. I've only had the coach a couple of months. I'm assuming it was age related. Thanks for the info Capt.
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Old 07-29-2015, 03:27 PM   #7
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Unlikely your going to be running down the road with full fresh water, and, full holding tanks. One or the other.
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Old 07-29-2015, 07:21 PM   #8
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Quote:
Originally Posted by 96 Wideglide View Post
Unlikely your going to be running down the road with full fresh water, and, full holding tanks. One or the other.
Yeah, I agree, I thought that looked weird when I read it!
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