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Old 10-16-2018, 07:11 PM   #1
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Class A Radial Tires and Bias Tires

I'm tired of getting bet up with the Bias tires on my A class, Has anyone put Radial tires on your Class A, I have 245/70R19.5 G Please help


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Old 10-16-2018, 07:36 PM   #2
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245/70R19.5 G If this is the size that is molded into your sidewall then you have radial tires. the "R" in the size indicates it is radial construction. It would have a "B" if they were bias ply.
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Old 10-16-2018, 07:44 PM   #3
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that is what it shows on the spec sheet for the tires

I have road master RM170 tires on it now
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Old 10-16-2018, 09:43 PM   #4
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In my experience the radials will ride and handle better, give better gas mileage, and last longer. Make sure you change all the tires when you upgrade, do not mix types.
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Old 10-16-2018, 09:56 PM   #5
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Ryan.....have you weighed your coach and adjusted the tire pressure accordingly? If you're running max pressure, it's probably part of your rough ride. Your tires have a corresponding on line chart for inflation pressure. You need to weigh your coach, four corner weights (each tire) is preferred, but axle weight is good enough. As an example, if your front axle weighs 8600 pounds, you divide by two and look up how much air pressure your tire should be inflated to, to support 4300 pounds.
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Old 10-17-2018, 11:11 AM   #6
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I would be shocked if you have bias ply tires on that coach; they definitely are NOT bias ply if they are what you say (245/70R19.5). That is a radial tire. I don't even know of a manufacturer making a bias ply in that size.


Let's back up and discuss what sort of problem you are having that leads you to think the tires are at fault. We can probably help you solve that without buying new tires.
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Old 10-18-2018, 12:28 AM   #7
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I did a Google search and could not find bias ply tires in that size. I bet if you look on your tire it will have "Radial Ply Construction" on it.


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