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Old 09-13-2016, 12:43 PM   #1
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Tire Size

I have a 2001 Monaco Executive, has anyone successfully put larger tires 315x80Rx22.5 on their coach? Manufacturer recommendation is 295x80Rx22.5. I previously owned 2001 Monaco Dynasty that had 305x80Rx22.5 Goodyear G70's and they rode great. I purchased new tires and went with the manufactures recommended 295's and the ride was not nearly as good. My present coach needs new tires and I would like to go larger, if possible?

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Old 09-13-2016, 01:16 PM   #2
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Lots of issues can affect ride more than tire size; specifically tire air pressure and also even tire composition (number of plys) - and goodyears are not known for the smooth ride. You might not have clearance for a larger tire. And you also run into issues like speedometer error. Not to mention the cost of more rubber. I would do a air pressure check first. If you are at the load limits of the current tire then you should upsize, IMO not otherwise.

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Old 09-13-2016, 06:20 PM   #3
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You will just have to measure the wheel wells on your particular coach. Also consider the dual spacing on the rear axles, since the larger tires may rub against each other if the offset isn't sufficient.

However, I would not assume larger tires will make it ride any better. You might be able to run at a bit lower pressure (psi), but that doesn't necessarily improve things. There are numerous reasons why one coach might ride differently than another, si the difference in tire size is not an automatic answer.
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Old 09-13-2016, 06:21 PM   #4
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Tire Size

As long as the tires physically clear the wheel wells you're OK. If your coach is one with a 60-degree wheel cut, make sure the steer tires clear with the wheels turned. You should also check the clearances with the air dumped.

You'll have to check the inflation/load chart for the new tires to confirm inflation pressures. The larger tires may run a few pounds lower than a smaller tire at the same weight.
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