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Old 04-09-2019, 12:08 PM   #1
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Tire selection

Have a ver competitive price on Yokohama 295/75 22.5” which is a bit larger than my 275/70 22.5. Any comments pro or con? Mfg and size change?
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Old 04-09-2019, 01:16 PM   #2
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I purchased Yokohama tires 18 months ago for my coach , mostly because I required traction tires , and Yokohama was the brand available locally that offered what I required.
That aside , I'm very happy with my purchase .

On to the size change , from what I can gather from the online literature the , 295/75 is going to be 2" taller than the 275/70 the height may bring fender clearance issues on the steer tires , and although the RPM ( Revolutions Per Mile ) is only approx 7% difference your speedo may be correctable by the chassis builder .
BUT; the added load and different speed may effect trans shifting , uphill performance , and fuel economy; by requiring the trans shift to a lower gear and rev the engine higher to maintain speed on hills . ( Like a pick-up truck with 4:10 gearing compared to one with 3:90's)
Your engine , trans and rear end ratio were packaged along with the tire size, by the chassis engineers for best performance under all conditions , personally I'd be reluctant to change that.
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Old 04-10-2019, 05:10 AM   #3
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Yokohama tires have gotten very good reviews. I'd just suggest compare them to what Toyo has to offer and see how the price compares. Toyo tires have also gotten very good reviews and they've been on our Bay Star since last summer.
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Old 04-15-2019, 08:48 PM   #4
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Have you any background or info with Sumitomo tires?
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Old 04-16-2019, 02:25 PM   #5
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I had upsized the front tires on my 04 DS. Something similar to what you are planning. I had three issues:

1) the rear of the tire when turned inward touched the Jack pad, which requires sawing about 1” off the corner.
2) The front inner edge rubbed on something...too many years ago to remember what???
3) I had to adjust the Mud flap back to stop the larger tire from rubbing.

Before upsizing look closely at the spacing around each front tire. Have someone slowly turn the tires full left and right while you observe the spacing on your current tires. Then imagine the spacing with the new larger tires.

Good luck!
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Old 04-16-2019, 02:56 PM   #6
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SOB here, but recently put the Yokohama's on my Drive and Tag.
Michelins on Steer are still good.
With FMCA discount applied, the price between Michelins and Yokohama's was not close.
They come with a 7 year warranty.
Was advised to stay with the recommended, and original sized tires and not go larger.
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Old 04-20-2019, 10:28 PM   #7
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My current update on replacing tires. Ordered Yokohama tire just to find out there is a nation wide shortage. Ordered Sumitomo tires instead which my tire man said are every bit as good and at a little reduction in price. Since we live in Phoenix my tire never wear out they crack on the sides so I expect to get about 3-4 years out of a set of tires, at least that is what has happened in the past.
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Old 04-20-2019, 10:55 PM   #8
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Quote:
Originally Posted by n1104 View Post
My current update on replacing tires. Ordered Yokohama tire just to find out there is a nation wide shortage. Ordered Sumitomo tires instead which my tire man said are every bit as good and at a little reduction in price. Since we live in Phoenix my tire never wear out they crack on the sides so I expect to get about 3-4 years out of a set of tires, at least that is what has happened in the past.
Wow, how about a full set of tire covers for around $50 and a spray bottle of Aerospace 303 to protect your investment? Im planning on getting 10yrs from mine by also monitoring inflation and using leveling jacks to relieve a little pressure in storage.
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Old 04-20-2019, 11:45 PM   #9
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Actually I do use tire covers but the heat here just tears up all rubber products.
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