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Old 06-19-2015, 06:21 PM   #1
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Tires for front

As stated in my signature, I have a 2010 Thor Hurricane. I went over today and did my monthly fire up of systems and everything is working great. I have read some threads recently concerning tires, here on this forum, and did a quick look at the tires. I noted some small cracking on the sidewall of the right front tire. I assume that the tire is at least 5 years old, it being a 2010 model coach. I am thinking about replacing the two front tires before I take her out again, just for safeties sake. The tires are 245R70/19.5 in size. I was looking for the tire manufacture date but could not find it. All the tires on the coach are currently Goodyear G670 tires. Looking for some advice. First, I assume that sidewall cracking is extremely bad news, correct? Would appreciate some advice on brands, and what I can expect to pay per tire to replace them. I have a TPMS installed on the coach.
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Old 06-19-2015, 08:26 PM   #2
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Depends on the size and location of the cracks whether they must be replaced.
Tire Replacement Guidelines - Goodyear RV
In addition, tire life is affected by inflation pressure.
Goodyear says:
"Tire pressure should never be reduced below the vehicle manufacturer's recommended levels to support load conditions in order to improve the ride quality of a vehicle. The difference in ride quality is not significant. When minimum inflation pressure requirements are not met, tire durability and optimum operation can be affected."
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Old 06-20-2015, 11:52 AM   #3
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Sidewall cracking is not necessarily bad news. Some brands, e.g. Michelin, are notorious for it. Generally, cracks less than 1/32nd inch deep are no worry, 1/32nd-2/32nd is suspect and should be checked by a tire professional, and 3/32nds is bad news. That's from the Michelin Tire Guide. Good year uses a similar guideline.

Both Micelin and GY make your size, but they are pricey. I would look at lesser known but still well-recognized brands such as Cooper, Firestone, Dayton (a Bridgestone division), Hankook (a Koren manufacturer with a good worldwide rep), or Toyo. Probably 1/3 less in price and quality every bit as good.
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Old 06-20-2015, 12:09 PM   #4
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Just had my front 2 G670's replaced yesterday with 2 new Hankook AH-12's installed, $480/tire out the door.
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Old 06-20-2015, 12:35 PM   #5
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While we have 22.5" tire, we recently replace the front tires on our last trip to the 'lower 48'. I went with Firestone FS560's as I have had good luck with them and installed them on our last MH. I am not sure if the FS 560 can be gotten in 19.5" but it would be worth a look.
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Old 06-20-2015, 03:43 PM   #6
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I replaced tires the same size and mfg as yours with Sumitomos. They greatly improved the ride. I traded shortly thereafter, so I can't comment on how they wear.
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Old 06-20-2015, 04:38 PM   #7
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Cooper "RoadMasters" 19.5's are less than $300 per tire. Just paid $305 per tire for 22.5's. Smooth ride / have all tires spin balanced. Happy Camping
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