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Old 06-19-2015, 05:21 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.

Jim & Judy & Bella (Black Lab) & Sunny (Retriever)
2010 Thor Hurricane 33T
TOAD 2014 Ford Focus LE
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Old 06-19-2015, 07:26 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."

2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"
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Old 06-20-2015, 10:52 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.
Gary Brinck
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL
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Old 06-20-2015, 11:09 AM   #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.
2010 Fleetwood Discovery 40X
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Old 06-20-2015, 11:35 AM   #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.
2009 38' Diplomat
CSM- retired, wife as co-pilot
Reka & Ali providing security (our 2 labs)
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Old 06-20-2015, 02:43 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, 03:38 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

06 HR Navigator 45'PBQ Detroit 60 / 2011 Ford Edge
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