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Old 01-14-2019, 04:27 AM   #29
gmtech16450yz
Senior Member
 
Brand: Thor Motor Coach
Model: Vegas 27.7
State: California
Posts: 289
THOR #10907
Quote:
Originally Posted by kmhappel View Post
Found a Rickson estimate for the e450:

225/75R17.5 Toyo M143Z's load range "G" tires all the way around, cost about $3,200. includes mounting, harmonic balancing and shipping, also included an unmounted spare tire.

BTW on rv.net I found the following report, "I was able to get new wheels to allow for the correct offset and went to 235/85r16. They had 20% more weight capacity over all, istr. It slightly improved fuel economy and like you my "clock" is now wrong by similar amounts.

I had no blow outs but my tires had 66000 miles on them and were ten years old.

The extra height really helped with the tail dragging on ramps at gas stations. It is now a rare occurrence." [url]https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/26783432/srt/pa/pging/1/page/5.cfm [\url]

seems to validate your move...
My wheels, caps, lug nuts and nut covers were $1300 shipped and 6 tires were $1675 shipped. So $2975 for a what I believed was a better solution than the Rickson route.

BTW, I saw the "clock being off" comment and realized I forgot to mention that if you tune the V10, which you REALLY need to do, the speedo and odometer can be dialed in perfectly to the taller new tires.

And yeah, the load rating on the larger XPS Rib tires are a fair amount higher than what you have on there stock. That's what I meant about the blowout chances being drastically reduced. The stock tires are pretty much at their max rating. The larger Michelins have a healthy margin between actual front end weight and tire max weight ratings.


Just found this... haha...

https://www.instagram.com/p/BocLO3Mlbwo/


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httphttps://youtu.be/2q9BuzNRc3Q
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