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Need New Tires...Crazy Idea: 14" Wide Rear Wheels?

Tires alcoa aluminum wide base wheels motorhome 10 lug

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#1 mlmacchia

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Posted 31 August 2013 - 10:48 PM

2005 Coachmen 380D, diesel pusher, looking to replace the tires before next season. Currently running 275 80R 22.5's on 10-lug steel wheels with the fake wheelcovers. When I change the tires, I was considering replacing 4 of the wheels (front and outside rears) with forged aluminum wheels to save a little weight & upgrade the rig.

Then a wild thought popped into my head...how about the 14" wide-base wheels & tires to replace the rear duals? I'm sure many of you have seen tractor-trailers on the road with the single wide rear wheels in place of the duals...I'm wondering if they would (a) work in an RV application and ( B) not look stupid.

 

This coach does NOT have a tag axle, so we're talking factory configuration of 2 front wheels and 4 rear.

 

Thoughts?

 

Thanks

 

Matt


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#2 ahepburn51

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Posted 01 September 2013 - 12:38 AM

Have you checked the prices? Super Single wheels will run you around $1000 each and up; then the tires are in the $1000 range as well. Once you have them mounted, if you have a tire problem on the road you can expect to wait over 8 hours for help because not many tire shops stock them. If you can live with that you should consider what truck drivers say about them: I know very few drivers who think much about them for over the road driving.


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#3 wolfe10

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Posted 01 September 2013 - 07:58 AM

Here is another discussion on super singles here on the FMCA Forum: http://community.fmc...tires/?hl=super


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Dianne and Brett Wolfe
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#4 rmartin6600

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Posted 02 June 2014 - 02:36 PM

There is one, if not two guys running super singles on Tiffin RV's.  I have seen there postings on the Tiffin RV Network where they just mention they have them installed. I have been reading that forum almost daily since we bought our Tiffin Bus 4 years ago; so far have not seen any pro's or con's from guys driving them. You might join and post the question over there.  One of the super single guys is an avid poster.  Very knowledgeable also.  Richard


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#5 timthecarguy

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Posted 13 February 2015 - 01:18 PM

I run super singles on a country coach they are great and the cool factor is a plus they are Goodyear 445 22.5


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#6 Tireman9

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Posted 19 February 2015 - 11:55 AM

I see no meaningful advantage to switching from duals to singles. I do see many downsides.

 

BUT if you like the looks and the cost isn't a consideration I have no technical problem with people modifying their RV with this change as long as the load capacity of the vehicle are covered.

 

Have you considered getting your wheels gold plated? :rolleyes:  Sure would be distinctive.

 

Just be sure you understand all the consequences.


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Retired Tire Design and Quality Engineer (40 years experience).
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#7 jleamont

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Posted 19 February 2015 - 12:30 PM

I agree, No real advantages, also the axle hubs and bearings are different due to the load displacement on the axle hubs with the singles. I just went throught this at work with changing a tractor over to singles. A regular dual wheel combo has one wheel riding to the inside of the hub center and the other wheel is on the outside of the hub center which displaces the weight evenly over both bearings and across the hub. The single wheel places the load all to the outer bearing, this is the reason for the special hubs and bearings to handle the weight imbalance, most trucks when this option is ordered also changes the axle tube strength for additional support. The main concern I have is once you have a flat you have to stop and stay there until help arrives, there is no "limping it" to a safe place without destroying a wheel.


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Also tagged with one or more of these keywords: Tires, alcoa, aluminum, wide, base, wheels, motorhome, 10 lug

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