Wheel size

[Monaco Wolfy]

I plan to use a Roadmaster spare tire mount on the back of my Windsor. I'll need to pick up a steel wheel to mount my spare tire on. The tire size is a 295/80 22.5. I'm guessing the wheel is 8 1/2 in wide. Does anyone know for sure?

[CountryB]

Originally Posted by Monaco Wolfy

I plan to use a Roadmaster spare tire mount on the back of my Windsor. I'll need to pick up a steel wheel to mount my spare tire on. The tire size is a 295/80 22.5. I'm guessing the wheel is 8 1/2 in wide. Does anyone know for sure?

That is the standard width. You also need to be sure to get the correct size "hub bore size" and "wheel stud size/spacing".

This is the spare wheel I bought for my coach.

[96 Wideglide]

More than likely 8 1/4" wide.

[vito.a]

There is a sticker next to the drivers seat that lists tire and wheel size. The wheel is a 22.5 X 8.25".
A tire and wheel assembly is extremely heavy (over 200#) and very difficult to handle without the long irons the tire guys use. I assume you already know you need an impact capable of 450 ft lbs plus as well as a torque wrench. The other issue is the Accuride aluminum wheels are thicker than a steel wheel.

[moisheh]

I do not know why anyone would want a spare wheel for a diesel MH. Do you have the strength to handle a heavy wheel and tire? Do you have the correct tools to loosen the wheel nuts? Wheel chocks? large pry bar to lift wheel into place. 2 by's, 12 ton hydraulic jack? Most people just get emergency road service. Changing a tire on a big MH is dangerous if you cannot get off the road. People die trying to save a buck!

[Monaco Wolfy]

Thanks guys. My main concern is having the tire available. I don't plan on ever changing it by self. I have roadside. Vito, you're correct. The wheel thickness can be an issue. That's why I was thinking it might be best to go with the steel wheel. I'm thinking if an aluminum wheel gets chewed up enough from running flat. The steel one would at least get me on my way until I can replace it with an aluminum one. On the other hand if I had an aluminum spare wheel , the lug bolts may not be long enough if used on the inner duel. Am I making sense?

[moisheh]

If you are using road service just buy a tire. The road service will change the tire. That tire will rot before you ever get to use it. There are hundreds of thousands of motorhomes with no spares.

[Ivylog]

Originally Posted by moisheh

I do not know why anyone would want a spare wheel for a diesel MH. Do you have the strength to handle a heavy wheel and tire? Do you have the correct tools to loosen the wheel nuts? Wheel chocks? large pry bar to lift wheel into place. 2 by's, 12 ton hydraulic jack? !

Yes and it’s 8.25” wide rim.

[Outbound]

If you have a tire monitor system the odds are you will not destroy a rim before pulling over eliminating carrying an extra wheel. IMHO

[Monaco Wolfy]

From experience, I've learned that many roadside service companies do not carry the size tire needed for my coach. So if I do need a tire I will have to buy their undersized version and then buy another correct sized tire to replace the one they just sold me. I've been through this once with another coach. The aluminum rim was damaged enough to where it would not hold air. I don't wish to go through that again. Odds are the wheel will not get damaged and I would just as soon take my chances and carry only the tire. But that leaves me no good way of attaching the tire to the mount and nowhere to store it in the coach where it's not in the way.

[CountryB]

Originally Posted by Monaco Wolfy

Thanks guys. My main concern is having the tire available. I don't plan on ever changing it by self. I have roadside. Vito, you're correct. The wheel thickness can be an issue. That's why I was thinking it might be best to go with the steel wheel. I'm thinking if an aluminum wheel gets chewed up enough from running flat. The steel one would at least get me on my way until I can replace it with an aluminum one. On the other hand if I had an aluminum spare wheel , the lug bolts may not be long enough if used on the inner duel. Am I making sense?

That's the smart thing to do. IMO.
I carry a mounted spare - and I had to use it once. I carry the tools to change a tire, but also have Roadside Assistance so I could call them to install my tire if I don't mind waiting or the weather is bad or traffic/safety is an issue.

It's better to be prepared and not need the spare - than to need it and be at the "tire service guy's" mercy (regarding tire brand and prices, and waiting for help).

[geordi]

How much is that mount going to cost you? How about the wheel and the tire?

Now.... Here's my experience. I didn't have a spare. I had a blowout, on Chinesium tires that were likely not living up to their weight ratings (gee, who'da thunk they might counterfeit products or falsify ratings?) and the roadservice would ONLY sell me the same size tire - for a grand total of $800 on the side of the road.

The service call would have been $150-$200 if I'd had the tire already, and the ACTUAL retail price of that tire (Bridgestone) is $400 anywhere else at any other time. So that was at least a 50% markup just on the tire, PLUS an insanely expensive roadservice call just to change the tire - and I was a total of about 5 miles from the Loves dispatch point too, so it wasn't like it was a lot of miles OR time for the callout.

I now have a mounted spare, matching aluminum wheel to the rest of my wheels. I got a pair of wheels off Craigslist that needed cleaning, spent some time and effort polishing them, and sold one of them for the same $150 that both cost me - so my cost was only the cleaning and time. The tire that's on that wheel now is a 2016 Goodyear (ok, not great age) and if/when I decide that should be replaced instead of being an emergency spare, I can get another tire used from a Goodyear truck shop for $50-$150 depending on the age and condition.

Anyone want a 255/75-R225 Bridgestone? BRAND NEW. Sell it for $400.