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Old 10-07-2017, 01:08 PM   #1
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Default RoadTrek spare tire warning.

Hi.
I think I saw something about this here a while back.
But I thought I would just make you aware of this dangerous condition.
And maybe save you the trouble I went through.
The Spare tire rim is too big if your Roadtrek has the aftermarket aluminum rims.That is if you have the same size tire on all five rims.which many have.
Recently on a day trip to the Keys from Naples Florida. We had a blow out on the 190 Pop. Difficult to Jack up and change the tire on the side of the express way for sure. But got her done.
About 30 miles from my home on alligator alley....in the middle of the swamp...in the middle of nowhere . The spare started to make some noise!
So I decide to exit at a rest area to have a look.
Thank God I did.
Just as we got into parking spot ....we heard a big bang !
I jump out and to my surprise the tire was literally laying on the ground!
It had come completely off the rim.
So,now wait a couple hours for a flatbed to come and carry me home.
Luckly I was just a little ways from home.
After all this ,I did some research. Found out the tire size used on the aftermarket wheels are not really wide enough for the stock rims.
And that it is not recommended by ANYBODY that they be used together.
If you have this combo on your van . Just drive slow and carefully .try not to go any further than you must.
And probably should consider putting the right sized tire on the rim. Or try finding another after market rim to match.
It was a horrible,long day. Wouldn't wish it on anyone.
Just thought I would put it out there ,so you'd know.
Thanks
Cheers
Eddie
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Old 10-07-2017, 01:45 PM   #2
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.

Sorry to hear that.
Thanks for the heads up.

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Old 10-07-2017, 02:47 PM   #3
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Default Tire danger

Hi
Just thought I would bring it up.
Most of us buy new tires....and keep the best old one as our spare.
In this case,might not be a great idea.
Wish I could find another one of the aftermarket rims.
But to find the right style and size has been impossible.
For now I had the guys in our service department find me a nice used appropriate sized tire.
Thanks
Eddie
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Old 10-07-2017, 03:01 PM   #4
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Mine has aftermarket aluminum rims. Round circle cutouts and made by Dandy of Florida I believe.

Can you show a picture of the rims you are talking about?

What tire sizes are you talking about?
vehicle tires
spare tires
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Old 10-07-2017, 06:39 PM   #5
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It sounds like someone put a 16.5" tire on a 16" rim. It doesn't sound like a width issue as truck wheels are always pretty narrow and tire size you can go on a van isn't all that wide.
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Old 10-07-2017, 07:09 PM   #6
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Need to be more explicit. Essentially you said "I had a problem"
Year RT
Name of mag wheel and model
Tire size on coach
Tire size on spare that fell off. Spare wheel is OEM?

You have had some good posts here. Probably too pissed to be thorough.
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Old 10-07-2017, 11:20 PM   #7
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Default Tire wheele issue.

Hi.
First of all...I do not think they make a 16.5 tire? 15/16/17 smaller and much larger, but no half sizes?
Next. The OEM wheel is 8.5 inches wide.
The aftermarket aluminum wheel is 7.5 inches wide...a full inch.
Which is a lot when it comes to tire sizes.
I work at a auto dealership,and have been in the auto restoration industry for over thirty years.
Don't know everything about cars.....but I do know the basics.

As for year of my Roadtrek.....my bad I guess.
It's a 1997 Roadtrek Pop. Built on a dodge 3500 one ton chassie with the 5.2 v8 motor.
The wheels are American Racing 7.5 x 16 inch rims. Not sure of model,but under this circumstance that does not matter.
The factory OEM spare rim is 8.5/16
The tire is a 265/75/16 michellin
The problem here is that a 265 tire is NOT recommended to be mounted on a 8.5 inch wheel. The rim is too wide ,and does not allow a safe match up of tire to rim.
To be honest.....any model or make of RV could have this issue.
Any time wheels and or tires are exchanged. This type of thing could happen.
I was just trying to help people avoid the horrible ordeal I went through.
And after doing some research realized this was an issue that others had already had.
So ,I would recommend that unless your RV is brand new or is at least on it's OEM rims and tires...........you take a moment before any long trip to check your tires and rims out .
Just my two cents
Cheers
Eddie
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Old 10-07-2017, 11:31 PM   #8
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Hi.
Don't think they manufacture tires in 16.5? Could be wrong?If they did,do not think you could get it to stay on or hold air.
As for width....people put unsafe size tires on rims all the time.
Many tire stores now refuse to mount many wheels that people want for safety concerns.
As for vans. Our vans are VERY heavy. So what will probably be ok on a PU with little to no weight over the rear axel....is going to be a serious problem on a rig carrying a lot of extra weight over the rear axel.
Hope this doesn't come across the wrong way.....I was just trying to let people know of a problem that apparently many older road treks could have.
Happy trails and cheers
Eddie
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Old 10-07-2017, 11:41 PM   #9
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You must be too young! We had a 79 Chevy C30 with 16.5" tires. The tires began to get hard to find. A incidents were caused by 16.5" tires going on 16" rims and 17" tires on 16.5" rims. The only solution was to ditch the 16.5" rims.
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Old 10-07-2017, 11:43 PM   #10
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Quote:
Originally Posted by Eraygunz View Post
Hi.
First of all...I do not think they make a 16.5 tire? 15/16/17 smaller and much larger, but no half sizes?
Next. The OEM wheel is 8.5 inches wide.
The aftermarket aluminum wheel is 7.5 inches wide...a full inch.
Which is a lot when it comes to tire sizes.
I work at a auto dealership,and have been in the auto restoration industry for over thirty years.
Don't know everything about cars.....but I do know the basics.

As for year of my Roadtrek.....my bad I guess.
It's a 1997 Roadtrek Pop. Built on a dodge 3500 one ton chassie with the 5.2 v8 motor.
The wheels are American Racing 7.5 x 16 inch rims. Not sure of model,but under this circumstance that does not matter.
The factory OEM spare rim is 8.5/16
The tire is a 265/75/16 michellin
The problem here is that a 265 tire is NOT recommended to be mounted on a 8.5 inch wheel. The rim is too wide ,and does not allow a safe match up of tire to rim.
To be honest.....any model or make of RV could have this issue.
Any time wheels and or tires are exchanged. This type of thing could happen.
I was just trying to help people avoid the horrible ordeal I went through.
And after doing some research realized this was an issue that others had already had.
So ,I would recommend that unless your RV is brand new or is at least on it's OEM rims and tires...........you take a moment before any long trip to check your tires and rims out .
Just my two cents
Cheers
Eddie
For 1997 Dodge Roadtrek, you would have had 245-75-16 tires not 265s, so that has been changed. The AR wheels may be from Roadtrek, or not, and the same with the spare wheel.

The OEM tires at 245-75-16 would go onto a 6.5-8.0 rim width

The 265-75-16 would go on a 7.0-9.0 rim, per tire rack so you are OK

16.5" tires and the other .5 increment tires have been truck sizes traditionally, and are still listed in several sizes on Tire Rack.

Time to take a deep breath and relax, and then collect all the correct information, as what you have stated isn't correct, and the correct information would indicate you shouldn't have had a problem.

I can tell you it is quite common to have the 16.5 tire put on a wrong rim, I have heard about it regularly over the years. Take a good look at the carcass and see exactly what it says.

It looks like somone has done some tire and wheel swapping somewhere in the past, as most of what you have is not stock stuff, likely including the spare rim which would normally be a 6.5" wide rim for a stock van for most companies. Maybe a 7.0" but less likely, but not an 8.5" wide.
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