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Topic Review (Newest First)
04-04-2012 09:43 PM
This one

Hey Man, This is a great match for 7.50-16 bias in a radial(215/85/16) Michelin XPS RIB. Rated for RV's and Trailers, E load range. Best thing I ever did to my vintage RV. RIB
04-04-2012 08:14 PM
matt167 Yea, theres really no need for a trailer specific tire anymore.. The old bias ply trailer tires, sure. they flexed a bit, but with Radial technology, it's not much diffrent between LT and trailer.. If you can get 15" rims , you could go to a 235/75/ 15 and get $80 Goodyear tires from Walmart.
04-04-2012 07:00 PM
Irelands child I don't know what your trailer is in terms of weight, but many of us that have pretty good size RV's have gone to the LT (light truck) tires rather then the trailer specific. The Goodyear Marathons have of late become garbage as many sizes are being made in China. These have had many problems with tread separation, sidewall bubbles or just plain unexplained failures. Then there are those that are many years old even before they are sold and mounted. Carlisle's have been reported as having significant problems as well, The Maxxis, so far have reportedly been pretty good. Pretty much the folks that have my size and weight trailer (35' and up 5th wheel) have gone to Michelin LTS, Goodrich T/A or in my case, General Grabber and in 10 ply 'E' rated LT's.

Take a look at this site and just do a search on 'tires'. There is one guy who swears up and down that TT's need ST tires, and he is getting boring as he is dead wrong.
04-04-2012 05:07 PM
Bowtie man Look into the Good year marathon trailer tires . Would be a good place to start.
04-04-2012 05:34 AM
75gmck25 I took a look at a couple of online RV supply places and was surprised to find that 7.5x16 trailer tires are usually 12 ply rated, so they are very heavy duty tires. However, despite how expensive they are, they all seemed to be bias ply (no radials). Questions about which alternate sizes would work were very common in several online forums.

04-04-2012 04:40 AM
75gmck25 Also make sure you are looking at trailer tires instead of car/truck tires. The sizes look the like same sizes as older car tires, but they are different tires. Trailer tires have a lower load rating, but may cost more than car tires because the sales volume is lower.

235/85R16 is a very common tire size for 10 ply truck tires, but that would be overkill for most trailers. I'm not sure they make them in a standard C load rating.

Figuring out good replacement sizes for older tires always has a few alternatives. The original tires on my truck were 9.50x16.5, which turns out to be about 31" and suitable for the stock 16.5" rims. However, I am using 245/75R16E tires (31") and 16" wheels instead because they are very easy to find. I could also use 235/85R16E, but they are more like 31.5".

04-03-2012 06:24 PM
LATECH Look here . there is a wealth of info here

At the top of the page there is a block that says "shoppingtools"
Hover over that and the pull down menu will appear.
Scroll down the pull down to Tech Center,click on that.
There is everything you need to know about making the right choice and getting the correct size.
03-25-2012 06:53 PM
7.50 X 16 tires

I have just bought an old camping trailer and I need to change the tires on it. The tires are 7.50 X 16 and I would like to know what size they are, in standard modern measurements.
I had done a search online and found a couple of times that it is equivalent to 235-85-16, which turns out to be very wrong, this is too wide to fit in the wheelwells...
I understand it means the tire is 7.5" wide (measured how?) and goes on a 16" wheels, but this does not help much! I have measured the tire diameter, and it is 31".

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