# Rim Guard In The Front Tires?

### #1 ONLINE

Posted November 26, 2012 - 08:13 PM

A pair of 18x8.5-8 Vredestein 6-ply V61 tires just showed up on my front porch

They are going to be going on my Bolens HDT1000. I'm planning on the HDT being my 'plow tractor' as it has the 22Hp diesel in it and a 3-pt hitch.

Since I plan on using it mostly for ground engaging equipment, I figure that a bit more weight at the front wouldn't hurt.

If I do fill them, I will be using Rim Guard as that would give me the best weight/gal. One question is, does anyone know how much fluid an 18x8.5-8 tire will hold?

Also, have any of you guys fluid loaded their front tires, and if so what were your results?

### #2 OFFLINE

Posted November 26, 2012 - 08:24 PM

...how much fluid an 18x8.5-8 tire will hold?...

It is simple, figure out the volume of the tire with this formula below.

Then figure out the volume of the wheel, making sure you are take into account the drop center of the wheel. You might also want to figure out the amount of space above the valve that you probably wont be able to get fluid into. Then subtract that, and the wheel volume from the tire volume. Simple!

Or, you could wait for another member to come and tell you. Then there is choice C... guess.

Disclaimer - the math above may not be correct. Actually, I am almost certain it is wrong. I may not be held liable for any inconveniences.

### #3 ONLINE

Posted November 26, 2012 - 08:41 PM

Weight is always your best friend when doing ground engagement work.

Sent from my XT907 using Tapatalk 2

### #4 ONLINE

Posted November 26, 2012 - 09:13 PM

I'm planning on using 26x

**11**-12 CST ANCLA tires. I'm going with the 1" narrower mostly because of cost, but the narrower tire should 'dig in' better than the wider ones. I know that the 26x12-12 Ancla tires will take 10 gal of Rim Guard which added 110 lbs/tire. If the 11" tires take 9 gal/tire that would be @ 99lbs/tire. If necessary, I also have a set of Bolens wheel weights I can put on as well for another 100 lbs.

I figure that it should hook up really well, and that weight on the front will be needed.

Here is a pic of the CST Ancla tires I have on my 1886. As you can see, they are quite aggressive.

### #5 OFFLINE

Posted November 26, 2012 - 09:16 PM

I did your equation. but.... I keep getting different results? Why do I get the numbers 1614, 1618 and 2414?It is simple, figure out the volume of the tire with this formula below.

Then figure out the volume of the wheel, making sure you are take into account the drop center of the wheel. You might also want to figure out the amount of space above the valve that you probably wont be able to get fluid into. Then subtract that, and the wheel volume from the tire volume. Simple!

Or, you could wait for another member to come and tell you. Then there is choice C... guess.

Disclaimer - the math above may not be correct. Actually, I am almost certain it is wrong. I may not be held liable for any inconveniences.

- Ryan313 said thank you

### #6 ONLINE

Posted November 26, 2012 - 09:47 PM

How about: Total Volume = Overall volume-center volume.It is simple, figure out the volume of the tire with this formula below.

Then figure out the volume of the wheel, making sure you are take into account the drop center of the wheel. You might also want to figure out the amount of space above the valve that you probably wont be able to get fluid into. Then subtract that, and the wheel volume from the tire volume. Simple!

Or, you could wait for another member to come and tell you. Then there is choice C... guess.

Disclaimer - the math above may not be correct. Actually, I am almost certain it is wrong. I may not be held liable for any inconveniences.

For an 18x8.5x8 tire, that would be (3.14*81*8.5)-(3.14*16*8.5) or 1734.85 cubic inches. Using 231 cubic inches per gallon, that's 7.5 gallons of water. Probably not achievable but I'd think you could get 75 to 80 percent. So useable capacity would be 5.5 gallons more or less.

My math could be off, mounting constraints may cause your results to vary etc, etc.

### #7 ONLINE

Posted November 26, 2012 - 10:08 PM

Just 5 gal/tire would be in the neighborhood of 55 lbs/tire which wouldn't be bad at all.

### #8 OFFLINE

Posted November 26, 2012 - 10:22 PM

- ducky and OldBuzzard have said thanks

### #9 ONLINE

Posted November 26, 2012 - 10:52 PM

OK, they say 3 gal for 32 lb/tire. Not as much as I would have liked, but better than nothing.

### #10 OFFLINE

Posted November 27, 2012 - 01:54 PM

**Edited by JD DANNELS, November 27, 2012 - 02:35 PM.**

### #11 OFFLINE

Posted November 27, 2012 - 08:14 PM

### #12 ONLINE

Posted November 27, 2012 - 09:19 PM

**11**-12s for the HDT1000 from here:

http://www.discountu...IRES-UTV-TIRES/

At $72.00 each they are actually cheaper than the V61s I just got from Miller Tire.

http://www.millertir...hd-5-rib-6-ply/

Miller does have a 4-ply in that size for $65.00 but I opted for the heavier tire since I may be putting a Sweepster broom on the HDT in the future.