Options for 8.25 x 10 Tires

[Grant Bowker]

I don't think the problem is stability but rather heat buildup causing disintegration. The flexing of the tire as it rolls causes heat. If the heat builds faster than it can dissipate the tire will eventually fail. To reduce the total heat buildup there are choices; reduce the speed (fewer revs/cycles per minute but still a minute to dissipate the heat), reduce the load (less flex per rev/cycle), increase inflation pressure (within limits) to reduce flex, reduce the distance (so heat never reaches the dangerous level) between cooloffs. The tradeoffs between load, speed and distance are well understood in the heavy construction equipment field but apply equally to the highway transport field. Tire makers publish load/inflation tables to describe the allowable load for highway tires at various pressures (they assume we won't actually change speed for any length of time on the highwayso they don't publish for that variable).
The need to get rid of heat also is at least part of the reason tires are lower rated in dual applications than single. With less airflow around the tire it doesn't cool as well.

[horsa]

Sounds like the implement type tire would work out fine then for my application. I'd trailer the load anyway if I needed to take it more than 10-15 miles.

[Gunner]

Hi Dave:

I've seen those tyres mounted on a 6 Pr in Artillery Park, Halifax. They look really good. The problem I had was locating them and potential cost... I think they were well over $200 per tyre when I last looked, versus $85 for the mule tyres.

Whats your source and how much are they? As I posted earlier, I'm in the market and looking at options.

Cheers and Ubique! Mike

[horsa]

I found them at the Specialty Tires web site. Through searching, it seems many vendors get their tires from this company which produces them. Link below to their site with various patterns and specs. The Industrial Deep Lug is under their Industrial Handling Equipment Tires section. They also have a range of military patterns used in the USA including the 7.5 x 10 Mule size.

http://www.stausaonline.com/

The specialty tire place only sells to dealers but they will answer tech questions and can also provide dealer company info for ordering. For me in Texas, the Wallace Wade Tire Company is closest even though I'll probably have them shipped to me. Still working out details but the wider cross section tire (7.5 x10 which is DF9C5) seems to be $135.87.

[rob love]

Wallace comes to the MVPA conventions every year. Next years (2011) convention is in Dayton Ohio, a short drive for the Southern Ontario people. One can call Wallace a couple weeks in advance and he will bring whatever tires you want from STA to the convention at the list price.

[Grant Bowker]

found on ebay today - STA Mule tires as a "buy it now" http://cgi.ebay.ca/ws/eBayISAPI.dll?...E:B:SS:CA:1123
My biggest concern is that I wouldn't have thought a 4 ply rated tire in that size would carry a lot of load. I suggest checking that the capacity suits your needs before buying.

[Grant Bowker]

Firestone Super Rock Grip 12 ply for $50 each. I couldn't find data on this pattern and size for load capacity or speed rating. They aren't chevron tread but do have a lugged treas as opposed to highway tread.
http://store.colemans.com/cart/750-x...res-p-168.html

Another lugged 12 ply in 7.50-10 (but this one looks more fork lift)
http://www.profipneu.ch/default.aspx...9BD30B02F#tech
There is a load capacity given for the 12 ply rated tire but since there is no speed data given I would assume that the rating is only valid for low speeds.
http://www.titantirestore.com/store/deeptrac.html

A 2005 military tire catalog found online.
https://www.themotorpool.org/TireCat...%20Updated.pdf