Re: Triple tires on big 4wds?.

Posted by buickanddeere on July 08, 2006 at 08:57:22 from (216.183.138.11):

In Reply to: Triple tires on big 4wds?. posted by Jonfarmer on July 07, 2006 at 21:07:03:

Three tall narrow tires have less rolling friction than two wide tires while having the same ground contact area.
In snow for instance while spreading manure in the winter. The taller and narrower the tire, the better traction they had.
A very wide tire works best in sand where there is no bottom.
In soil where there is dry loose soil on top and firmer soil below. Taller/narrower 45 degree lugs and accepting the fact more wheel spin is required to remove the loose soil in order to get a grip on the firmer soil below.
There is still a school of thought out there that believes that any wheel spin while pulling heavy draft load sin loose soil is a waste of fuel and productivity. Isn't so and has been proven by tire companies in test after test.
You cannot add enough ballast to stop wheel spin. Without causing even worse soil compaction and wasting fuel pushing that increased rolling friction and hauling that extra weight around.
Want to seen how much power is required to just move a tractor across a field? Take a small tractor and try hauling a large tractor across a ploughed field. A 40HP/6000lb tractor can get maxed out hauling a 120HP 14,000lb tractor. That's fuel burned that doesn't work the soil.
Some farmers get an ego thing going on the width of their field equipment, whose is bigger. Many times a size or two narrower and shifting up a gear or two would cost less and achieve more.

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