Re: my stupid question for the day

Posted by iowa_tire_guy on December 18, 2006 at 15:52:02 from (207.177.88.101):

In Reply to: my stupid question for the day posted by PJBROWN on December 18, 2006 at 08:51:27:

It is a matter of application. The rule of thumb is that between 120 and 140 horsepower tractor it is debatable if they worth the expense. Then I look at what the tractor will be used for. The main benefit of radial is that it can be used at a lower pressure making a larger footprint, up to 40% more. There are some conditions to running lower pressure though mostly being the weight of the axle. I have seen good radial tires ruined because they were run too low pressure for the weight of the axle. Here is one reason not to run any kind of tire ballast in radials, you increase the weight of the axle so you can't run low pressure and which means you have a bias tire at a radial price. (The other reason not to run fluid is that it prevents the sidewall from flexing making it act like a bias tire at a radial price.) The downfall of running low tire pressure is that it makes the tire act funny such as weaving down the road or hop in the field or road. Think running tires real soft on your car or truck. These problems are usually corrected by adding air which takes away footprint with is why you bought the radial. So a radial tire works really good in a 140 plus horse field tractor when it is in the field. Most of the rest of time put on bias.

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