Tire Size Conversions?

Bryce Frazier · Nov 20, 2014

Hi all, well, yesterday I got in touch with a lady that has "piles" of used tires. She told me that some are wasted, but some are nearly new! Sooo, I am going over there sometime to have a gander and see what I can see. She told me that the only kind of sizing she knows of is the modern type they use on cars and little trucks.

So, we all know that car tires work just as good on stuff as implement tires, but how do I convert the size? Is it just by looks?

Would really like to find a chart that I could print out and take with me, and keep around the shop... Going to start snooping around on Google right now, just wondering if you guys knew of anything good?!?! Thanks! Bryce

cannonball · Nov 20, 2014

this will give diameter if it helps
Untitled URL Link

Hay hay hay · Nov 20, 2014

I learned by mistakes. If the used tire is too big, it can rub the floor of a hay wagon. If it is the right height but too wide, it can rub the side of the baler and destroy the tire. If it is too tall, it can change the speed of a ground drive implement. And If it is too little it will blow out in the field with a full load of hay on the wagon.

Learned all that the hard way.

mkirsch · Nov 20, 2014

Divide the metric tire width (first number) by 25 to get a rough idea of the tire width in inches.

If you're talking car tires, you'll find that most modern car tires are much too wide for typical implement rims. Older tires are generally rotten.

Also the weight rating on car tires is extremely poor compared to implement tires. A nearly-bald, half-rotten car tire doesn't last long under a hay wagon, overloaded and rolling over rough terrain.

Look for tires with LT in front of the size rather than P.

Tire Size Conversions?

Bryce Frazier

Well-known Member

cannonball

Member

Hay hay hay

Well-known Member

mkirsch

Well-known Member

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