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Tractor Pulling Discussion Forum

max tire size's stock class

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UTUpuller

04-12-2007 16:50:49




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hosting my first pull and wondering how to do max size"s for the classes. Do typical stock classes run with the NATPA div 1/2 sizes. I have not paid attention to this I pull the 6000/6500 with my UTU and know the max is 15.5"s, once again did not pay attention to see if there was a any rim sizes with it. I would thankfully take any advice.




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PGpower

04-13-2007 13:28:36




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 Re: max tire size's stock class in reply to UTUpuller, 04-12-2007 16:50:49  
Our club has the following tire size rule for the stock class. It is close to the 'one size over stock rule', but puts deminsions for each weight class.
Rule: 3750-4500# up to 13.6-38 / 14.9-28. 5000-6000# up to 15.5-38 / 16.9-28. 6500-7500# up to 18.4-34 / 16.9-38. No cut or ground tires. Pressed steel wheels are allowed. Must use tire manufacurers recommended rim width for the tire used or narrower.

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The Preacher

04-12-2007 18:14:27




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 Re: max tire size's stock class in reply to UTUpuller, 04-12-2007 16:50:49  
One of the clubs I pull with has a simple "One size over stock" rule. I like that one the best. I pull a standard frame with stock 16.9-30's. This could keep me out of 5000 lb. class with a 13.6 max.



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