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Old 12-10-2007, 09:24 AM   #8
scatesracing
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Join Date: Sep 2007
Location: Derby Kansas
Posts: 296
Re: tire sizing hurts my head

Quote:
Originally Posted by 69C10@16 View Post
sumbody plz help me b4 my head explodes.
ok. my tires right now are 235/75/15.
according to the little calculator that means they r 29 x 9.25 x 15
ok. i know the 15 is wheel diameter.
is 29 the tire height?
and is 9.25 the width?

because if it is then the cragars i want will not be wide enough for me. the cragars are 17x9's. and if my current tires are 9.25 inches wide then i want to go like 11 inches wide.

what size tires would you recommend and can i go wider with the tread than 9" with still decent sized tires and no rub. Man this makes me confused.

I think i want 31 inch tall tires. ive been told 33's will fit without rub but im also lowering the truck 2/4. so i figured 31's would be my max.

Thoughts? Comments good/bad?
its all metric 235 is the width 235 x .03937 = 9.25195 inchs...... the 75 is a percentage 75% that is side wall 9.25195 x .75 =6.9389625 take that times 2 for the top side wall and the bottom side wall x 2 =13.877925 now add the rim dia (15") and you get 28.877925 28 7/8 inchs tall ( uncle ownes a tire shop) I have found that calculators very from site to site they are all "close"....... tape measure works good too lol.............................................wow now my head hurts
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