UAEOffroaders

http://www.tacomaworld.com/forum/tirecalc.php

Hey guys, just found this excellent tire calculator. It tells you all you need to know regarding your current-new tire size selection and even lets you know which RPM's give you most power and best fuel economy.

Enjoy. :smiley2:

Nifty ...but isn't it the same i had posted on this link below LOL

http://www.uaeoffroaders.com/showthread ... bout-tires

Dunno mate, I can't open the miata one for some reason. I am sure the only difference is, this one tells you which gear ration would give you better MPG or power. Plus I think it gives you either gear ration or the RPM's to use with the tires to get the most out of your rig performance wise.