Tire size calculations

Found this site which I've found very helpful in determining tire size differences and how much bigger or smaller or wider you can make a tire verses the stock size, and how the change will affect your speedometer, thought I should post it for everyone.

http://www.kouki.co.uk/Utilities/tyresizer.asp

Try it out, works great and it's easy to use/understand.

Thats awesome, good post.