Good tyre info website

I came a cross a link to a great website with loads of info on calculating rolling radii, etc….unfortunately didn't save it to my favourites  :dontknow: and can't find the thread now :cry:

Does it ring a bell with anyone?

How about this one ? http://www.miata.net/garage/tirecalc.html
or this one ? http://www.carbibles.com/tyre_bible.html

This is a very good tyre calculator with speed errors etc.

http://www.rochfordtyres.co.uk/TyreCalc.asp

Rob  

ADeGelas said

How about this one ?  http://www.carbibles.com/tyre_bible.html

That's the one!
Thanks guys!