I GOTTA KNOW!@#@$.... ALCOA

What exactally do you have to mill down to fit regualer 22 or 24 inch tires on semi wheels. ive been trying to find out forever now, does anyone have a picture of a wheel before and after being milled showing what was cut?

I'd like to know also

22.5" and 24.5" wheels are really thick and they machine 1/4" off of the outer bead to shave it to 22" or 24" sorry no pictures but there are some web sites like
http://www.chromewheel.com/
http://www.tnwheelandtire.com/
http://www.dieselwheels.com/
there are more but this will get you started