With a portable tire changer? Here are some links to the device I am reffering to:

http://www.harborfreight.com/cpi/cta...emnumber=34542


I've got an event planned that will chew through many tires and I figured this would be a cheap alternative to buying several sets of wheels...change tires at the track in the pits! What do you all think? Has anybody used one of these before? Or even on factory Z wheels?

 

it looks like it only changes tires up to 16 inches