When I go get my tires changed they internal clamp to get the tire off then external clamp with protectors to put the tire on. But the internal clamping leaves marks on the wheel.

Two questions:

1) Is internal clamping the only way to dismount a tire?

2) Does internal clamping always result in gouges on the wheel?


internal clamping:


external clamping:

 

A proper machine should have rubber feet on the "clamps" to NOT leave gouges. The most you should get are black footprints from the rubber that can be rubbed off.

 

you can use the "external clamp" method to take the wheels off. how the hell else would you dismount a reverse mount wheel