What tyre changer should you choose? It depends on your actual needs and expectations. For instance, if you mainly deal with car repairs, want to get a unit as cheaply as possible and tyre change is an additional job only, then feel free to pick semi-automatic ones. However, if you are running a tyre service with many tyres to work on daily, then consider getting a more advanced unit for your daily needs, with RUNFLAT for instance. Or consider getting two machines - one automatic, with a RUNFLAT arm, the other one semi-automatic.