Adopting semi-automatic lateral swinging arm to change tyres. Tyre changer just for motorcycle tyres. Adjusting mobile slider to be suitable for different rim ranges. The working head is plated hard chrome on the surface through high frequency sudden fire,this kind of treating processes insure the intensity,toughness and abrasive resistance. The tools touching rim directly like changing working head,jaws, crwobar and spade are all equipped with protector,these protectors ensure no hurt to the rim.