The KWB-621 Fast Spin premium line wheel balancer provides a highly precise measurements with an easy and user-friendly operation process containing many advanced program functions specially for alloy rims. It significantly increases workflow and eases the balancing process with semi-automatic 3 parameters measurements, automatic start and stop, high end Sonar Technology, LED and laser system, automatic brake and automatic weight position finder. The special HID-weight process allows for adhesive weights to be placed invisibly behind the rim spokes and OPT-functions for weight control.