The Atlas MC adapter kit will allow your Atlas (passenger and light truck) computer wheel balancer to balance a variety of motorcycle wheels with hub assemblies up to 9.25 inches wide. The Atlas MC adapter kit quickly installs in all Atlas (passenger and light truck) computer wheel balancers. A simple sixty second procedure will transform your Atlas (passenger and light truck) computer wheel balancer into a state of the art motorcycle wheel balancer. The MC adapter kit is designed to balance wheels with a center hole diameter from .551 inch (14MM) to 1.25 inch (31.75MM). Although the MC Kit will accommodate wheels with a center hole larger than 1.00 inch, the weight and the width of the complete wheel assembly may require the use of our MC-XLT adapter set.