XLT Extension Nut

All custom wheels do not mount the same. Some wider custom wheels may require the XLT Extension Nut* for proper mounting on wheel balancers. The XLT Extension Nut* combined with the Atlas® MC-XLT adapter kit will extend the capabilities of your Atlas® (passenger and light truck) computer wheel balancer to balance a variety of motorcycle wheels with hub assemblies up to 13.75 inches wide.