what is radial run out
These terms refers to the wheel rim. Radial run out is the difference between the high spot and the rim average, on the outer or inner wheel rim. It is best measured at the bead seat, if possible. Lateral runout is the side-to-side wobble of the wheel. on the outer or inner. Both can be measured using Hunters Road Force Balancer. But this is not to be confused with TIR (Total Indicated Run-Out) TIR (Radial) is the difference between the high and low on the outer or inner wheel rim.