700902 - PN Racing Mini-Z V2 Pro Tire Gauge 22.0mm-23.4mm

A must have tool for serious 1/28 racers and hobbyists. This tire gauge allows you to accurately measure the height of the tire and set up the car for the track. 

We recommend 22.2-22.5 for faster classes and 22.5-22.9 for slower classes.