Trailer Life Meter 728 for 15" Wheel Bias-Ply (ST225/75D15)

The key to selecting the correct Trailer Life Meter based on your application is to determine the outside diameter of your tire.

Outside Tire Diameter: 27.8"-28.2"

Rolling Circumference: 87.3"-88.6"

Typical Tire Sizes: ST225/75D15 (Bias Ply)

Typical Wheel Size: 15"