The width of 315 mm represents the cross-sectional measurement of the Michelin X WORKS HD Z 315/80R22.5 tyre, influencing grip, handling, and stability.
The profile of 80 indicates the sidewall height as a percentage of the width on the Michelin X WORKS HD Z 315/80R22.5 tyre—a lower number means a lower-profile tyre.
The Load Index of 156 indicates that the Michelin X WORKS HD Z 315/80R22.5 tyre can safely carry a maximum load corresponding to this rating of 156. Higher numbers mean greater load-carrying capability.