🏷️ Speed Rating Guide

🔧 How It Works

Speed ratings are not just about top speed — they indicate the tire's ability to dissipate heat under sustained load. A higher-rated tire uses stronger construction materials and can handle higher internal temperatures. This guide maps each letter rating to its maximum speed, heat tolerance level, and typical vehicle application. The comparison tool shows the exact difference between two ratings.

How to use: Select a rating from the dropdown to see its specs. Or pick two ratings and click Compare to see speed difference, heat tolerance gap, and downgrade risk. Use the chart to visualize where each rating sits on the speed ladder.

Tip: Downgrading speed ratings is dangerous for performance driving. On the highway at 70 mph, an S-rated tire is fine. But on a track day or mountain road, the extra heat tolerance of H, V, or W-rated tires can prevent catastrophic failure.

🕐 Saved Comparisons