When a track dries during a stint, what is the recommended tire transition?

• A. Stop the car
• B. Do nothing
• C. Use dry tires immediately
• D. Transition to intermediates and eventually slicks

Answer: (D)

As the surface changes from wet to dry, the goal is to match the tire to the current grip level. Wets are built to push water away, but on a drying track they become slower and less efficient due to tread drag and overheating. When the track is still damp but not fully wet, intermediates strike a balance: their tread helps clear remaining moisture while providing solid grip on a drying surface. Once the track is truly dry and the rubber can fully grip, slicks deliver the maximum traction by maximizing the contact patch. So, the best approach is a staged transition: move from wets to intermediates as conditions improve, and then to slicks when the track is fully dry. Stopping or sticking with wets would waste time, and trying to go straight to dry tires on a damp surface risks sliding or loss of control. Switching to intermediates and eventually slicks keeps you fastest and safest as the track dries.