Hepfner Racing Products STW5025-100 Top Wing Wicker Bill 1in Tall

The Hepfner Racing Products STW5025-100 is a high-performance top wing wicker bill designed to enhance aerodynamic downforce on sprint cars and other racing vehicles. Standing 1 inch tall, this wicker bill (also known as a Gurney flap) attaches to the trailing edge of the top wing to increase rear downforce and improve traction in the corners.

Key Features:

• 1 inch height for optimized aerodynamic performance
• Precision-manufactured for consistent airflow management
• Durable construction designed to withstand high-speed racing conditions
• Easy installation on top wing trailing edge
• Helps improve corner speed and vehicle stability

Wicker bills work by creating a low-pressure zone behind the wing, effectively increasing the pressure differential across the wing surface. This results in additional downforce without requiring a more aggressive wing angle, allowing teams to fine-tune their aerodynamic setup for specific track conditions. The 1-inch height provides a balanced increase in downforce while minimizing drag penalties.