Longacre Racing Products 52-61051 Large Spacing Coil-Over Spring Rubber Hard Blue 1.25 Inch

The Longacre Racing Products 52-61051 is a large spacing coil-over spring rubber designed specifically for modern racing springs with wider gaps between coils. This hard compound blue spring rubber measures 1-1/4 inches thick and is engineered for big bar soft spring setups commonly used in oval track racing.

Key Features:

• Hard blue compound provides maximum spring rate adjustment
• 1.25-inch thickness fits large spacing coil-over springs with 2.5 to 2.625 inch diameters
• Polyurethane construction ensures durability and consistent performance
• Allows quick suspension adjustments during practice or pit stops
• Specialized design accommodates modern coil-over springs with fewer coils and more travel
• Used by professional Sprint Cup teams for fine-tuning corner weights and spring rates

This spring rubber is ideal for racers looking to fine-tune their suspension setup without changing springs. The increase in spring rate varies depending on rubber hardness, placement location, and spring type. Use a spring rate tester to verify changes after installation. The hard blue compound offers the firmest adjustment option in the Longacre spring rubber lineup, with softer options available in red (medium) and orange (soft).