Swift Springs H025-135-0008 Helper Spring ID Tall Rate - 2.5in 5.3in 4lb

The Swift Springs H025-135-0008 is a precision-engineered helper spring designed for coilover suspension systems. This high-quality spring features a 2.5-inch inside diameter and stands 5.3 inches tall, making it ideal for fine-tuning suspension setups and preventing coil bind in compressed situations.

Key Specifications:

• Inside Diameter: 2.5 inches
• Free Length: 5.3 inches
• Spring Rate: 4 lb/in
• Coilover application (C/O)
• Manufactured from high-tensile steel with Swift's proprietary H&R alloy composition

Helper springs are essential components in coilover systems, maintaining spring seat contact throughout the suspension's travel range while adding minimal additional spring rate. The lightweight 4 lb/in rate ensures the helper spring compresses easily under initial load while preventing the main spring from becoming unseated during droop or extension. Swift Springs are known for their consistent performance, durability, and precision manufacturing tolerances, making them a preferred choice for both street and track applications.