Progressive Suspension 03-1368B 12 Series Dual Rate Shock Springs

The Progressive Suspension 03-1368B 12 Series shock springs are precision-engineered dual-rate springs designed to work seamlessly with Progressive's 12 Series rear shocks. These black-finish springs provide progressive spring rates that deliver a plush ride during normal cruising while firming up under aggressive riding or heavy loads.

Key Features:

• Dual-rate spring design for optimal comfort and performance across varying load conditions
• Engineered specifically for Progressive 12 Series shock applications
• Durable black powder-coat finish for corrosion resistance and custom appearance
• Precision wound from high-tensile spring steel for consistent performance
• Sold as individual springs to allow custom spring rate selection

These springs are designed to replace or upgrade the stock springs on Progressive 12 Series shocks, allowing riders to fine-tune their suspension setup based on rider weight, riding style, and load requirements. The progressive rate design means the spring becomes stiffer as it compresses, providing excellent bottoming resistance without sacrificing small-bump compliance.