Progressive Springs

Progressive rate rear shock springs with 1.5" ID. Use adapters to pair with shocks utilizing spring seats and preload collars with different dimensions. Spring rates progressively climb to 20-25% at max compression. Perfect for suspension designs that lack inherent progressivity or simply for additional support and less reliance on high-speed compression damping and/or other bottom-out control systems. Make sure the stroke length of our Progressive Springs is equal-to or greater-than the stroke of your shock.