The RACE OPT Progressive Dynamic Spring - High Response offers adjustable spring behaviour across the 2.5 to 3.3 range so you can target midband support or endstop firmness. These green springs are aimed at hobbyists who adjust setups trackside.
The progressive winding helps the suspension resist bottoming while still remaining compliant over small bumps. That balanced pressure spread improves steering consistency through varying surfaces.
Installation is simple and they work with many shock types. Measure your shock inner bore and stroke to verify fitment before installing the springs.
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