Created specifically for the Spyder RS, Progressive’s new 435 Series front shocks and 465 Series rear shocks help make for a smoother ride. The 435 Series shocks are sprung and valved to address the challenges of a double A-arm front suspension, resulting in improved stability and steering response. Out back, the 465 Series represents a state-of-the-art, high-pressure gas monotube shock design. Utilizing a 46-millimeter bore and deflective disc piston for precise damping, the 6-millimeter hard chrome shaft rides on custom Viton seats for low friction and leak-free life. Threaded body and a five-position rebound adjuster allows for fine tuning.