Built to industry standards from high-quality Chrome-Silicon spring steel, the Tusk Rear Shock Spring gives you the freedom to adjust your rear shock spring rate to give you the confidence of knowing that your bike can handle whatever you throw at it. Whether you're packing your bike with luggage and hitting the road, flowing through the single-track, or throwing it down on the moto track - improve your riding experience with the Tusk Rear Shock Spring.