Polaris Sportsman 570 570sp to stiff October 26, 2015 So I bought the 570ps for my wife, how ever it’s a stiff sob. The sp has the upgraded suspension with dual A-arms but it’s too stiff. I have the adjustments on the springs all the way down. Is their a way to adjust it softer? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related