RZR XP 900 Racer tech dual rate springs December 21, 2015 I have a 13 rzr 900 XP and interested in upgrading my suspension. I trail ride in central KY and I can feel every stick, rock and bump. Just curious how much difference would new racer tech springs(springs only, no revalve)help? Thanks Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related