Suspension Fox dual Rate Springs Upgrade Kit or Racer Tech Dual Rate Spring Kit January 20, 2016 Fox Shock Dual Rate Springs kit is in stock and Racer Tech is 3-4 Weeks – Same Price. What would you do? wait for Racertech? Or do the Fox Shocks spring upgrade? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related