RZR XP Suspension Elka Spring rate decipher May 17, 2015 Can any one help me figure out the code for Elka springs. B4.9 x 356 and R14.3 x 70. I know the 356 and 70 are lengths but whats the rest stand for? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related