Welcome to the new and improved Proflex / K2 Tech Forum!
I just parted out my 855. I have 2 Risse shocks that are barely used.I have the Genisis that was on my Girvin fork and the Astro 5 that was on the rear.
I have the Genisis that was on my Girvin fork and the Astro 5 that was on the rear.
I think the freedom adapter for the x56 by risse will let the 855 shock fit the 857