Elka Stage 4 rear shock for 2006 - 2010 GSXR 600 / 750

I have for sale an Elka stage 4 shock. Has adjustment for low speed compression, high speed compression, rebound, and of course pre-load. Currently has a 575 spring on it so would suit rider 170 - 190 pounds as it sits. Beautifully made unit as seen in the pictures. Pickup in the GTA with delivery possible if its on my way somewhere. Shipping an option at buyers expense. Just bolt it in and go drop laptimes ! $500