I have a beautiful new, never mounted M-Shock for sale, made in France. I purchased this for a project three years ago and never used it. It was planned for my current project but the new owner needs a heavier spring. Spec'd for a 200-lb solo rider. 10 3/8 inches between mounting holes, not length adjustable. Paid $492. Yours for $400 including shipping to continental U.S. Designed and manufactured by a passionate suspension expert. A single adjustment knob adjusts both compression and rebound, keeping the two correctly sync'd. This is my second M-Shock, the first was an excellent upgrade at a reasonable price point. Contact Joe: (v4dreams.com) or PM