The 2812 MK II Series are mono-tube dampers specifically designed for competition purposes, featuring externally adjustable compression and rebound. The precision adjustment mechanism allows for maximum control possible over the damping forces generated. In modern racing applications damper sensitivity, repeatability, and ease of use are a must. To achieve this, the 28 series uses a superior and advanced adjustment mechanism operated by closing or opening valve-loaded ports. By having all damping forces generated at the piston, the control over the dampening forces is very precise. Have a question regarding this item? Please use our Contact Us form or call (707) 938-5664 for Customer Service.