Fox suspension dhx2 factory 2pos adj shockready for all day epics on your favourite local trails, this mountain bike mtb rear shock features a coil spring ready design, an updated chassis and damper plus a high flow main piston for precise and controlled handling on the most demanding of terrains. Part of fox suspension's prestigious factory series, this model is kitted out with proven technologies and is designed to exceed the demands of factory level riders.adjustable coil spring rear shockbenefitting from fox suspension's finest technologies for modern mountain bike riding, this rear shock is equipped with a coil spring ready design and an updated damper. The updated x2 damper maintains a twin tube architecture, employing a proven dual shim stack main piston for improved damping and more precise tuning than ever before. Fox suspension also added its patented variable valve control vvc technology to the high speed rebound hsr circuit, which allows for easy, external fine tuning of your suspension performance. Just like grip2 forks, the x2 family of shocks also feature identical 8 clicks of adjustment on high speed compression hsc and high speed rebound hsr. This allows you to make consistent adjustments between their front and rear suspension. Nothing sticks to the ground quite like a coil shock. With an entirely updated chassis and damper, enhanced tunability, smoother action, and a mcu bumper for progressivity and end stroke control the fox suspension dhx2 factory 2pos adj shock is ready to race straight out of the gate.please note a coil spring is not included with this model but is available to purchase separately.features shaft coating chromoly crmo steel use mtb spring type coil spring adjustment lever 2 position open firm lever retains high and low speed compression adjustment adjustment features high and low speed compression, high and low speed rebound variable valve control vvc rebound yes detents on spring collar yes spring included no, available separatelytechnologies factory series “factory” says it all feature packed and designed to exceed the demands of fox suspension's factory level riders. What we sell is what they race. Updated chassis the outer body on the dhx2 features steel construction with finned inner tubes for reduced hysteresis. Dhx2 features an updated low friction hard chrome coating on the shaft with new seals designed to pair perfectly to the new shaft coating, reducing frictions and increasing seal life. Updated damper the updated x2 damper maintains a twin tube architecture, emplying a proven dual shim stack main piston for improved damping and more precise tuning than ever before. Fox suspension added its patented vvc technology to the hsr circuit. Vvc is a proprietary variable valve technology that allows for easy, external fine tuning of suspension performance. Just like grip2 forks, the x2 family of shocks also feature identical 8 clicks of adjustment on hsc and hsr. This allows the rider to make consistent adjustments between front and rear suspension. Mcu bumper the updated mcu bumper is designed to allow for supple beginning and mid stroke, seamlessly transitioning to a bottomless end stroke. Independent firm mode circuit this version's 2 position switch operates on an independent circuit, resulting in a firmer lockout. Revised spring changes the coil sprung dhx2 now uses a full spring collar, held in place with a c clip, and a new preload collar with indexed notches to allow for light preload without the collar backing off.buy fox suspension components from chain reaction cycles, the world's largest online bike store.