AirFX built the single housing Softail shock air ride system to out perform all other air ride units on the market. Each kit is specifically designed to fit your bike without modification and exceeds all manufacturer specifications. The CNC billet aluminum housing is machined to exact tolerances with a hard coat anodized finish applied to all wear surfaces. The large double sealed composite pistons let you run less air pressure for a softer ride and increase stability in cornering. Both air chambers operate independently and are mounted with friction free composite bushings to keep your suspension geometry and rebound correctly adjusted. Shocks are self-lubricated, corrosion resistant, and rebuildable.