Assembled by hand in Sturgis USA. Lifetime Warranty. Touring-specific coil spring rates provide superior ride comfort, improved performance, and increase resistance to bottoming out for all day comfort. Provided by spherical bearing on top and bottom mounting points for easy installation. Preload adjusted by hand, no tools needed. Features independent compression and rebound damping adjusters that are specifically designed to make fast, precise and repeatable changes to the comfort and performance with a turn of a knob. Nitrogen filled piggyback allows ultra fast response and stiction free movement. Heavy Duty available for most models, see notes.