Revolutionize your riding experience with the all-new Burly Brand Stiletto monoshock Game-changing upgrade designed to transform your Harley-DavidsonÖ M8 Softail« into an unrivaled corner-carving machine Engineered with precision, this shock redefines high-performance craftsmanship, taking your bike to unprecedented levels of comfort and control No matter your style of riding, this monoshock will elevate your Harley-DavidsonÖ to a new level of excellence 13.5ö Shock Length High Pressure Nitrogen Charged Damper Progressive Rate Spring 40 mm Monotube Construction Internal Floating Piston (IFP) Deflective Disc Valving Preload adjustment via threaded preload adjuster with preload spanner wrench (included). SHOCK STILETTO 13.5 M8 SOFTAIL