Burly's new Slammer is engineered to give you a smooth, stable ride at high speeds, without compromising on comfort or style. But it's not just about style, the lowered seat height also benefits shorter riders, giving them more confidence at a stoplight as they can get their feet firmly planted on the ground to keep their bike upright. Features: 12.2* Shock Length High Pressure Nitrogen Charged Damper Internal Floating Piston (IFP) Deflective Disc Valving Preload adjustment via threaded preload adjuster with preload spanner wrench (included) Provides between 1-2" of drop depending on model. Designed to fit seamlessly into your Harley-Davidson M8, ensuring a hassle-free installation process giving you that slammed, lowered look in no time. NOTE: Slammer Shock lowers the rear of the motorcycle. Side stand modifications may be needed.