Fits 2018-2020 Harley-Davidson Softail
The S46 shock features adjustable rebound damping and a hose mounted hydraulic spring preload adjuster. The rebound adjuster featured at the bottom of the shock alters comfort control with over 30 clicks of adjustment for fine tuning the ride quality. The hose mounted spring preload adjuster will allow you to compensate for more weight without the need of preload tools. The HD 504 also features a length adjuster that will raise the shock from 12.5 inches to 13 inches.