AIR-A Series, Adjustable Rear Air Shock Absorbers - Black. Fits Dyna 2006-2017.

Features & Benefits:-

* All the benefits of the new AERO Suspensions Systems, plus six external knob adjustments allow fine-tuning of rebound.

* Provides optimum rebound performance for any given rider weight, personal ride quality preference or personal riding style.

* Light to heavy riders can fine-tune ride preference.

* Aggressive to casual riding styles can tune to desired quality or personal preference.

Made by hand in Sturgis, South Dakota, USA !