AIR-A Series, Adjustable Rear Air Shock Absorbers - Black. Fits Road Glide 2017-2023 - Legend Suspension Transmission Internals XL 5 spd era the Viscosity Regulated Flow (VRF)

the Viscosity Regulated Flow (VRF) valve will automatically close the #4501’s by-pass hole

* Simplistic design allows it to slip into any stock or custom touring bike

You might also need a longer bolt (3/8-16) to go with the spacer

* Fits BDL-EVO-11S-A FXR & Touring 1990-2006 3″ Belt Drive Kit

* Has hole for 2007up models with Clutch Switch

AIR-A Series, Adjustable Rear Air Shock Absorbers - Black. Fits Road Glide 2017-2023 - Legend Suspension Transmission Internals XL 5 spd era the Viscosity Regulated Flow (VRF)Fitment Details * Fits FLTRX 2017up Road Glides Models. 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