Progressive Suspension PS-412-4037B 412 Series 11" Standard Spring Rate Rear Shock Absorbers Black for Dyna 91-17 * Never use an old

* Never use an old style retaining ring oem 11177 to secure the updated 1-piece Pinion bearing

the Rio Grand is installed to provide you with the protection you need

Part number BL810

Injection molded clear polymer backing plate

Palm slider

Progressive Suspension PS-412-4037B 412 Series 11" Standard Spring Rate Rear Shock Absorbers Black for Dyna 91-17 * Never use an oldThe 412 Series shocks are simply the best value shock on the market today. The 412s simple, durable design means they will be an improvement to your motorcycle's suspension performance for as long as you are riding it. The doublewall steel body construction with nitrogen charged, multi staged velocity sensitive valving gives you smooth, consistent damping. A five position cam style preload adjuster lets you dial in your ride whether you're a light