Progressive Suspension PS-412-4042B 412 Series 12" Rear Shock Absorbers w/Full Cover Black for Dyna 91-17 • 2 zippered mesh vent

• 2 zippered mesh vent openings for adjustable air intake

* Double walled 1-1/4in

* OEM Wheel Size = 21in

chrome plated fittings

Progressive Suspension PS-412-4042B 412 Series 12" Rear Shock Absorbers w/Full Cover Black for Dyna 91-17 • 2 zippered mesh ventThe 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