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Polyester 1200D reinforcements on shoulders and elbows
⢠Features heavy-duty construction for excellent service and puncture resistance
(2) Round foam tabs with adhesive backing
Use of performance valve-springs is not required but may result in a quieter
(1) 5/16"-18 x 3/4' Tapered flat head bolt
Progressive Suspension PS-412-4044B 412 Series 12" Heavy Duty Spring Rate Rear Shock Absorbers Black for Dyna 91-17 Polyester 1200D reinforcements on shouldersThe 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