412 Series, 12.6in. Standard Spring Rate Rear Shock Absorbers - Black. Fits Dyna 1991-2017. - Progressive Suspension Exhaust Flanges & Associated 5” Long by 3

5” Long by 3

* CD-MPRMICROAWDYN – Dyna ’12-17

Simply replace the factory ECM and oxygen sensors

The kit includes a pair of 27mm axle wrenches

412 Series, 12.6in. Standard Spring Rate Rear Shock Absorbers - Black. Fits Dyna 1991-2017. - Progressive Suspension Exhaust Flanges & Associated 5” Long by 3Features & Benefits: * 412 Series Shock. * Best value shock on the market today. * Simple, durable design will be an improvement over the Original. * Double wall steel body construction. * Nitrogen charged, multi staged velocity sensitive valving. * Smooth, consistent damping. * Multi position cam style preload adjuster. * Progressively wound Spring. Tech Tips: * Standard Spring Rates are recommended for riders that weigh under 110kg. * Heavy Duty