412 Series, 11in. Standard Spring Rate Rear Shock Absorbers with Full Covers -Chrome. Fits Dyna 1991-2017. - Progressive Suspension 35/39mm Fork Assy's-Tubes & Braces * Replaces OEM # 25607-99

* Replaces OEM # 25607-99 / 25610-99 / 39964-99 / 39954-99

* Machined from solid steel

Typically used for aftermarket 107ci -> 120ci upgrade or 114ci -> 124ci upgrade

* Laser Engraved Logos

Dyna 1991-2017 (Does Not Fit FXDLS)

412 Series, 11in. Standard Spring Rate Rear Shock Absorbers with Full Covers -Chrome. Fits Dyna 1991-2017. - Progressive Suspension 35/39mm Fork Assy's-Tubes & Braces * Replaces OEM # 25607-99Features & 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