412 Series, 12.5in. Standard Spring Rate Rear Shock Absorbers - Chrome. Fits Sportster 2004-2021 - Progressive Suspension Handgrips & Throttle M8'25up Black * Combination kph speedometer and

* Combination kph speedometer and tachometer

17922-99 & 17923-99

* Rising rate resistance to compression

seat shims

(1750-5600 rpm)

412 Series, 12.5in. Standard Spring Rate Rear Shock Absorbers - Chrome. Fits Sportster 2004-2021 - Progressive Suspension Handgrips & Throttle M8'25up Black * Combination kph speedometer andFeatures & 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