412 Series, 12.5in. Standard Spring Rate Rear Shock Absorbers - Chrome. Fits Sportster 2004-2021 - Progressive Suspension Handgrips & Throttle M8'25up Black To make the needle stable

To make the needle stable for the high vibrations

Pullback 3-1/2″

* Lightweight design

17922-99 & 17923-99

412 Series, 12.5in. Standard Spring Rate Rear Shock Absorbers - Chrome. Fits Sportster 2004-2021 - Progressive Suspension Handgrips & Throttle M8'25up Black To make the needle stableFeatures & 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