412 Series, 12in. Standard Spring Rate Rear Shock Absorbers – Black. Fits Sportster 2004-2021
Features & 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.
* Standard Spring Rates are recommended for riders that weigh under 110kg.
* Heavy Duty Spring Rates are recommended for riders that weigh over 110kg, or for riders who ride 2 up over 50% of the time.
* If you are purchasing longer or shorter suspension, confirm that changing your Suspension travel will not cause clearance issues.
* Performance Suspension Upgrades provide better handling through a Stiffer more controlled Ride.
Proudly Made by Progressive Suspension !