444 Series, 12.5in. Heavy Duty Spring Rate Rear Shock Absorbers - Chrome. Fits Dyna 1991-2017.

Features & Benefits:-

* 444 Series Shock.

* Frequency Sensing Technology (FST) dynamically adjusts Damping.

* Deflective disk valving ensures high performance ride control.

* Threaded pre-load adjusters for tool-less adjustment.

* Hand-built, tuned & dyno’d in Progressives facility.

Tech Tips:-

* 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 !