444 Series, 12.5in. Heavy Duty Spring Rate Rear Shock Absorbers - Black. Fits Dyna 1991-2017. - Progressive Suspension Caliper Rebuild Kits - OEM If your motor sees any

If your motor sees any of these we recommend stepping up to S&S Chrome Moly Head Studs

* Replaces OEM # 43001-06

* Heat treated to insure maximum strength

* Will move the driver 2″ closer to the handlebars

444 Series, 12.5in. Heavy Duty Spring Rate Rear Shock Absorbers - Black. Fits Dyna 1991-2017. - Progressive Suspension Caliper Rebuild Kits - OEM If your motor sees anyFeatures & 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 & dynod 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