Progressive 412 Series shocks deliver consistent damping performance across all riding conditions with a durable double-wall steel body and nitrogen-charged, multi-stage velocity-sensitive valving. The five-position cam preload adjuster lets you tune for your weight and riding style, making these shocks a versatile upgrade for Harley-Davidson motorcycles.
Fits Harley-Davidson motorcycles. Verify your specific model and year compatibility before ordering.
Yes — the five-position cam preload adjuster lets you dial in spring preload for light, medium, or heavy riders.
Standard springs suit average-weight riders; Heavy-Duty springs provide firmer support for heavier riders or two-up riding.
Base models ship without covers. Optional show chrome covers are available separately for select applications.
High-pressure nitrogen keeps damping consistent across temperature changes and prevents aeration of the shock fluid under hard braking and acceleration.
WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669177 |
| WEIGHT | 10.3 lb |
The shocks seem super nice, but they are incredibly stiff. Turns out they’re 130/200 top to bottom. Would be nice to have an option to choose your spring rate. Couldn’t find it in the description either. Have them installed on a 1998 sportster 1200 by the way. I’m about 180lbs and they don’t move at all, my friend who weighs about 260 also said they were way to firm. Hope this helps.
