Progressive Suspension has focused exclusively on American V-twin suspension since 1982, and its Monotube fork cartridges and 400/970/970G shock series are among the most common upgrades on baggers and Softails. For most riders the stock rear shock is the single worst part on the bike — this is the fix.
Progressive 412 Series shocks deliver suspension tuning without the premium price tag. Riders gain consistent damping across varying road surfaces, thanks to a time-tested double-wall steel design and nitrogen-charged, multi-stage velocity-sensitive valving.
Dial in your ride with a five-position cam-style preload adjuster, letting you match spring tension to your weight and riding style. These shocks are engineered for durability and performance, offering a significant upgrade over stock units.
The 412 Series is a proven solution for riders looking to improve their Harley-Davidson's handling and comfort without breaking the bank. Whether you're cruising solo or loaded up for a long haul, the adjustable preload allows you to quickly adapt your suspension for optimal performance. Confirm fitment for your specific model year with our Shop by Bike tool.
Can I adjust the preload myself?
Yes, the 5-position cam-style preload adjuster is designed for easy, tool-free adjustment, allowing you to quickly dial in the spring tension to your preference.
Will these shocks improve my ride quality?
The Progressive 412 Series shocks are engineered to provide more consistent damping and improved handling over stock, enhancing comfort and control on various road conditions.
Do these shocks fit all Harley-Davidson models?
The 412 Series offers multiple applications across the Harley-Davidson lineup. We recommend using our Shop by Bike tool to confirm exact year and model compatibility before ordering.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669131 |
| WEIGHT | 9.9 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.
