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 are engineered to deliver consistent damping and adjustable ride height for a range of Harley-Davidson cruisers. These shocks are built to smooth out bumps and reduce harshness, making them an ideal upgrade for riders seeking enhanced comfort and control. They provide a noticeable improvement over stock suspension, especially on long rides.
Transform your Harley Touring, Softail, or Dyna with the reliable performance of Progressive 412 Series shocks. These units feature durable double-wall steel construction and are nitrogen-charged, ensuring consistent damping performance across varying road conditions. The multi-stage velocity-sensitive valving adapts to the road, smoothing out imperfections and providing a more stable and controlled ride, whether you're cruising the boulevard or tackling twisty roads.
The 412 Series shocks empower you to fine-tune your suspension with a simple 5-position cam-style preload adjuster. This allows you to quickly dial in the ride to match your weight, a passenger, or any extra gear you're carrying, all without needing special tools. With available standard or heavy-duty progressive-rate springs, you can choose the optimal setup for your riding style, ensuring your Harley remains planted and comfortable mile after mile.
Can I adjust the preload myself?
Yes, the 5-position cam-style adjuster lets you dial preload without tools to match your weight and riding style.
Are these shocks rebuildable?
The input does not specify rebuild options for these shocks. For long-term serviceability, consider consulting the manufacturer's documentation.
Will these fit my specific Harley-Davidson model?
These shocks are designed for Harley Touring, Softail, and Dyna models. Verify fitment with your specific model year using our Shop by Bike tool before ordering to ensure compatibility.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-630121 |
| WEIGHT | 9.4 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.
