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 smooth, consistent damping through a double-wall steel body with nitrogen-charged, multi-stage velocity-sensitive valving. A five-position cam-style preload adjuster lets you customize the ride for your weight and riding style, making these shocks a durable upgrade for any Harley-Davidson. Experience improved control and comfort on every ride.
Transform your Harley-Davidson's ride with Progressive 412 Series shocks, engineered for superior performance and adjustability. These shocks are a significant step up from standard factory units, providing a more stable and responsive feel across various road conditions. The robust construction ensures longevity, giving you peace of mind and consistent performance for years to come.
The ability to quickly adjust preload on the 412 Series shocks means you can fine-tune your Harley for solo runs, two-up cruising, or loaded touring. This customization helps maintain proper geometry and prevents bottoming out, leading to a safer and more enjoyable ride. Pair these shocks with a quality front suspension upgrade for a balanced and high-performing V-twin setup.
How do I adjust the preload on these shocks?
The 5-position cam-style adjuster lets you dial preload up or down to match your weight and riding preference without special tools.
Will these shocks fit my specific Harley-Davidson model?
These shocks fit many Harley-Davidson motorcycles. Please confirm specific model compatibility and mounting points using our Shop by Bike tool before ordering.
Are there different spring options available?
Yes, these shocks are available with either progressive or standard rate spring options to suit different rider weights and riding styles.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614012 |
| WEIGHT | 10.9 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.
