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 provide a smooth, tunable ride for Harley-Davidson motorcycles, combining a durable double-wall steel body with nitrogen-charged, multi-stage velocity-sensitive damping. Their five-position preload adjustment allows you to dial in the suspension to perfectly match your weight and riding style, ensuring a superior experience on every journey.
Elevate your Harley-Davidson's performance and comfort with the Progressive 412 Series shocks. These shocks are engineered with a robust double-wall steel construction for maximum durability and feature advanced nitrogen-charged, multi-stage velocity-sensitive damping. This combination ensures consistent, controlled suspension action across a wide range of road conditions, making your ride smoother and more predictable.
The 412 Series shocks empower Harley-Davidson riders to fine-tune their suspension with ease. The accessible 5-position cam-style adjuster lets you quickly set preload to match your weight, riding preference, or the demands of a passenger and luggage. This adjustability is crucial for achieving optimal handling and comfort, ensuring your V-twin performs at its best. For a truly integrated suspension upgrade, consider pairing these shocks with a high-performance fork spring kit.
How do I adjust the preload?
The 5-position cam-style adjuster allows you to easily dial preload up or down to match your weight and riding preference without needing special tools.
Are these shocks rebuildable?
The Progressive 412 Series shocks are designed for longevity and consistent performance, but specific rebuildability details should be confirmed with the manufacturer or by checking the product documentation for your exact model.
Will these shocks change the ride height of my Harley-Davidson?
While the preload adjustment can slightly affect ride height, these shocks are designed as direct replacements. Always confirm the specific length and fitment for your year and model using the 'Shop by Bike' tool to ensure proper ride height.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669163 |
| WEIGHT | 9.8 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.
