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 gas-charged, multi-stage velocity-sensitive design. Housed in a durable double-wall steel body, these shocks are built to perform.
Experience a noticeable improvement in ride quality with Progressive 412 Series shocks. These units provide consistent damping thanks to their high-pressure nitrogen gas charge and multi-stage velocity-sensitive valving. Whether you're cruising or pushing your V-twin, the 412 Series offers a straightforward upgrade that enhances control and comfort on any Harley-Davidson.
The 412 Series shocks are designed for riders who demand better handling without unnecessary complexity. The accessible cam-style preload adjuster allows you to fine-tune the ride height and stiffness to match your weight or riding conditions, ensuring optimal performance whether you're solo or two-up. These shocks are a solid foundation for any rider looking to elevate their Harley-Davidson's suspension.
Do these shocks require a special tool for adjustment?
No, the five-position cam preload adjuster allows you to fine-tune ride height and stiffness without the need for special tools.
Will these shocks fit my specific Harley-Davidson model?
These shocks fit a wide range of Harley-Davidson models. Please use our Shop by Bike feature to confirm the correct spring rate and mounting configuration for your specific year and model before ordering.
What is the benefit of gas-charged shocks?
Gas-charged shocks help prevent fluid cavitation, providing more consistent damping performance and reducing fade during extended use compared to non-gas shocks.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669149 |
| 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.
