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.
Achieve smooth, consistent suspension performance on your Harley-Davidson with Progressive 412 Series shocks. These units feature a durable double-wall steel body and nitrogen-charged damping for reliable control. A five-position cam-style preload adjuster allows you to precisely tune the ride for your weight and preferred aesthetic.
The Progressive 412 Series shocks are a direct path to a significantly improved ride on your Harley-Davidson. Designed with high-pressure nitrogen gas charging and multi-stage velocity-sensitive damping, these shocks provide consistent performance that resists fade, even on demanding rides. You'll feel the difference in how your V-twin handles bumps, corners, and varying road surfaces, gaining greater confidence and comfort.
The beauty of the Progressive 412 Series shocks lies in their adjustability. With the integrated five-position cam-style preload adjuster, you can easily fine-tune the spring stiffness to accommodate a solo ride, a passenger, or any additional luggage. This adaptability ensures your Harley-Davidson's suspension is always optimized for your current load and riding style, delivering a balanced and comfortable experience.
Can I adjust the preload on these shocks myself?
Yes, the 5-position cam-style adjuster on the Progressive 412 Series shocks allows you to easily change the spring preload to match your weight, passenger, and riding style without needing special tools.
Will these shocks improve handling when riding with a passenger?
Absolutely. The ability to adjust the preload means you can increase the spring stiffness to compensate for the added weight of a passenger and luggage, maintaining proper ride height and improving stability and handling.
Are these shocks a direct bolt-on replacement for my Harley-Davidson?
Progressive 412 Series shocks are designed for specific Harley-Davidson models. We recommend verifying your specific year and model with our Shop by Bike tool or Progressive's fitment chart before ordering to ensure correct application, as shock applications vary by frame and suspension design.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-669188 |
| WEIGHT | 11.0 lb |
I bought these for my '06 FLHR and could not be happier. I'm 6' 275 lbs so I went with the heavy duty option. Took about 30 min. to change shocks and the ride has improved considerably, took the jolt out of hitting heaves in the road.
While removing the rear wheel for some other service they just quite literally fell apart in two pieces leaving me with a garage floor full of suspension oil and one unusable shock. Spoke with their warranty rep who told me in so many words that its not their problem. Dissapointed to say the least.
So far loving these, the ride is much smoother and an awesome look. Going for the 12" was a good choice, raised it but not too much.
Just changed from my stock Harley to the 13-in and what a difference it made. Bike handles better and rides better
