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 consistent damping and adjustable ride height for Harley-Davidson motorcycles. Double-wall steel construction with nitrogen charging and multi-stage velocity-sensitive valving provides smooth suspension performance across a range of rider weights. Enjoy a more predictable and comfortable ride on your V-twin.
Transform your Harley-Davidson's ride with Progressive 412 Series shocks. These shocks are engineered for riders seeking a significant improvement in both comfort and control. Featuring a rugged double-wall steel damper body and a high-pressure nitrogen charge, they deliver consistent damping without fade, even during demanding rides. The multi-stage velocity-sensitive valving ensures that the shocks react appropriately to all road conditions, from small bumps to large dips.
The Progressive 412 Series shocks make it easy to customize your Harley-Davidson's suspension. The accessible 5-position cam-style preload adjuster allows you to quickly adjust the firmness to suit your specific needs, whether you're riding solo, with a passenger, or carrying extra gear. This adjustability ensures optimal handling and comfort, making every mile more enjoyable. For a comprehensive suspension upgrade, consider pairing these rear shocks with a Progressive front fork kit.
Can I adjust the preload myself?
Yes, the 5-position cam-style preload adjuster lets you dial in ride height and firmness without special tools. Simply rotate to match your weight and riding style.
What's the difference between standard and heavy-duty springs?
Heavy-duty springs support riders and passengers with higher combined weights, or those carrying significant luggage, preventing the bike from bottoming out. Standard springs are suitable for lighter loads.
Will installing these shocks require a professional mechanic?
While installation can be done by a competent home mechanic, we always recommend consulting your bike's service manual or a professional technician to ensure correct and safe installation.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614018 |
| WEIGHT | 9.1 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
