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 shocks deliver smooth, consistent damping through double-wall steel construction with nitrogen-charged, multi-stage velocity-sensitive valving. A five-position preload adjuster lets you tune the ride for your weight, allowing you to customize your Harley-Davidson's suspension feel. Enhance your comfort and control on every journey.
Experience a superior ride on your Harley-Davidson with Progressive 412 Series shocks. These units are built with a robust double-wall steel damper body and feature a high-pressure nitrogen gas charge to ensure consistent, fade-free performance. The multi-stage velocity-sensitive damping system intelligently adapts to varying road conditions, providing a plush feel over minor bumps and firm control through larger impacts.
The Progressive 412 Series shocks offer riders the flexibility to fine-tune their Harley-Davidson's suspension. With the quick-adjust 5-position preload cam, you can easily set the sag and firmness to match your specific riding needs, whether you're solo, riding two-up, or carrying extra gear. These shocks are a straightforward way to elevate your V-twin's handling and comfort, making long rides more enjoyable and spirited riding more confident.
What's the difference between standard and heavy-duty springs?
Standard springs suit lighter riders and normal loads, providing a comfortable ride. Heavy-duty springs are designed for heavier riders, two-up riding, or carrying substantial luggage without bottoming out.
Do these shocks require any special tools for installation?
Installation typically requires basic hand tools. However, we always recommend consulting a service manual or professional for proper installation to ensure safety and optimal performance.
Will these shocks improve handling in corners?
Yes, by providing more consistent damping and proper spring rates, the Progressive 412 Series shocks can significantly improve cornering stability and overall handling compared to worn-out or inadequate stock units.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614017 |
| WEIGHT | 11.1 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
