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 for Harley-Davidson models, making them a versatile suspension upgrade. Their double-wall steel construction and nitrogen-charged, multi-stage valving ensure a controlled and comfortable ride over various road conditions.
Transform your Harley-Davidson's ride quality with the Progressive 412 Series shocks. These shocks are engineered with a durable double-wall steel damper body and filled with a high-pressure nitrogen charge, providing consistent performance without fade. The multi-stage velocity-sensitive damping automatically adjusts to impacts, giving you a smooth and controlled feel across the board.
The Progressive 412 Series shocks empower you to customize your Harley-Davidson's suspension to match your personal riding style. The convenient 5-position cam-style preload adjuster lets you quickly dial in the spring stiffness to accommodate your weight, a passenger, or luggage. This adjustability ensures optimal comfort and improved handling, making every mile more enjoyable.
Can I adjust the preload myself?
Yes, the 5-position cam-style adjuster lets you dial in preload without tools. Simply rotate to match your weight and load.
What's the difference between standard and heavy-duty springs?
Standard springs are suitable for average riding loads, while heavy-duty springs are recommended for riders who frequently carry a passenger, heavy luggage, or prefer a stiffer ride.
Will these shocks work with my existing accessories?
These shocks are designed to be a direct replacement. For specific compatibility with your existing accessories or specific models, please confirm fitment using Shop by Bike.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614033 |
| WEIGHT | 9.7 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
