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 are engineered to deliver consistent suspension performance for your Harley-Davidson. Featuring a rugged double-wall steel body and advanced multi-stage velocity-sensitive valving, these shocks provide superior road feedback and comfort. The nitrogen-charged design and a 5-position preload adjuster allow you to precisely dial in your ride quality for any load, from light solo cruising to heavy touring.
Elevate your Harley-Davidson's ride with the Progressive 412 Series shocks. These units are designed to absorb road imperfections and maintain stability, offering a significant upgrade over stock suspension. The internal valving responds dynamically to different road conditions, ensuring a smooth ride on the highway and controlled performance through the twisties. This makes them a versatile choice for any rider.
Whether you're embarking on a cross-country tour or just enjoying a weekend ride, the Progressive 412 Series shocks are built to handle it. Their robust design and tuneable characteristics ensure that your Harley-Davidson remains comfortable and composed, regardless of the demands you place on it. Consider these shocks an investment in both performance and rider enjoyment, pairing perfectly with a front fork upgrade for a complete suspension overhaul.
Can I adjust the preload on these shocks?
Yes, the 5-position cam-style adjuster lets you change preload to match your weight and riding style without tools, making adjustments quick and easy.
Are these shocks compatible with my specific Harley-Davidson model?
The Progressive 412 Series is designed for various Harley-Davidson motorcycles. Please use our Shop by Bike tool to verify the exact fitment for your specific year and model before ordering.
What are the benefits of nitrogen-charged shocks?
Nitrogen charging helps to prevent cavitation and aeration of the shock oil, maintaining consistent damping performance even under heavy use. This translates to a more stable and predictable ride.
| BRAND | Progressive |
| TYPE | Shocks and Struts |
| SKU | T14-614000 |
| WEIGHT | 14.9 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.
