- Frequency Sensing Technology (FST) allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
- Standard or heavy duty spring rate and black or chrome finish
- Adjust spring pre-load by hand, no special tool needed
- Limited Lifetime Warranty & made in USA
- Deflective disc valving
- Progressive rate spring
Upgrade your Harley-Davidson Tri-Glide with the Progressive 444 Series shocks, designed to deliver an exceptional riding experience. Featuring proprietary Frequency Sensing Technology (FST), these shocks automatically adjust damping in real-time to adapt to road conditions, whether you're encountering small bumps or larger impacts. This dynamic adjustment ensures a smooth and comfortable ride by evenly distributing oil through precision ports, providing superior shock absorption and ride quality. The shocks include a convenient top mount threaded preload adjuster, allowing you to fine-tune spring pre-load easily by hand without tools, ensuring optimal performance tailored to your preferences.
Constructed with a durable black finish and available in standard, heavy-duty, or super heavy-duty configurations, the 444 Series shocks are suitable for riders of varying weights and riding styles. The progressive rate spring and deflective disc valving work together to enhance ride comfort and handling, absorbing shocks efficiently and improving stability. These shocks are compatible with multiple Harley-Davidson models, including the Tri-Glide Ultra Classic and Street Glide Trike, making them a versatile upgrade for touring and cruising bikes.
Manufactured in the USA and backed by a limited lifetime warranty, the Progressive 444 Series shocks combine advanced technology with quality craftsmanship. Whether you ride for leisure or long-distance touring, these shocks are engineered to improve ride quality, handling, and rider confidence. Easy to install and adjust, they are a reliable choice for riders seeking performance upgrades that stand the test of time.
Features:
- Frequency Sensing Technology (FST): Automatically adjusts damping based on bump frequency for optimal ride comfort
- Adjustable spring preload: Fine-tune spring tension by hand without special tools
- Multiple configurations: Standard, Heavy-duty (250+ lbs.), and Super Heavy Duty (Touring models only)
- Progressive rate spring: Enhances ride smoothness and handling
- Deflective disc valving: Provides consistent damping performance
- Durable black finish: Corrosion-resistant and aesthetically appealing
- Made in USA: Quality craftsmanship backed by a limited lifetime warranty
