PROGRESSIVE SUSPENSION 444 Series Shocks — 330 mm (13") , Chrome, Heavy Duty – 84-85 Big Twin, 80, 83-85, 87-88, 94, 96-07, 10, 12-17, 19-26 Touring, 08-12, 14, 16, 18, 20-23, 25-26 CVO, 82-90 FXR, 77-92, 04, 09-10, 13, 15, 18-20 Sportster

444 Series Shocks deliver a smoother, more controlled ride by sensing bump frequency and automatically adjusting damping. 🚀

Key features:

• All-new Frequency Sensing Technology (FST) that adapts damping to bump frequency
• Deflective disc valving for consistent response
• Hand-adjustable preload—no special tools required
• Progressive-rate spring and high-pressure gas charge for repeatable performance
• Made in the USA

Note: Slight length differences from stock can affect head angle and steering. Before installing non‑OEM length shocks, confirm wheel travel and clearances to avoid contact with swingarm, exhaust, chain/belt guard, or tire. For heavy duty use, choose applications that suit sustained loads over 50% of the time.