PROGRESSIVE SUSPENSION 412 Series Shocks — Rear, 343 mm (13.50") – 85 Big Twin, 80, 83-06 Touring, 00-05 CVO, 82-94 FXR, 77-22 Sportster

Designed specifically for Harley models, the 412 Series offers a simple, durable upgrade that improves suspension performance while remaining cost effective. 🔧

The five-position cam-style spring preload adjuster lets you quickly dial in your ride to match load and road conditions.

Available in multiple styles — full show-chrome or black covers, and with either chrome or black springs and end caps — so you can match the look of your bike.

All shocks are measured center-to-center; confirm clearance before fitting shocks of a different length and follow fitment notes for '86-'15 XL models and other applications.

Heavy duty options are recommended for bikes operated near the manufacturer's maximum load rating more than half the time, and note that small changes in shock length can slightly alter head angle and steering feel.