PROGRESSIVE SUSPENSION 412 Series Shocks — 279.40 mm (11.00"), rear, black or chrome – 71-86 Big Twin, 79-85 Touring, 82-84, 86 FXR, 84 Police

The 412 Series Shocks are designed specifically for Harley models and deliver a simple, durable upgrade to suspension performance. ⚙️

A five-position cam-style spring load preload adjuster lets you easily dial in your ride for everyday comfort or heavier loads.

All shocks are measured center-of-eyelet to center-of-eyelet; some installations on '86-'15 XL models may require minor modification or spacing of the chain/belt guard for proper clearance.

A shock slightly longer or shorter than stock can alter head angle and steering response; heavy duty applications are recommended when operating near the manufacturer's maximum load frequently.

There are multiple style options, including full show chrome or black covers and chrome or black springs and end caps; some listings are approved for road use—refer to the most recent certificate. Made in the USA. 🇺🇸