PROGRESSIVE SUSPENSION 412 Series Shocks — 305 mm (12") extended length, rear – 71-86 Big Twin, 79-85 Touring, 82-84, 86 FXR, 84 Police

The 412 Series shocks are designed specifically for Harley models, offering a simple, durable upgrade that improves suspension performance and value. 🏍️

A five-position cam-style spring-load preload adjuster lets you easily dial in your ride and adapt to different loads.

Multiple style options are available, including full show-chrome or black covers, and chrome or black springs and end caps.

All shocks are measured center-of-eyelet to center-of-eyelet. When installing shocks on '86-'15 XL models, modification or spacing of the chain/belt guard may be necessary to allow proper clearance.

A shock slightly longer than stock can alter head angle and provide somewhat quicker steering; a slightly shorter shock can result in somewhat slower steering.

Heavy duty applications are recommended for bikes operated near the manufacturer's maximum load rating over 50% of the time. Before purchasing or attempting to install shocks of a different length than OEM, confirm wheel travel can change without clearance issues such as swingarm/axle to exhaust contact or chain/belt guard or tire contact.

Made in the USA. 🔧