PROGRESSIVE SUSPENSION 412 Series Shocks — Rear, extended length 362 mm (14.25") – 57-85 Sportster

Designed specifically for Harley models, the 412 Series Shocks deliver a simple, durable and cost-effective suspension upgrade.

A five-position cam-style spring load preload adjuster lets you easily dial in your ride for improved comfort and control. ⚙️🔧

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

Some or all shocks listed are approved for road use; refer to the most recent certificate for current listing.

All shocks are measured center-of-eyelet to center-of-eyelet. Before purchasing or attempting to install shocks that differ from OEM length, confirm wheel travel and clearance to avoid exhaust, chain/belt guard, or tire contact.

When installing shocks on '86-'15 XL models, it may be necessary to modify or space the chain/belt guard to allow proper clearance. A slightly longer or shorter shock may alter head angle and steering response.

Heavy duty applications are recommended for bikes operated near the manufacturer's maximum load rating over 50% of the time. Made in the USA.