PROGRESSIVE SUSPENSION 412 Series Shocks — Heavy duty, rear, 279.40 mm (11.00 in) – 91-10, 12-17 Dyna, 01-02, 07-10 CVO

The 412 Series Shocks are designed specifically for Harley models and offer a simple, durable upgrade to your motorcycle's suspension performance. 🏍️

A five-position cam-style spring-load preload adjuster lets you easily dial in your ride, improving comfort and handling.

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.

Multiple style options are available, including full show-chrome or black covers, and chrome or black springs and end caps. Made in the USA. Heavy duty options are recommended for bikes ridden near the manufacturer's maximum load rating over 50% of the time. When installing on '86-'15 XL models, you may need to modify or space the chain/belt guard for clearance.

A shock slightly longer or shorter than stock may change head angle and steering: longer can quicken steering, shorter can slow it. Before purchasing, confirm wheel travel and clearances—swingarm/axle to exhaust, chain/belt guard, and tire contact. ⚙️