PROGRESSIVE SUSPENSION 412 Series Shocks — 320 mm (12.60"), heavy-duty, rear – 91-17 Dyna, 01-02 CVO

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

A five-position cam-style spring preload adjuster lets you quickly dial in ride comfort and response.

All shocks are measured center-of-eyelet to center-of-eyelet; when installing on '86-'15 XL models it may be necessary to modify or space the chain or belt guard to ensure proper clearance.

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

For motorcycles regularly operated near the manufacturer's maximum load, choose versions rated for higher loads and confirm wheel travel and clearances before changing from OEM length. 🏍️