Progressive Suspension Series 412 without Covers Shock absorberRef : PRSU00027A / DS310057

Series 412 Shock Absorber without Covers — PROGRESSIVE SUSPENSION (ref. 412-4024B)

Designed to fit a wide range of Harley models, the Series 412 shock absorber offers a simple and robust solution to enhance rear-end performance without breaking the bank. Gas-charged with an internal reservoir and steel body, it provides a modern feel while maintaining a sleek black finish. The 5-position cam preload adjustment allows for easy handling adjustments based on load and type of use.

• Usage: Vintage/Classic, Roadster, Touring
• Function: Standard, gas-charged, internal reservoir
• Extended Length: 362 mm (14.25") measured centre to centre of eyelet
• Material: Steel — black finish
• Adjustment: 5-position spring preload (cam)

A few precautions: some models in the range are road-legal — check the latest certificate for compliance. On Sportster XL ('86–'15), installation may require spacing or modifying the chain/belt guard to ensure clearance. A shock absorber that is slightly longer or shorter than the original may alter the rake angle and thus the steering responsiveness; before installation, check the travel and clearances (swingarm, exhaust, chain/tyre).