Progressive Suspension Series 412 without Covers Shock absorberRef : PRSU00155A / DS310044

Series 412 Shock Absorber without Covers by PROGRESSIVE SUSPENSION: a robust and straightforward shock absorber designed to replace or upgrade the rear suspension of Harley models from the Dyna lineage and touring/classic models. Built from steel with a gas-charged damping system and internal reservoir, it maintains a compact footprint while offering convenient preload adjustment.

• Adjustment: 5-position cam for quickly adjusting the spring preload according to your load and riding style.
• Finish: matte black, without caps (without covers) for a clean and discreet look.
• Duty: heavy duty — suitable for heavy touring and road use.
• Extended Length: 279.40 mm (11.00") measured centre to centre of eyelet.
• Material: steel; Damping Method: gas-charged (better consistency against heat).

Installation tips: check the clearance of the swingarm, belt/chain, and exhaust — a slightly longer or shorter shock absorber may alter the rake angle and handling. For XL models '86-'15, spacing or adjustment of the chain/belt guard may be necessary. Some 412 series shock absorbers are road-legal; consult the manufacturer's documentation to confirm.

Manufacturer Reference: 412-4045B. Common application examples: Harley Davidson FXDLS, FXDWG, FXDL (Dyna).