Description
Harley suspension geometry directly impacts handling, comfort, and safety—especially if your bike regularly carries near-maximum load capacity. The Progressive 412 Series delivers adjustable damping and preload tuning in a proven, cost-effective package, eliminating the vague feel of worn OEM shocks. With a five-position spring preload adjuster, you control your ride quality without specialized tools or fabrication.
Key Technical Features:
- Fitment: Harley FXD models
- Length: 14″ (center-of-eyelet to center-of-eyelet)
- Preload: Five-position cam adjuster
- Installation: Bolt-on
- Material: Heavy-duty construction
- Finish: Black powder coat
- TüV certification: Approved
- Setup note: May require chain/belt guard spacing on 1986–2015 XL models
- Performance consideration: Longer length provides slightly quicker steering geometry
- Clearance check: Confirm wheel travel compatibility before installation
- Load rating: Heavy Duty variant recommended for sustained maximum-capacity operation
- Manufacturer part number: 412-4085B
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