PROGRESSIVE SUSPENSION 412 Series Shock - 12" - Heavy Duty - Black - H-D 412-4050B

Stock suspension geometry limits your Harley's handling potential and comfort, especially if you regularly ride at or near the manufacturer's load rating. The Progressive 412 Series delivers a cost-effective suspension upgrade with genuine tuning capability, letting you dial in preload across five positions to match your bike's setup and riding style. Built for durability and designed specifically for H-D models, these shocks transform your ride without breaking the bank.

Key Features & Specifications:

• 12" length, center-eyelet to center-eyelet
• Heavy-duty valving for sustained load
• Five-position cam preload adjuster
• Harley-specific fitment
• CNC-machined components
• TüV approved
• Bolt-on installation
• Black finish
• MPN: 412-4050B

Important Installation Notes: When fitting to 1986–2015 XL models, chain/belt guard modification or spacing may be required for proper clearance. Length variations will slightly alter head angle and steering response—confirm wheel travel and swingarm/exhaust clearance before purchase. Heavy-duty applications are recommended for bikes operated at maximum load capacity over 50% of the time.