Progressive Suspension Cartridge Fork springsRef : PRSU00003A / 04140401

Progressive Suspension Monotube Cartridge (ref. 31-2511) — Completely replaces the internal components of the fork to transform a conventional dual-shock fork into a high-performance monotube assembly. Designed for road and touring, this cartridge aims to optimise front stability, cornering grip, and bottoming control without requiring modification of the original fork.

• Brand: PROGRESSIVE SUSPENSION
• Type: Fork cartridge, monotube style
• Tube diameter: 45.00 mm (1.77")
• Adjustment: Standard height
• Colour/finish: Black / Chrome
• Installation: Replaces all internal parts — bolt-on without modification

Ideal for heavy tourers and GTs, this cartridge provides your fork with a more consistent response and increased control on winding roads or during long stages. The monotube design favours a more uniform dissipation of damping forces, useful for riders seeking better handling precision without compromising comfort.

Common compatibilities: HONDA GL 1800 ABS Goldwing (SC79) models 2018–2019 (Tour, Tour Navi, Tour Deluxe). Check the fork diameter and manufacturer specifications before installation.