2018-2026 Harley-Davidson Softail Fox IFP-QSR Rear Shock 13.5 in Standard Spring

Fox Street Performance IFP-QSR rear shock for 2018-up Harley-Davidson Softail (Milwaukee-Eight) models. Replaces the single under-seat mono-shock with a gas-charged Fox IFP monotube and a tool-free three-position Quick Switch Rebound (QSR) adjuster.

Softail models use a single rear mono-shock — this listing is for one shock, which is the complete rear suspension replacement for the bike.

Features

• Three-position Quick Switch Rebound (QSR) adjustment, no tools required
• Gas-charged monotube with internal floating piston (IFP) keeps nitrogen and oil separated for fade-free damping
• 6061-T6 aluminum body with Type III hard-anodized finish
• Low-friction, super-finished hard chrome shaft
• Advanced high-flow, deflective-disc velocity-sensitive damping
• Fully rebuildable and re-valvable
• Matte black spring with black-anodized preload ring

What's Included

• One rear mono-shock absorber

Installation Notes

Direct replacement for the factory mono-shock; no modifications required. The 13.5 in length sits slightly taller than the stock fitment — verify suspension travel clearance before riding.

Specifications

• Height: 13.5 in
• Extended length: 13.50 in
• Travel: 2.50 in
• Spring: Standard