. FOX Street Performance Rear Mono Shock for Harley M8 Softail – Bulletproof Cycles
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FOX Street Performance Rear Mono Shock for Harley M8 Softail

  • $699.00


The new FOX IFP-QSR rear shock is designed to give you the comfort and control needed to keep you (and a passenger) happily eating up the miles and taming the twists and turns. With an internal floating piston (IFP) to separate the nitrogen gas from the shock oil, this shock will maintain damping control no matter how long you ride. The main piston valving has been developed and extensively ride tested in a full range of conditions to work in harmony with the new three-position Quick Switch Rebound (QSR) settings. Three distinct settings make it easy to dial in the correct rebound for different riding situations: comfort on bumpy backroads, “any road” balance of control and comfort, and a “glued to the asphalt” feeling on smooth twisty roads. FOX’s IFP-QSR three-position rebound adjustable design—combined with vehicle-specific damping and linear spring rates—gives you a confident connection to the road while soaking up the bumps mile after mile.

Combine the FOX STREET PERFORMANCE IFP-QSR REAR SHOCK with the new FOX GRIP STREET PERFORMANCE FORK CARTRIDGE KIT FOR HARLEY M8 SOFTAIL to get the best possible ride quality with the ultimate in adjustability for comfort and control.


  • Model-specific optimized ride tune
  • QSR: 3-position quick switch rebound adjustment
  • Spring preload setting guide marks
  • Gas-charged mono-tube with internal floating piston (IFP)
  • 2-inch 6061-T6 aluminum type III hard-anodized body
  • Fully rebuildable and re-valvable
  • Advanced high-flow, deflective disc velocity-sensitive damping
  • 5/8-inch diameter low friction, super-finished hard chrome shaft
  • Matte black spring and black-anodized preload ring


  • Spring preload
  • QSR: 3-position quick switch rebound adjustment

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