2011-2025 25/3500 HD 0-1" Fox 2.5 HTO Performance Series Rear Shock (KRS4009)

FOX's new Hydraulic Top Out (HTO) technology offers usable position-sensitive rebound damping control on and off the pavement. HTO reduces harsh top-outs and increases comfort by forcing shock oil through a secondary shim stack to slow down shock shaft speed; HTO is particularly beneficial after installing heavier, aggressive tires and applications lifted higher than OEM specification.

• 2.5” Impact extruded 6061-T6 aluminum shock body
• Type II clear-anodized body plating
• High-flow velocity-sensitive damping
• 5/8” hard chrome shaft
• Internal floating piston (IFP)
• Hydraulic Top Out (HTO) piston

Specs

• Collapsed (in): 17.34"
• Extended (in): 26.02"