• 10 mm Shaft Clamp (for damper shaft and air shaft)

That’s it. No other clamps required, just clamp the flat square sections of the damper tube using soft jaws.

• Fox 4wt: damper + damper-side lowers
• Fox 20wt Gold: air-side lowers and positive air spring
• Slickoleum or SRAM Butter

• Fox GRIP X2 (2025) Service Manual
• Clamp Guide (Small Shafts)
• Clamp Guide (Large Shafts)

• Unscrew the compression assembly but do not disassemble it, just replace visible o-rings (IFP, Base Valve, Thread Seal).
• Service the 10 mm damper shaft from the rebound side: clamp → remove rebound cap → extract rebound rod.
• Remove sealhead, grease it, and reinstall from rebound side.
• If removing the mid-valve: use a 12 mm wrench on the lower piston stud.
• Do NOT open the HSR piston stack unless re-valving, requires special tools.
• Use a 28 mm chamferless socket for the compression cap.
• Self-bleed procedure:
  • Half-fill damper
  • Cycle shaft
  • Top off
    
  • Install compression cap while bleeding remaining air
• Torque compression cap to 16.9 Nm.
• Never fully insert damper shaft after bleeding, leave 2–3 cm from top or you’ll underfill the damper.

• Clamp ONLY flat sections, never the damper body.
• Do NOT open the compression assembly internally.
• The rebound cap is delicate, protect the detent ball and pull gently.
• Use red Loctite on the rebound adjuster stud during reassembly.
• Always fully depressurize the damper before opening.

⚠ This rebuild kit is intended for DIY home use. Always verify damper generation and year before ordering seals.

See our Terms of Service.