FOX 40 Factory GRIP X2 Fork - 29er - 110mm - 52mm Rake - 203mm

The FOX 40 Factory GRIP X2 1.125 29er 20TA x 110mm 52mm Rake 203mm Tapered Fork in Black combines ...

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TredzFox Racing Shox Black Float Factory Grip X2 Boost 29" Fork Size 40
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Product Information

Full details

The FOX 40 Factory GRIP X2 Fork is designed for elite gravity and downhill riders seeking maximum speed, control, and consistency. Its key benefit lies in its completely reworked chassis, damper, and air spring system, offering improved support, smoother response, and better tracking on rough terrain. A potential caveat for some users might be its specialized nature, focused primarily on extreme downhill applications.

All features

Model Part Number910-21-410
BrandFOX

Extended Product Information

FAQs

What is the primary advantage of the GRIP X2 damper?

The GRIP X2 damper offers increased support during heavy impacts while maintaining a smooth, controlled stroke, improving confidence and consistency on demanding descents.

How does the GlideCore air spring improve performance?

The GlideCore air spring provides controlled flex in multiple directions, allowing the fork to better track uneven terrain, reduce binding, and minimize rider fatigue.

What type of riding is this fork best suited for?

This fork is engineered for elite gravity and downhill riding, focusing on maximum speed, control, and consistency on challenging terrain.

How do I adjust the air spring pressure?

Air spring pressure is adjusted using a standard shock pump on the air-side top cap, which has a splined interface for easy access with a cassette tool.

Can I use larger brake rotors with this fork?

The fork is designed to accommodate up to a 203mm maximum brake rotor.

What is the recommended tire size for this fork?

The fork is compatible with tires up to 2.5 inches wide.

Does this fork come with an axle?

The fork features a DH Boost 20mm Floating Axle system, which is typically included.

Troubleshooting

Fork feels harsh on small bumps

Ensure correct air pressure is set. Check GRIP X2 low-speed compression settings; a slightly more open setting may improve small bump sensitivity. Verify that bypass channels are clear for proper oil flow.

Fork bottoms out too easily

Increase air pressure in the air spring. Add volume spacers if available. Adjust high-speed compression to provide more ramp-up towards the end of travel. Ensure the MCU bumper is properly seated.

Fork feels 'sticky' or inconsistent

Clean fork stanchions and seals thoroughly. Check for any debris or damage to the seals. Ensure lower leg bleeders have been used to release pressure. Consider a lower leg service if issues persist.

Noise from the fork during travel

Check for loose bolts on the axle, crown, or steerer tube. Listen for internal noises; this may indicate a need for servicing. Air spring noise is normal, but excessive clunking could indicate an issue.

Pros and Cons

Pros

  • Exceptional downhill speed and control
  • Improved support and smooth small bump compliance
  • Enhanced tracking and reduced rider fatigue
  • Durable construction with optimized weight
  • Easier setup and maintenance

Cons

  • Primarily designed for extreme downhill use
  • May be overkill for less aggressive riding styles
  • Higher price point associated with factory-level components

Setup, Compatibility & Care Instructions

Setup:

  1. Axle Installation: Ensure the 20mm floating axle is installed correctly according to manufacturer guidelines to maintain wheel alignment and suspension performance.
  2. Air Spring Adjustment: Use a standard shock pump to set the desired air pressure based on rider weight and terrain. The air-side top cap features a splined interface compatible with common cassette tools for easy access.
  3. Damper Settings: Adjust the GRIP X2 damper's low-speed and high-speed compression and rebound settings to fine-tune ride feel and performance. Consult the owner's manual for detailed tuning recommendations.

Compatibility:

  • Wheel Size: Designed for 29er wheels.
  • Axle Spacing: Features DH Boost 20mm spacing.
  • Brake Mounts: Compatible with 203mm max brake rotors.
  • Tire Clearance: Accommodates tires up to 2.5 inches wide.
  • Steerer Tube: 1.125" straight steerer tube.

Care:

  • Cleaning: Regularly clean the fork stanchions and seals with a soft, damp cloth to remove dirt and debris. Avoid abrasive cleaners.
  • Pressure Relief: Periodically use the updated bleeders to release any built-up air pressure in the lower legs, especially after long descents or temperature changes.
  • Service: Follow the recommended service intervals for lower leg lubrication and full damper/air spring service to maintain optimal performance and longevity.

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