FOX 40 Float Factory GRIP X2 Fork - 203mm Travel - 29 inch wheel - Kashima Gold

Engineered for elite downhill and enduro racing, the all-new FOX 40 Float Factory GRIP X2 Fork is ...

Best current price£1,599.00from Team Cycles

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Team CyclesFox Racing Shocks Unisex Black Fox 40 Float Factory Grip X2 1.125 29Er Ta110 20Ta X 110Mm 52Mm Rake 203Mm Fork
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£1,599.00
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TredzFox Racing Shox Black Float Fact 29 Grip X2 Boost Forks Size 40
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Product Information

Full details

The FOX 40 Float Factory GRIP X2 Fork is engineered for elite downhill and enduro racers seeking unmatched control and stiffness. Its revolutionary GRIP X2 damper offers extensive tunability for dominating World Cup circuits. A key caveat is its highly specialized design, best suited for aggressive riding and advanced users.

All features

Model Part Number910-21-281
BrandFox Racing Shocks

Extended Product Information

FAQs

What is the main benefit of the GRIP X2 damper?

The GRIP X2 damper offers significantly increased tunability with a larger base valve and more valves, providing enhanced sensitivity, improved control, and a smoother ride feel, especially on rough descents.

How does the stiffness of the FOX 40 compare to the FOX 36?

The FOX 40 Float Factory GRIP X2 is substantially stiffer, offering 31% greater transverse shear stiffness, 9% greater fore-aft stiffness, and 20% greater torsional stiffness compared to the FOX 36.

Can I use this fork for trail riding?

While highly capable, the FOX 40 is primarily designed for aggressive downhill and enduro racing. Its long travel and robust construction make it less ideal for general trail riding compared to shorter-travel forks.

What tools are required for setup and basic maintenance?

You will need a high-pressure shock pump for air pressure adjustments. A basic Allen wrench set is useful for external adjustments. For internal service, specialized tools and lubricants are recommended.

How often should the fork be serviced?

FOX recommends regular lower leg service every 50 hours of riding and a full damper and air spring service annually or every 200 hours, whichever comes first. Consult the FOX Service Manual for details.

What does 'Kashima Gold' refer to on the upper legs?

Kashima coating is a hard anodization process that provides an ultra-smooth surface, improving durability, reducing friction, and enhancing the fork's responsiveness and overall performance.

Troubleshooting

Fork feels harsh or unresponsive to small bumps

Check air pressure and ensure it's set correctly for your weight. Clean stanchions and seals. Bleed lower legs to release any pressure buildup. Consider adjusting the GRIP X2 damper settings for increased sensitivity.

Fork is diving excessively under braking

Increase low-speed compression damping. Ensure the air spring pressure is adequate. Check for any air leaks or issues with the EVOL air spring.

Fork bottoms out too easily on large impacts

Increase air spring pressure or add volume spacers if applicable. Increase high-speed compression damping. Ensure rebound is not set too fast, which can cause the fork to 'pack down' and reduce its available travel.

Noise from the fork (e.g., knocking, squeaking)

Inspect all mounting bolts for tightness. Check headset adjustment. Listen carefully to pinpoint the source; squeaking might indicate a need for seal lubrication or service.

Pros and Cons

Pros

  • Unmatched control and stiffness for aggressive riding.
  • Extremely tunable with the GRIP X2 damper and 4-way adjustability.
  • Improved sensitivity and small bump compliance.
  • Designed for World Cup-level downhill and enduro racing.
  • Durable Kashima Gold upper leg finish.

Cons

  • Highly specialized, may be overkill for casual riders.
  • Advanced tuning options require rider knowledge.
  • Higher price point due to elite-level components.
  • Limited to specific wheel sizes (27.5" & 29") and travel (203mm).

Setup, Compatibility & Care

Setup:

  1. Air Spring Pressure: Adjust air pressure based on rider weight and riding style using a high-pressure shock pump. Refer to the FOX tuning guide for recommendations.
  2. Rebound Adjustment: Set low-speed rebound to prevent the fork from packing down after successive hits. Start with 8 clicks from fully open.
  3. Compression Adjustment: Tune high-speed and low-speed compression to manage brake dive and bottom-out resistance. Start with 8 clicks from fully open for both.

Compatibility:

  • Wheel Size: Compatible with 27.5" and 29" wheels.
  • Axle: Requires a 20TA x 110mm thru-axle (often included or sold separately).
  • Headset: Designed with an arch that increases head tube clearance, accommodating various head tube lengths and steerer tube designs. Offset options include 44mm.

Care:

  • Cleaning: Regularly clean the stanchions and seals with mild soap and water. Avoid abrasive cleaners.
  • Lubrication: Apply suspension lubricant to the upper and lower seals periodically to maintain smooth operation.
  • Pressure Release: Use the lower leg bleeders to release any built-up pressure after riding in varying temperatures or altitudes.
  • Service: Follow FOX's recommended service intervals for internal damper and air spring maintenance.

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