The Fox 34 Float Factory GRIP2 fork is engineered for aggressive trail riders seeking superior damping control, adjustability, and responsiveness. As part of Fox’s high-end Factory series, the 34 Float with GRIP2 damper stands out with its advanced technology, precise tunability, and exceptional trail handling. This guide provides a comprehensive look into installing, adjusting, maintaining, and optimizing the Fox 34 Float Factory GRIP2 fork for peak trail performance.
Tools Required
- 5mm and 6mm Allen keys [paid link]
- Torque wrench [paid link] (2–20 Nm range)
- Suspension pump
- Isopropyl alcohol and clean rags
- Shock oil and Fox-specific suspension grease
- Fork crown race setting tool
- Star nut installation tool (if applicable)
Installation Guide for the 34 Float Factory GRIP2
Installing the Fox 34 Float Factory GRIP2 requires attention to detail to ensure proper setup and safe function. Begin by confirming steerer tube length compatibility with your bike’s head tube and headset configuration. If the fork is brand new, the steerer tube will need to be cut and a star nut installed.
The crown race must be correctly seated on the steerer base, followed by installation of the fork through the head tube. Use a torque wrench [paid link] to tighten stem bolts to manufacturer specifications. Mount the brake caliper using the appropriate post-mount hardware and ensure the front wheel axle is torqued correctly. Complete the installation by aligning the fork’s front and rear-facing cable guides to avoid contact during compression.
Adjusting Air Spring and Sag Settings
To tune the 34 Float Factory GRIP2 for your weight and riding style, begin by setting the air pressure in the EVOL air spring. Fox provides a baseline chart based on rider weight, but fine-tuning based on sag is essential. The target sag is approximately 15–20% of the fork’s total travel.
With full riding gear on, sit on the bike in a neutral position. Use the fork’s o-ring to measure travel after compressing and slowly returning the fork. Adjust pressure incrementally using a suspension pump until the correct sag is achieved. Use the air bleed valve if necessary to fine-tune.
GRIP2 Damper Compression and Rebound Adjustments
The GRIP2 damper features high- and low-speed compression and rebound circuits for maximum control. Each adjuster operates independently, allowing precise behavior over different terrain.
Start with the factory baseline: 8 clicks out from closed for each circuit. Increase low-speed compression to reduce fork dive on climbs and braking. Increase high-speed compression to manage harsh landings and repeated hits. Rebound should be set fast enough to recover before the next bump but slow enough to avoid pogo-like feedback. Fine-tune over several rides to match your trail conditions and riding preferences.
Routine Maintenance Schedule and Procedures
Regular maintenance is critical for preserving the performance and longevity of your Fox 34 Float Factory GRIP2. Basic service, including lower leg lubrication and inspection, should be performed every 30 hours of riding. Full damper and air spring service is recommended every 125 hours or yearly, whichever comes first.
To perform a lower leg service, remove the fork from the bike, release air pressure, and remove the lower legs using a 10mm socket and soft mallet. Clean thoroughly with isopropyl alcohol. Replace foam rings and apply fresh suspension grease. Add the specified volume of bath oil and reassemble with correct torque specs. Always cycle the fork post-service to ensure internal lubrication.
Common Set-Up Issues and Troubleshooting Tips
Improper fork behavior is often the result of incorrect pressure, rebound, or compression settings. If the fork feels harsh, check for over-inflation and excessive high-speed compression. If it’s diving excessively, increase low-speed compression and verify sag.
A noisy damper or inconsistent performance may indicate contamination or lack of service. If your GRIP2 damper feels sticky or slow to respond, it might need a damper bleed or oil change. Address any oil leakage immediately, as it could indicate damaged seals or worn stanchions.
Customization and Performance Optimization
Advanced riders can benefit from further tuning, such as adjusting volume spacers inside the air spring. Reducing spacers increases linearity, ideal for smoother trails. Adding spacers increases progression, better for aggressive riding and big hits.
Pairing your fork setup with frame geometry and rear suspension is key. Riders can also experiment with bar height, stem length, and tire pressure to complement fork behavior. Using telemetry apps or data acquisition tools may enhance setup precision for racers and enthusiasts.
Compatibility with Other Drivetrain and Suspension Components
The Fox 34 Float Factory GRIP2 fork is designed around a 44mm or 51mm offset, Boost axle spacing (15x110mm), and tapered steerer tube. It integrates seamlessly with most modern trail frames and 29-inch or 27.5-inch wheels depending on the variant.
The GRIP2 damper does not require any electronic interface, making it compatible with both mechanical and wireless drivetrains. Brake rotor sizes from 180mm up to 203mm can be mounted with appropriate adapters. For best results, use with Fox or compatible rear shocks to maintain front-rear suspension balance.
Comparison with Similar Forks in the Fox Lineup
Compared to the Fox 34 Performance Elite and Rhythm models, the Factory GRIP2 version offers the highest level of damper adjustability and superior internal coatings. While the Rhythm provides a budget-friendly option and the Performance Elite omits the Kashima coating, only the Factory GRIP2 gives riders full independent control of both high- and low-speed compression and rebound.
When compared to the 36 Factory GRIP2, the 34 is lighter and more suitable for trail riding rather than enduro or aggressive downhill terrain. Riders prioritizing stiffness over weight may consider the 36, but for technical climbs and longer trail days, the 34 is unmatched in agility.
Frequently Asked Questions (FAQs)
1. What is the recommended sag for the Fox 34 Float Factory GRIP2?
Aim for 15–20% sag based on total travel. This provides a balance between small bump sensitivity and support.
2. How often should I service my GRIP2 damper?
Fox recommends a full damper service every 125 hours of riding or annually, whichever comes first.
3. Can I use the 34 Float Factory GRIP2 on an e-MTB?
While not specifically designed for e-MTB use, it can be used on lighter e-MTBs within the recommended travel and axle specifications.
4. Does the 34 GRIP2 support volume spacer tuning?
Yes, the EVOL air spring allows for internal volume spacer adjustment to tune progression.
5. What’s the difference between low-speed and high-speed damping?
Low-speed controls fork movement during gradual inputs like braking and pedaling. High-speed manages impacts like rocks and landings.
6. Is the GRIP2 damper difficult to tune?
While it offers more adjustments than simpler dampers, starting with the baseline settings and adjusting one dial at a time simplifies the process.
Conclusion
The Fox 34 Float Factory GRIP2 fork redefines trail riding performance through its superior damping control, light weight, and unmatched tunability. Whether you’re tackling rocky switchbacks or flowing singletrack, its refined chassis and damper design provide confidence, comfort, and speed. With proper installation, regular maintenance, and thoughtful customization, the 34 Float Factory GRIP2 becomes more than just a fork—it’s a precision tool for elevating your entire ride experience.