The Fox 36 Factory GRIP2 suspension fork is engineered for aggressive trail and enduro riders demanding precise tuning and high-end performance. With a robust chassis, finely tunable damper, and superior stiffness-to-weight ratio, it stands out among high-performance forks. This article presents an in-depth comparison of the Fox 36 Factory GRIP2 against other leading suspension fork models, while also exploring its installation, adjustment, maintenance, and tuning potential.
Tools Required
- Torque wrench [paid link]
- Allen wrenches [paid link] (4mm, 5mm, 6mm)
- Crown race setting tool
- Star nut setter or compression plug tool
- Shock pump (high-pressure)
- Suspension-specific grease
- Ruler or caliper (for sag setting)
Installation of the Fox 36 Factory GRIP2
Proper installation is critical to ensure both performance and safety. The 36 Factory GRIP2 is available with tapered steerer tubes and thru-axles, requiring frame and hub compatibility.
Begin by pressing the crown race onto the fork steerer using the appropriate tool. Trim the steerer tube according to your desired stack height and headset configuration. Insert the star nut or compression plug into the steerer, then fit the fork into the head tube.
Align the stem, preload the headset using the top cap, and torque the stem bolts to specification. Install the front wheel using the 15mm thru-axle, ensuring that it is fully seated in the dropouts.
Initial Setup and Adjustment
The GRIP2 damper offers independent high- and low-speed compression and rebound adjustment. Begin by setting the sag to 15-20% of the fork’s total travel. Use the shock pump to adjust the air pressure in the EVOL air spring. This ensures support and proper ride height.
Next, tune the low-speed rebound (red dial) to control return speed on gradual terrain. Set high-speed rebound (red hex screw) to stabilize the fork after big hits. Adjust low-speed compression (blue dial) for brake dive and cornering support, while high-speed compression (blue hex screw) handles square-edge impacts.
These settings must be fine-tuned based on rider weight, terrain, and personal preference. Start with manufacturer-recommended settings, then adjust incrementally during trail testing.
Routine Maintenance Requirements
Regular maintenance keeps the 36 Factory GRIP2 operating smoothly. Every 30-50 hours of riding, clean the stanchions and inspect for damage. Lubricate dust wipers with suspension-specific fluid and check for proper seal engagement.
At 100-hour intervals, replace the lower leg oil and clean the foam rings. Perform a damper service every 200 hours or annually, whichever comes first. This involves bleeding and refilling the GRIP2 damper, a task best performed with Fox’s damper service tools or by a certified technician.
Troubleshooting Common Issues
Many setup problems stem from incorrect air pressure or rebound damping. If the fork feels harsh or doesn’t use full travel, reduce air pressure slightly. If it rebounds too slowly after compressing, increase rebound speed incrementally.
A knocking sound during compression may indicate loose axle hardware or dry bushings. Check all bolts for correct torque and consider servicing the lowers. Inconsistent compression feel often points to low damper oil levels or air in the damping circuit.
Performance Optimization and Customization
The 36 Factory GRIP2 offers extensive tuning capabilities. Riders can alter volume spacers in the air spring to modify ramp-up characteristics. Adding spacers increases bottom-out resistance, ideal for aggressive riders. Reducing spacers offers a more linear feel, preferred for smoother terrain.
The fork’s Kashima-coated stanchions minimize friction and improve small bump sensitivity. Further performance gains come from using low-friction seals and regularly refreshing lubrication.
Adjusting fork offset via aftermarket crown options allows geometry tweaking for sharper or more stable steering characteristics, depending on rider preference and bike geometry.
Compatibility with Other Drivetrain and Chassis Components
The Fox 36 Factory GRIP2 is compatible with most modern trail and enduro bikes featuring tapered head tubes and boost spacing front hubs. Its 15x110mm axle and 160–180mm rotor compatibility suit standard trail configurations.
However, care must be taken with brake caliper mounting. The fork requires post-mount disc brakes and is optimized for 180mm rotors without adapters. Adapters are needed for 203mm rotors, and only direct-mount calipers fit properly.
It’s also important to pair this fork with rear shocks of similar travel and compression characteristics to maintain balanced suspension behavior.
Comparison: Fox 36 Factory GRIP2 vs RockShox Lyrik Ultimate
The Lyrik Ultimate is a close competitor, featuring the Charger 3 damper and DebonAir+ air spring. Both forks offer high-end adjustability, but the GRIP2 has a more customizable rebound circuit. The Lyrik is slightly lighter, making it favorable for longer rides.
In terms of stiffness, the 36 Factory edges ahead due to its stiffer chassis and bolstered arch. However, the Lyrik’s more linear air spring curve suits riders looking for a plush feel off the top. Tuning depth is slightly better on the Fox, with finer click increments.
Comparison: Fox 36 Factory GRIP2 vs Öhlins RXF36 m.2
The Öhlins RXF36 m.2 boasts a unique twin-tube damper design and coil-spring-like air response. It excels in small bump compliance and traction, but lacks the click-by-click tunability of the GRIP2.
Öhlins uses a three-position compression switch rather than the fully independent circuits on the GRIP2. This limits micro-adjustments but simplifies setup. Weight-wise, the RXF36 is slightly heavier, but offers excellent mid-stroke support. Riders favoring simplicity might prefer the RXF, while tuners and racers often opt for the GRIP2.
Comparison: Fox 36 Factory GRIP2 vs DVO Onyx SC D1
The DVO Onyx SC D1 features a unique OTT (Off The Top) coil preload adjustment, offering sensitivity tuning unavailable in air forks. Its damper is externally adjustable but lacks the precision and adjustability of the GRIP2.
The Onyx excels in plushness and traction, especially in chattery sections. However, it is heavier and less lively than the Fox. Its maintenance intervals are also slightly longer but require proprietary tools.
The GRIP2 offers more consistent performance across a wider range of terrain and temperatures, making it the better all-round performer.
Final Verdict
The Fox 36 Factory GRIP2 suspension fork stands out for its advanced adjustability, stiffness, and durability. While other forks may offer unique features or weight savings, none match the GRIP2’s balance of tunability, responsiveness, and high-speed control.
It is ideal for aggressive riders who prioritize precision and are willing to spend time dialing in their suspension. Riders preferring a set-it-and-forget-it approach may find simpler forks more suitable, but for those seeking top-tier performance, the GRIP2 remains the benchmark.
FAQs
1. What travel options are available for the Fox 36 Factory GRIP2?
The fork is available in travel configurations ranging from 150mm to 170mm, depending on the model year and wheel size compatibility.
2. Can the Fox 36 Factory GRIP2 be used with e-MTBs?
Yes, the 36 Factory GRIP2 is suitable for e-MTB use and offers the stiffness and durability necessary for heavier bikes.
3. How often should I service the GRIP2 damper?
Fox recommends servicing the GRIP2 damper every 200 hours of riding or once annually for optimal performance and longevity.
4. What is the difference between the GRIP and GRIP2 dampers?
The GRIP damper uses a simpler internal design with fewer external adjustments. The GRIP2 damper offers independent high- and low-speed rebound and compression adjusters for fine-tuned suspension control.
5. Can I install volume spacers myself in the Fox 36 Factory GRIP2?
Yes, volume spacers can be installed at home using basic tools and following Fox’s service guidelines, but ensure air pressure is fully released before disassembly.
6. Is the Fox 36 Factory GRIP2 compatible with 29-inch wheels?
Yes, there are specific models of the 36 Factory GRIP2 designed for both 27.5-inch and 29-inch wheel sizes.