The Fox 36 Performance Elite suspension fork stands as one of the most refined all-mountain and enduro forks available, blending robust chassis stiffness with finely tunable damping characteristics. To extract the most from this suspension fork, precise adjustments are essential. This guide offers detailed, technical insight into installing, setting up, fine-tuning, and maintaining the 36 Performance Elite for optimal trail performance.
Tools Required
- Torque wrench [paid link] with appropriate hex and Torx bits
- Shock pump (up to 300 PSI)
- Suspension oil level tool (for lower leg service)
- 20cc measuring cup (for air volume spacers)
- Fox 5WT Teflon-infused suspension fluid
- Allen keys [paid link] (2mm to 6mm)
- Grease (suspension-safe)
Installation of the 36 Performance Elite
Proper installation is critical for ensuring both safety and peak performance. Start by verifying that the steerer tube is cut to the correct length for your bike’s head tube. Use a crown race setter to fit the crown race snugly on the steerer base.
Insert the fork into the head tube, align spacers as needed, and fasten the stem bolts to the manufacturer-recommended torque—usually between 5-6 Nm. Use a torque wrench [paid link] to secure the axle and brake caliper mounts, as overtightening can distort the lowers or affect suspension smoothness.
For brake routing, ensure the hose is free of sharp bends and zip-tied at proper points to avoid contact with the stanchions. Fox recommends aligning the brake caliper with a properly spaced rotor and centering the pads using a torque of 6-8 Nm.
Initial Sag Setup and Air Spring Pressure
Setting sag is foundational to fork performance. Fox recommends a sag of 15-20% of total travel. Begin by wearing your full riding kit and getting into the neutral position on the bike.
Use a shock pump to inflate the fork’s EVOL air spring. The Fox 36 Performance Elite has recommended pressure charts printed on the fork leg or available online, based on rider weight. Start with the recommended PSI and fine-tune based on sag readings.
After reaching ideal sag, cycle the fork through full travel two to three times to equalize the negative air chamber. Recheck the pressure and top off if necessary.
Adjusting Rebound Damping
Rebound damping controls the rate at which the fork extends after compression. The Fox 36 Performance Elite offers a low-speed rebound adjuster located at the bottom of the right leg.
Turn the red knob clockwise to slow rebound or counterclockwise to speed it up. Start from fully closed and count out eight clicks. Test the bike on the trail and adjust until the fork returns quickly enough to track terrain but slow enough to prevent pogo effects.
Fine-Tuning Compression Settings
This fork includes a GRIP2 damper with external low- and high-speed compression adjustments. These dials allow precise control of fork behavior under various riding conditions.
- Low-speed compression (top blue dial on right leg) manages body weight shifts and braking inputs. Set it to 3–5 clicks from fully open for general trail use.
- High-speed compression (larger blue knob under the low-speed dial) controls harsh impacts and square edges. Start with 4 clicks from open and adjust based on terrain roughness.
Making small adjustments (1 click at a time) while test riding is the best way to match damping to riding style and trail type.
Using Volume Spacers for Air Spring Curve Tuning
Fox’s air volume spacers change the air spring’s progression. Adding spacers increases bottom-out resistance, while removing them makes the fork more linear.
To install or remove spacers:
- Depressurize the air spring completely.
- Remove the top cap using a 6mm Allen key.
- Add or remove spacers (they snap onto the underside of the cap).
- Reinstall the cap, torque it to spec, and refill air pressure.
Two to three spacers suit aggressive riders or heavy terrain, while one spacer offers a smoother ramp for lighter riders or flow trails.
Routine Maintenance Practices
Regular service ensures fork longevity and consistent performance. Wipe the stanchions clean after every ride and inspect seals for dirt buildup.
Every 30–50 hours of riding:
- Perform a lower leg service.
- Replace foam rings and apply fresh oil (Fox recommends 10cc in each leg).
- Inspect bushings and wiper seals for wear.
At 100 hours, consider a full damper service if you experience spiking, harshness, or oil seepage. Fox provides detailed manuals for damper rebuilds, but professional service is often advisable.
Troubleshooting Common Issues
- Harshness over chatter: Reduce high-speed compression and inspect air pressure.
- Fork diving under braking: Increase low-speed compression or add air pressure.
- Excessive bottom-out: Add a volume spacer or increase air pressure.
- Slow rebound return: Reduce rebound damping (fewer clicks).
- Top-out clunk: May indicate insufficient negative air pressure or rebound too fast.
Persistent issues may require internal inspection for debris or fluid contamination.
Customization Options for Advanced Riders
Beyond base tuning, riders can further customize:
- Swap the GRIP2 damper for a factory-upgraded version for broader adjustability.
- Install Kashima-coated stanchions (compatible chassis) for smoother sliding.
- Use coil conversion kits like PUSH ACS3 for more consistent sensitivity.
Always confirm chassis compatibility and follow manufacturer installation procedures for any modifications.
Performance Comparison: 36 Performance Elite vs. Factory and Rhythm
- 36 Performance Elite vs. Factory: Both share the GRIP2 damper and EVOL air spring. The key difference is the stanchion coating—Elite uses black anodized, while Factory gets Kashima for marginally better small-bump compliance.
- 36 Performance Elite vs. Rhythm: Rhythm forks use a simpler GRIP damper and heavier chassis. The Performance Elite offers significantly better damping adjustment, lighter weight, and stiffer feel.
For aggressive trail and enduro riders seeking precise control, the Performance Elite strikes an excellent balance between cost and high-end function.
Compatibility with Drivetrain and Braking Systems
The 36 Performance Elite is compatible with:
- 29” and 27.5” wheels depending on model.
- Boost (15x110mm) axle spacing.
- Post-mount brake systems (180mm direct mount).
- Standard tapered head tubes (1.5” to 1-1/8”).
It accommodates most modern drivetrains and cockpit setups without clearance issues. However, always check fork offset and travel compatibility with frame geometry before installation.
FAQs
How often should I check air pressure in my 36 Performance Elite fork?
Before every ride. Air pressure can fluctuate due to temperature and elevation changes.
Can I upgrade the Performance Elite to Kashima coating?
No, the coating is bonded at the factory. For Kashima stanchions, you would need a Factory model or aftermarket CSU replacement.
How do I know if my fork needs service?
Signs include oil leakage, reduced sensitivity, harsh impacts, or excessive noise. Follow Fox’s recommended service intervals.
What’s the best rebound setting for trail riding?
Start with 8 clicks from fully closed and fine-tune depending on your weight and terrain. The goal is to avoid bouncing or packing over multiple hits.
Can I run 180mm rotors without adapters?
Yes, the fork uses a direct post mount for 180mm rotors. Larger sizes require the correct adapters.
Is the 36 Performance Elite compatible with coil spring kits?
Yes, several third-party kits like PUSH ACS3 are compatible. Always confirm specific fork model and travel before installing.
By understanding the inner workings and tuning options of the Fox 36 Performance Elite, riders can optimize their suspension performance to match personal riding styles and terrain demands. Proper adjustment and routine maintenance keep the fork responsive, reliable, and ready for whatever trail lies ahead.