FOX FLOAT X2 Live Valve Neo Setup: Sag, Air Pressure & App Tuning
By FOX Canada | Published: 2026-11-05
Category: How-to Guides
A step-by-step setup guide for the FOX FLOAT X2 Live Valve Neo rear shock, covering sag, air pressure, Live Valve Neo app tuning, and common mistakes to avoid.
Quick answer
Start by installing the Live Valve Neo Kit (sold separately), then set sag to 25–30% of stroke with the system powered off. After that, use the Live Valve Neo app to fine-tune compression behavior for your terrain and riding style.
Why the Live Valve Neo Kit is non-negotiable
The FLOAT X2 Live Valve Neo shock relies on the Live Valve Neo Kit—sensors, Controller battery, and mounting hardware—to function electronically. Without it, the shock is a dead weight. Budget for the kit before you plan your setup session, and confirm it's installed and charged before you touch air pressure. This is the most common oversight for riders upgrading from a standard shock.
Sag is the foundation, not an afterthought
Electronic tuning cannot compensate for a fundamentally wrong spring rate. Set sag first with the system off, using the shock's air pressure to achieve 25–30% sag for most trail and enduro riding. Gravity-focused riders may prefer slightly less sag for more support, but never exceed the shock's maximum pressure rating. Recheck sag after every air pressure change—small adjustments can shift sag more than expected.
App tuning: let the shock learn your trails
The Live Valve Neo app lets you select terrain profiles and adjust how quickly the shock firms or opens. The system reacts in 1/70th of a second, so changes you make in the app are felt immediately on the trail. Start with the default profile for your riding style, then make one change at a time and test on a familiar loop. Avoid stacking multiple adjustments—you won't know which one helped.
Step-by-step FLOAT X2 Live Valve Neo setup
- Install the Live Valve Neo Kit: Mount the sensors, Controller battery, and hardware according to the kit instructions. Charge the battery fully before your first ride. Checkpoint: Confirm the system powers on and the app detects the shock before proceeding.
- Set sag with the system off: With the shock powered off, adjust air pressure until sag measures 25–30% of stroke (or your preferred percentage). Use a shock pump and cycle the shock a few times to equalize pressure. Common mistake: measuring sag with the system on—the electronic valve can alter the shock's position.
- Connect the Live Valve Neo app: Pair the shock with the app, select the default terrain profile that matches your riding, and perform any calibration steps the app prompts. Checkpoint: Ensure the app shows a stable connection and battery level above 50% before tuning.
- Tune compression behavior in the app: Adjust the firmness and reaction settings one at a time. Test each change on a repeatable trail section to isolate the effect. Common mistake: making multiple app changes at once—you'll lose track of what improved or worsened performance.
- Fine-tune air pressure for support and bottom-out: If you frequently bottom out, add 5–10 psi and recheck sag. If the ride feels harsh, reduce pressure slightly. Always stay within the shock's recommended pressure range. Checkpoint: After pressure changes, recheck sag and re-test the app's default profile before making further electronic adjustments.
- Record your settings and ride: Note your final air pressure, sag percentage, and app profile. Carry a shock pump on early rides to make quick trailside adjustments. Common mistake: forgetting to log settings—without a baseline, you can't reliably return to a good setup.
Product facts
- FOX FLOAT X2 LIVE VALVE NEO: The FLOAT X2 Live Valve Neo firms and opens the compression circuit based on trail data in 1/70th of a second. This rapid response means your sag and air pressure settings directly influence how effectively the system can adapt—garbage in, garbage out.
FOX FLOAT X2 LIVE VALVE NEO - FOX FLOAT X2 LIVE VALVE NEO: The Live Valve Neo Kit (sensors, Controller battery, mounting hardware) is sold separately and is required for the shock to function. Without the kit, you cannot set up or tune the electronic features, so factor it into your purchase and setup timeline.
