FOX DHX Factory Live Valve Neo Rear Shock - Metric 210 x 55 mm, Kashima Coat (Sensor Kit Sold Separately)

FOX's Newest Technology - Live Valve NEO -

Live Valve Neo Sensor Kit (Required for shock to function)

Neo debuted in August 2024, with the Transfer Neo wireless dropper post, giving riders an ultra-fast response time between pressing the lever and micro-adjusting the height of their dropper. But the true potential of Neo was realized when we applied it to wireless electronic suspension.

The only thing worse than bad suspension is unpredictable suspension. Your shock shouldn’t have to rely on extensive or historical power input data to predict how you’re riding. Once installed and set up, it should act exactly the way you want, when you want, with no noticeable lag.

Live Valve Neo is made up of four components

• 1 - Fork Sensor - is mounted to the front brake caliper. Using a built-in accelerometer, it determines both the angle of the terrain you are riding, and the bump force experienced by the front tire.
• 2 - Rear Sensor - is mounted to the rear brake caliper. It determines the bump force experienced by the rear tire but does not measure terrain angle, since that is already determined by the Fork Sensor.
• 3 - Controller - is built into the rear shock, and will Open or Firm the shock’s compression circuit based on trail data from the sensors. The controller is powered by a single rechargeable battery – the same battery and charger that are used with the Transfer Neo dropper post.
• 4 - Fox Bike App - guides users through system setup with helpful tutorials, displays battery level, monitors firmware updates and reports diagnostics. Riders who want to customize suspension performance to their preference can do so via the app with Live Valve Neo Tunes. See page 15 for more on Live Valve Neo Tunes.

How it Works?

What separates Live Valve Neo from other electronic suspension systems? It’s how it helps you ride faster in every situation, whether climbing, traversing or descending. When commanded by the sensors, the shock will switch between two positions—Open and Firm—in as little as 1/70th of a second.

Live Valve Neo does not employ a third “Pedal” mode, which some riders may perceive as necessary when climbing technical trails, or pedaling through low angle technical sections. Live Valve Neo can switch between Open and Firm so fast that a “middle ground” setting is not necessary. You get full support of Firm mode exactly when you need it, and the plushness of Open mode exactly when you want it.

Three elements work together to achieve Live Valve Neo’s speed advantage:

• Sensors only transmit the info they need to I.e. when the shock needs to open.
• Neo communicates a command from the sensors to the controller in as little as one millisecond.
• A 2-position magnetic latching solenoid opens or firms the shock’s compression circuit significantly faster than a motor, while remaining virtually silent.

How it Rides?

The ultra-fast switch between Open and Firm Mode lets you experience the efficiency of riding a hardtail, but only when you want it. This allows riders to maintain momentum and speed easier than ever before, in all sorts of riding scenarios. Some examples:

• Pumping out of corners. The shock may open briefly in the middle of a corner to maintain traction, but by the time you’re ready to exit the corner, the rear of the bike will be firmer, more supportive, and conducive to pumping for speed.
• . Getting airborne. If your shock is firm during takeoff from a jump or drop, the Controller will detect that you are airborne after takeoff, and open your shock so it’s ready to absorb when you touch down on the landing.
• Riding through a short technical section on an otherwise smooth climb. When climbing, Live Valve Neo defaults to Firm, but after your front wheel encounters its first obstacle, your rear shock can open to absorb the impact, then quickly firm up for power out of the technical section.
• On an eMTB, riders climb faster and spend more time seated, experiencing higher impacts on climbs. Opening the shock—when needed—absorbs more of that impact. OEMs can also tune shim stacks inside the Live Valve Neo shock to forego an e-bike’s stiff pedaling platform in favor of unrestrained descent performance. Live Valve Neo’s Firm mode creates its own pedaling platform.

Understanding Tunes

Live Valve Neo is always working in the background whether you are climbing, traversing or descending. But how it operates in each of those scenarios is different. This is where tunable algorithms—what we refer to as Tunes—come into play.

Each Live Valve Neo Tune consists of three states: Climb, Flat and Descend. The Fork Sensor detects the angle of your bike and toggles between these three states.

While a Live Valve Neo shock will default to Firm mode in all riding scenarios, having specific states within each Tune means the system can bias towards support during climbs or traverses, but open more easily (and stay open) on longer descents.

Each of the above states has a force threshold required to open the shock, and a timer for exactly how long it should stay open. If another bump (that exceeds the threshold) is detected during the Open Timer, the timer resets and your shock will stay open. If no significant bump is detected before the Open Timer expires, the shock reverts to Firm.

To summarize, as you ride, the Fork Sensor determines the Tune state (Climb, Flat or Descend) and the Controller instantly updates the bump thresholds and Open timers of your shock accordingly.

Neo-equipped shocks will ship with five Tunes designed by FOX to work for most riders. These Tunes are recipes our engineers created for excellent on-trail performance from our Live Valve Neo shocks, for any rider weight, in any trail region:

• Standard - For most rider preferences, in a variety of terrain.
• Firm - For riders who prefer a firmer platform, even when encountering small bumps and obstacles on-trail.
• Plush - For riders who prefer a softer ride, favoring comfort over efficiency.
• Open - Overrides the Live Valve Neo system, keeps your shock Open in all riding scenarios.
• Closed - Overrides the Live Valve Neo system, keeps your shock Firm in every riding scenario, except when landing a jump or drop.

What's in the Box?

What is included when I purchase a FLOAT X or DHX Live Valve Neo shock?

Receive your selected shock with built-in Controller, and a FOX battery block installed in place of the rechargeable Live Valve Neo battery.

The rechargeable battery, sensors and charger required to operate the Live Valve Neo system must be purchased in a separate kit.

DHX Live Valve Neo shocks do not include a spring.

What Brake Systems Work with the Bump Sensors?

Bump sensors are understood to be compatible with current Shimano and SRAM production hydraulic MTB brakes. Examples of current production brakes are as follows: XTR M9100, Deore XT M8100, SLX M7100, Deore M6100, Saint M82, Magura MT7, and TRP DHR Evo.