Fox Float DPX2

SSD Modification and HSB Adjustment System
Factory, Performance Elite and Performance(limited to main piston tune)

The DPX2 is internally limited by the base valve tuning capability and with
progressive linkages this makes the high speed square edged
bumps a bigger issue. The compression adjuster lever system on the piggyback does not use
a traditional shimmed tuning system and cannot be made compliant enough for
large volume created by the increased shaft displacement of progressive linkages and limits the high speed performance on square edged bumps.
Therefore we prefer to limit the tuning options for more regressive ending linkage systems.

For more progressive linkages we prefer to modify and tune the DPS
inline over the DPX2 or offer a coil shock conversion option.

The DPS allows us to do a complete internal swap for parts that we make to
allow proper tuning and performance.

The tuning involves replacing the low speed adjuster with what we call a HSB low speed threshold adjuster which will give you more low support and less wallowing than
the stock adjustment system, we the revalve the main piston to match the leverage of your frame and your riding requirements(weight, speed , terrain and type of riding)
and set up the air can with the proper volume spacer to maximize travel and minimize bottoming.


The SSD/HSB conversion takes a different approach to the shock adjustment.

Our goal is to create a better descending version of this shock, so we concentrate on setting the valving(SSD) for the frame leverage and terrain and put the pedal platform(HSB) feel in the adjustment.
This allows us to create a plusher, smoother feeling shock without the harshness that was created by the stock pedal platform internals.
In other words, we are starting with the middle of the open low speed adjuster position as the standard setting rather than the full open position.
The HSB adjuster is a spring loaded poppet valve that replaces the low speed adjuster needle.
This allows for a firmer low speed setting that is more supportive but will still open the adjuster bleed hole to full open depending on the size of the bump and the adjuster preload setting.

Technical discussion:

The low speed adjuster circuit is converted to our HSB system, this allows for a
increased low speed compression threshold that still blows off on small bumps
to create that small bump plushness without the harsh feel.

The HSB also provides for a smooth transition of low speed compression
to the main piston valving shim stack.

High and mid speed compression system is controlled by the custom valved speed sensitive shimmed compression main piston. This is set-up to match the leverage and rider terrain.

Mid and high speed rebound is controlled by a custom valved shim stack to match the riders weight(air can pressure) and the leverage of the frame.
Low speed rebound can now be fine tuned by the red rebound knob,
i.e. more usable positions rather than coarse tuning for air pressure.

This shock is very noisy due to the internal paths of oil circulating in and out of the compression/rebound adjuster system.
The tuning procees will not reduce this noise as it is part of its design cofiguration.

Includes New Interactive Set-Up Chart


We will recommend the air can size and air can spacer if needed

Also includes complete rebuild service, oil, nitrogen charge and typical wear parts* included in price.

New lower friction, higher temperature shaft seal and IFP seal, and more reliable IFP charging puck.

*(Typical wear parts: shaft seal, reducer DU bushings, and o-rings)

**The shock must be in good working condition with no scratches or dents on moving parts,
if the air can is leaking, it should also be noted that air side will not be modified in anyway and any air side issues will not be addressed.
(Air can rebuild parts and volume spacers not included, these will be billed seperately if needed)
Service interval will remain the same as before the modifications)



FAQ's Here



Fox Float DPX2

Factory, Performance Elite and Performance(limited to main piston tune)

SSD Modification
HSB Adjustment System
(Performance limited to main piston tune)

Shock must be sent in to receive modifications.

Price $289

Order Here and Send Shock for Modifications when confirmed by e-mail.

Questions as to what affects how we set-up the shock, these generalizations hold true:
The compression valving is based on the leverage and type of riding, and rider ability affects this slightly. The HSB is based on your percentage of climbing and descending as well as the bikes ability to pedal or initial leverage. The rebound is based on the pressure in the air can (your weight) and the type of terrain. Sag is set by the air can pressure. The overall spring rate is determined by the air can size and the volume spacers.

Choose the type of riding that you will be doing so we can custom valve it to your specific needs.

Click here for a description of our definitions

Type of Riding

Choose your shock model that the SSD kit will be installed in.

Shock Model

Choose your SSD/HSB threshold tune option the kit will be set-up with.

Threshold tune


Choose rider weight.
Rider weight is without gear, we add 5-7 lbs for DH gear, 7-10 lbs for All-Mtn/Freeride.

Rider Weight

Choose the air pressure you will be using which gives you 30% sag.
We need this number to help set-up your shock rebound damping correctly.

Click here for sag setting Tips

Air Pressure

We will help you choose your air pressure if you are unable to.
Service should be performed every 100 hrs, same as Fox recommends.

Choose your rider ability for us to set-up your shock.

Rider Ability

Provide us with Bike info to set-up your shock.




Provide us with any other info to help us set-up your shock.

Set-up Info






Air Can Rebuild Kit
optional service


Air can and air sleeve
Rebuild and and seal replacement


After 50 hrs of riding the air can seals and air sleeve piston seals need service or replacing and if not replaced periodically
this allows the internal air pressureto leak between the positive and negative chambers reducing the effectiveness of the air spring system.
The air can seals also become jammed up with dirtand mud which can cause damage to the air piston shaft and create a leak path for the air can pressure.

We may suggest you replace the stock seals when we inspect your internals or
make plans to replace them yourself to prevent these issues!
This does not include damaged or dented air cans or air piston shafts, seals only.

Shocks newer than 50 hours need only be cleaned and reassembled typically.

Add option here

Price $29.95 includes parts and labor


Air Can Rebuild

Price $29.95