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Fox Float Inline Shocks

The Fox FLOAT is a family of inline rear shocks.  It is a highly successful shock platform that has been around since 2000 and is still produced today.  Although cosmetic & internal changes have been made to the Fox FLOAT, the usage (XC and Trail) have not changed and key dimensions and seal sizes have remained the same since introduction.
The FLOAT family includes FLOAT, FLOAT R, FLOAT RL, FLOAT RLC, FLOAT AVA, RP, RP3, RP23, CTD EVO, CTD Boostvalve and DPS shocks.  It also includes some proprietary shock designs like Specialized ITCH, Specialized Triad & Septune, Trek Reaktiv, Scott Nude etc.  FLOAT is an ancronym for Fox Load Optimum Air Technology.  It replaced the Air Vanilla shocks of 1999 which did not have a negative air spring.

Manitou Dorado 2009-19

Fox FLOAT shocks feature air springs with self balancing negative air, many damper types and many sizes.  They also feature an internal contained hydraulic damper which usually has rebound and compression dials on the top eyelet, though some non-adjustable versions were made.  They have an external air-sleeve which offers easy servicing of the air seals and canister.  The air seals can be serviced and replaced at home, the damper (including lower IFP plug screw) contains up to 500 psi pressure and should not be opened by anyone not experienced in shock service.

Shockcraft can service, repair, upgrade and tune all of the Fox FLOAT shocks. 

To book your Fox Float Inline rear shock service, upgrade and/or tune please complete a shock service booking form:

Common Failure Points & Service Indicators

Air-seal leaks causing dirt and oil buildup on the lower damper body.
Air being sucked into the damper causing oil foaming, slurping and reduced of damper/lockout function.
Internal oil leaks causing damper oil to exit via the top adjuster knobs.
Damaged damper body (scratches and dents) causing air loss.
Broken seal lip in the air can causing the wiper seal to pop out.
Air and oil seals wearing and hardening due to age.
Loss of damping action due to broken shims in CTD EVO and DPS models.
Broken/bent retainer screws allowing adjuster knobs to come out.

These shocks are all servicable and we have seal kits for all of them.  Metal parts supply can be difficult on shocks over about 10 years of age due to changes in shaft size and head designs.

Shock Details & Identification:


Brand


Fox (Fox Racing Shox)


Description


Inline air shock with shim-stack damper


Models - Generation 1


2000-2004
FLOAT
FLOAT R
FLOAT RL
AVA


Identifiers


Air can screws over shock head. 
FLOAT = No adjusters
FLOAT R = Rebound adjuster
FLOAT RL = Rebound adjuster & lockout lever
AVA = Adjustable Volume Air Can


Models - Generation 2


2005-2013
FLOAT RP2,
FLOAT RP3,
Specalized Triad,
FLOAT RP23


Identifiers


Air can screws under shock head. 
RP2 = 2 position compression lever (propedal)
RP3 = 3 position compression lever (propedal)
Triad & Septune = Specialized version of RP3
RP23 = 2 position compression lever (propedal) with three position knob on top


Models - Generation 3


2014-15
CTD EVO
CTD Boost Valve


Identifiers


Air can screws under shock head.
3 position climb-trail-descend propedal lever
9mm damper shaft inside
Stickers are only external id between CTD-EVO and Boost-Valve


Model
s - Generation 4



2016-Onwards
FLOAT DPS


Identifiers


Air can screws under shock head.
2 sizes of shock head:
SV = Standard Volume
LV = Large Volume
Adjuster/lockout knobs have many variations
9mm damper shaft inside


Damper


Shim stack or SPV valve compression damper.  Rebound by shims or just orifice needle. 

Rebound adjustable via red knob and internal needle.

Compression adjustable via blue lever which closes bypass or certain circuits.


i2i Sizes


Imperial & Metric
Eyelet & Trunnion

Also
Specialized Yoke


Spring


Air spring with self balancing negative chamber by notched can.

High volume cans by dual layer or early shocks or bigger head on later shocks.

Larger negative chamber on Evol versions.


Remotes


Remote conversion (pull to lock or pull to unlock) requires a different shaft head and adjuster assembly to hand adjustable shocks.


Eyelet Sizes


1/2" (12.7 mm) eyelets on both ends
Early shocks used 08DU08 DU bushings.
Later shocks use Fox IGUS top-hat bushings with oring sealing collars.


Tunes


Factory tunes run one of a preset range of compression and rebound shim valving.  Propedal spring rates and preload can be varied.
Preloaded and linear pistons available for DPS shocks.


Fluids


Torco RSF Medium (32 cSt) used on all shocks from factory.

Fox claims 10 wt red is used.  We have never found 10 wt fluid in a factory filled Fox.


Aircan Lube


Fox specificy FLOAT Fluid 0.5 cc in negative, 2 cc in positive.

This migrates to the negative chamber during riding for shocks mounted upright.


Fluids & Pressures:


Stock


Torco RSF Medium 32 cSt damper oil
120-500psi in IFP
Float Fluid (2.5cc) in air can.


Shockcraft Recommended


Motorex 7.5 wt oil (35 cSt) in damper - vacuum bleed.
Slickoleum - air can & air seals
300-500psi in IFP depending on leverage & impact speeds.


Shockcraft Optional


Motorex 10 wt oil (50 cSt)
in damper for heavier riders with no internal tuning.
Motorex 5 wt oil (22 cSt) in damper for lighter riders with no internal tuning
Supergliss 2 cc in air can for extended air can service intervals

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  1. 4 ounce tube of Slickoleum assembly grease Learn More
  2. 5 g squeeze tube of Slickoleum assembly grease Learn More
  3. 5 g tube with lid of Slickoleum assembly grease Learn More
  4. Motorex SuperGliss lubricating oil used for lubricating fork lower leg bushings and air chambers.
    Supergliss 100K is 100 cSt @ 40°C
    Supergliss 68K is 68 cSt @ 40°C
    Supergliss 32K is 32 cSt @ 40°C

    Always respect the manufacturers oil volumes.  Do not use Supergliss in fork dampers.

    Perfect replacement for:
    Manitou Semi-bath oil
    Rockshox 0W30 oil
    Fox 20 wt Gold oil &
    fork oils used as bushing lube or bath oil

    Learn More

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