FOX DHX2 2016-2020 Service + Testride

DHX2 since 2018 - 2020
IFP Height for all sizes: 1.343in / 34.11mm
IFP Pressure: 125 psi
Oil: Fox Racing Shox Suspension Fluid R3 5 WT
DHX2 before 2018:
Imperial:
"Standard Size" (in) IFP Height
7.875 x 2.250 1.243in / 31.57mm
8.500 x 2.500 1.293in / 32.84mm
8.750 x 2.750 1.343in / 34.11mm
9.500 x 3.000 1.393in / 35.38mm
10.500 x 3.500 1.443in / 36.65mm
Metric:
Stroke (mm) IFP Height
50, 52.5, 55 1.243in/ 31.57mm
60, 62.5, 65 1.343in/ 34.11mm
70, 72.5, 75 1.393in/ 35.38mm
Source:
www.ridefox.co...
www.ridefox.co...
Oil:
FOX RED 10wt
Fuchs Silkolene RSF 10
r.s.p. Damp Champ 10wt
1440p48 - Gopro Hero 3+ Black Edition - Firmware v03.03

[@kuruc71]

2019 Fox DHX2 oil Fluid R3 5WT ISO 15? Fox website says

[@kraZeyWorld]

Yup, you're right. DHX2 part-/setuplist changed since 2018: IFP Height for all sizes: 1.343in / 34.11mm IFP Pressure: 125 psi Oil: Fox Racing Shox Suspension Fluid R3 5 WT

[@borkir68]

@@kraZeyWorld In video you use 10wt oil, and in service manual Fox recommends 10wt, why 5WT ?

[@RajNaraine]

@@borkir68 yeah I’m seeing 10wt for 2016-2021 dhx2

[@federicob7521]

@@kraZeyWorld great tutorial! what is confusing is the oil spec viscosity: the 5w FOX red oil has about 16cst @ 40C while the 10wt has a viscosity about 47 cst @ 40C. The fox official info are not matching. Has anybody tested the 16 cst @ 40 C oil so far? what is the response ? thanks

[@kraZeyWorld]

@@federicob7521 1. FOX RED 10wt (red colored oil) = Fuchs Silkolene RSF 10 = r.s.p. Damp Champ 10wt --> 47 cst @ 40°C 2. FOX R3 5WT ISO 15 (yellow colored oil) --> 14cst @ 40°C + newest bs for 2021 DHX2: 3. FOX Suspension Fluid 4 WT (red colored oil) --> 16cst @ 40°C

[@kamils9032]

Thx bro

[@Johannes-ey3fc]

Leo Kast der Mongo ist mein größtes idol HAhhahahahhahhaahah

[@ericheidolf8361]

My dhx2 elite, 2020. Has 1370 kl. Now leaking, apparently the seal is super supple, therefore high maintenance, imo, like once a year?

[@kraZeyWorld]

Fox recommends a full service after 125 hours of riding. In my case once a year. The DHX2 (2017) shown in this video still has the stock sealing ..same for my DHX2 (2020) from my enduro. Even with the different oil and sealing. - DHX2 2016-2017-(2018): Q-Ring - www.ridefox.com/fox17/img/help/page561-iEoulT/812-06-080-KIT.jpg *1 - DHX 2018-2020: U-cup - www.ridefox.com/fox17/img/help/page868-PRXA/812-06-086-KIT.jpg *2 [1] www.ridefox.com/fox17/help.php?m=bike&id=561 [2] www.ridefox.com/fox17/help.php?m=bike&id=868

[@norbertszekely-toth9362]

Nice

[@romanescugeorge4263]

nice, thank you man

[@tomaszzubka2125]

Hi All, Maybe it will be stupid question but I cant see this topics : 1. how to recognize the year/version of DHX2 ? 2. what type air valve inlet there is ? 3. where to find a oil adapter ( small silver screw on top ) Best Regards for all and owner.. tom

[@kraZeyWorld]

1. via the 4-digit code: tech.ridefox.com/bike since FOX changed their OIL chart for the DHX2 damper (X2 too) from 2016-2020, all now get the same oil :) the only big difference is the piston assembly: X-Ring (Q-Ring) or PTFE O-Ring old, U-Cup sealing new 2. Schrader valve 3. 803-00-463

[@tomaszzubka2125]

Thx for All Hardest opertaion was a montage bike on and take out white seeled part IFM from.

[@victorgradeus1605]

I need to change the shaft as well on mine. How hard does the parts that going onto the shaft need to be tightened? Appreciate answer 🙏

[@kraZeyWorld]

Both (eyelet and piston nut) should be tightened with 9nm (80 lb-in). On the eyelet with Loctite red (263).

[@Putzinator]

Hey man you've saved me in the past and hoping to bug you once more... Short version: If the IFP is pushed too far down can that cause issues with functionality? Like making the damper really stiff and springy? Long version: I just did my rebuild for the 2nd time and everything went smooth. When I put 120 PSI in the IFP chamber the shock becomes really stiff and when I compress the shaft by hand it springs up incredibly fast/harsh. I noticed that with lower PSI it feels much smoother and returns at a normal rate but don't want to run the shock at 40 PSI in the chamber. After opening the IFP chamber I do notice the IFP moves freely with the shaft. But I also noticed the IFP itself was actually pushed a bit too far down. Around 36-37mm vs the 34 it should be. Is this 2-3mm difference causing all this trouble? It's a 50mm stroke but not sure if that's relevant since they're all the same now. Thanks in advance you've been a saint!

[@kraZeyWorld]

Welcome back :D First things first. Messing up the IFP position by 2-3 mm should not cause this kind of problem. Did you disassemble the main piston - see part/drawings*? In my opinion there are the following options/fails that can cause this behaviour: - main piston assembled upside down: www.ridefox.com/fox17/img/help/page1026-T6ND/805-00-105-KIT.jpg see fillet - the valve shim 044-04-070 would never fully close the bypass - shimstack messed up or the valve shim (044-04-070) is damaged - something (e.g. a chip) on the piston does not allow the valve shim to fully close - one or both of the valve seat assemblies are damaged or stuck and are always open (located behind the damping adj assemblies) - e.g. www.ridefox.com/fox17/img/help/page1026-T6ND/808-17-360-KIT.jpg *part/drawings: www.ridefox.com/fox17/help.php?m=bike&id=1026

[@Putzinator]

​@@kraZeyWorldFirst off, you're the best haha. Need to Venmo you a 12 pack or something! I'm hoping it's something on the piston assembly. I thought I got it right but I'm about to go take it apart again and look. I forgot they had those diagrams with all the parts. I noticed I did miss that plastic washer that goes on the shaft. Might be the culprit? I should mention that the lockout and rebound aren't working at all currently but were working fine before. I didn't open the rebound before doing the service. Not sure if that's an issue. I'll report back if I find anything. Thanks again man!

[@Putzinator]

@@kraZeyWorld You were absolutely right. I installed the piston washers wrong... The butterfly valve (070) and ring shim were next to the topout plate. Not sure how I even messed that up but it's perfect now! You are seriously the best and need to put a link in the description for a PayPal or something. Please take my money! Haha thanks again and happy trails to you bud!

[@petrovichdanilo3930]

great job, dude! many thanks!

[@ericheidolf8361]

A lot of the work was off camera, u need to adjust/ aim camera for us rookies to follow. And isn’t there a seal for the shaft/ plunger? That’s were my shock is leaking., or did I miss that?

[@kraZeyWorld]

Some small work was off camera, yo ..but nothing important. That's why I added the description to mostly every step. But ya, this vid is far from perfect. There is a seal (even two) for the shaft/piston. What is your point? I didn't change a single seal in this video - imho I don't recommend to change any seal unless something is leaking.

[@ericheidolf8361]

@@kraZeyWorld ya. Dhx2 is leaking at shaft from main body, so my question is, do I need to replace that seal that you didn’t,”because you didn’t need to”. Sorry I don’t mean to dis. You. Just didn’t know what I was missing on the video

[@kraZeyWorld]

@@ericheidolf8361 You said you have a 2020 DHX2 ..in this case u have to change the two sealings in the bearing assembly (dust scraper und u-cup seal which are part of the 803-00-950 DHX2 damper rebuild sealing kit) - www.ridefox.com/fox17/img/help/page868-PRXA/812-06-086-KIT.jpg

[@ka81alex]

6:01 kzbin.info/www/bejne/m5amn6FtmreCpKc why do you measure height NOT from center of white piston?

[@kuruc71]

How much compressed air are using when you blow out ifp? did you use fill machine adapter? Sorry ask you many times

[@Chromedome-ss6mg]

I can get one that's 200mm but I need 210mm. I was thinking if I can get a custom adapter that makes the mount on the shock shaft longer it would be perfect. I think it screws off right?

[@syntrax-og]

can't see what you're doing :(

[@burgerzz09s51]

How do I know what weight and amount of oil to use.

[@Breal604]

Have you ever removed the outer body? Ive heard its red loctited in and a bitch to remove. Tips?

[@kraZeyWorld]

Only one time and yep ..it is not easy. You need a good pair of clamps, heat and a lot patience.

[@Chromedome-ss6mg]

I was going to try to take the eyelit off the shaft an make a longer eyelet. It was 200mm I needed 210 and the stroke was fine.

[@laurentbernos7522]

Nice...for a shock absorber 185x50 or 52.5, the measurement of oil is the same as a 55? Thanks

[@kraZeyWorld]

Yes. For metric DHX2 you have the following IFP-heights: Stroke: 50, 52.5, 55 / IFP Height: 1.243in/ 31.57mm Stroke: 60, 62.5, 65 / IFP Height: 1.343in/ 34.11mm Stroke: 70, 72.5, 75 / IFP Height: 1.393in/ 35.38mm --> now also added in the description

[@mubchen1]

I have a "2019 Factory Series DHX2" and wanted to change the oil with a small service. I wanted to ask again to be sure. Is this oil (Fox Racing Shox Suspension Fluid R3 5 WT) correct for my model? Does it have to be the oil or is this oil: (RockShox Suspension Oil 5 WT or Castrol Motorcycle Fork Oil Synthetic SAE 5W) also possible? IFP Height for all sizes: 1.343in / 34.11mm IFP Pressure: 125 psi Is this also correct for my model?

[@kraZeyWorld]

Yes, this is correct. I would use the Fox Racing Shox Suspension Fluid R3 5 WT ..pretty good oil. If u want use something different u shoul have a look to the datasheet. Not every 5 WT oil is really 5 WT (viscosity x at °C or density etc.) e.g.: FOX at 40°C --> 14 cst, RockShox at 40°C --> 16.02 cst Not a big difference in that case but this should only be an example. In any case, your current setup will change with a different oil.

[@mubchen1]

@@kraZeyWorld Thanks!

[@nikolavrckovic1588]

Hi there! Is it possible to reduce eye to eye from 8.75x2.75 to 8.5x2.5 with putting some kind of 0.25 (diy) spacer inside damper which will not allow that shaft extend to maximum travel? Or do you have any other idea how to do that? Thank you.

[@kraZeyWorld]

Yap. This is possible. Fox is doing this (see spacer): www.ridefox.com/fox17/img/help/page1026-T6ND/2019-DHX2-Shaft-Assemblies-updated-nut.jpg To unmount the nut from the shaft you may need a special 9mm clamp.

[@nikolavrckovic1588]

@@kraZeyWorld I am searching for used 8.5 and if i can convert 8.75 to 8.5 this will give me more chance to find it. Thank you for reply!

[@enrico8655]

Wie geil, du kommst aus Deutschland oder? Zumindest ist das im Video der Beerfelden.

[@kraZeyWorld]

Yo, aus Deutschland. Heidelberg.

[@richardhayter3919]

Would it not be better to orientate the bleed port pointing up to let any air excape ?

[@kraZeyWorld]

Yes, but not really necessary. Meanwhile, I put a syringe into the bleed port and point this upwards to let any air out when I set up the IFP depth.

[@kuruc71]

super demo thanks I will do this week

[@Putzinator]

Can anyone help me out about to do this rebuild in a few days... 1) Is the IFP set to 34.11mm no matter what? And where does it say this? My 2019 shock is a 210x50 and doesn't correlate to any of Fox's numbers? 2) Are we still to use the Fox Red 10wt or equivalent oils? Or now supposedly using the R3, 5WT, ISO 15? This seems to be for FIT and Fork applications? Thanks in advance!

[@kraZeyWorld]

Since 2018 all newer Fox DHX2 (except 2022 models - should be different) have a IFP height of 34,11mm and using the new R3 FOX damping oil.

[@Putzinator]

@@kraZeyWorld Dude you're a legend with these replies after all these years... Thanks so much! Last question to bug you; Would it be safe to use the fox red 10wt still? I ordered 2 liters of Silkolene already thinking it was the right stuff to use. =( I checked the cSt values of the 5wt vs the 10wt and they're pretty different. So I'm assuming it's not good to use the old red 10wt? Thanks in advance man you're saving me ~4weeks by not having to send my bike to a shop!

[@kraZeyWorld]

@@Putzinator I still have this shock in two of my bikes ..and also still active on this yt-accoung. There is no reason not to answer :D All DHX2 from 2016 to 2020 are literally the same. There was only one update in the bearing assembly (new sealing). IMHO you can still use FOX Red or sth similar like Fuchs Silkolene for a 2018+ shock. Your damping setup should change slightly (:

[@Putzinator]

@@kraZeyWorld Hey you're the best man and I'm sure a ton of us appreciate you! I'm hoping I can get my DHX2 to last that long haha. For sure thanks for the input man I think I'll go ahead with the Silkolene and just mess with the LSC and LSR as needed. I may not even notice the difference! ;P Cheers bud and happy shredding to you!

[@RevO-One]

Thanks for that awesome vid!! I just did mine (replaced the shaft and all the seals) but I suspect I may have some air trapped in, it does a squishy sound randomly, mostly on first couple bumps, is it a problem, s it bad for performance ? I remember that when I pushed the IFP, not much oil came out, maybe there was more air left? Can I bleed it anyway than taking all apart again ? Thanks a millions for the reply!

[@kraZeyWorld]

You can bleed it with a small syringe via the bleed screw. This allows you to compress and extend the shock without changing the position of the IFP or starting a new attempt (:

[@RevO-One]

@@kraZeyWorld Wow thanks, so if I understand correctly; I remove the screw, compress and extend a little bit, add some oil with the syringe to the top, repeat a couple times and close ? Or simply making the shock "overflow" with the syringe from the screw will do it ? You are truly a legend for answering thank again.

[@kraZeyWorld]

@@RevO-One "simply making the shock "overflow" with the syringe from the screw", just like that :) Fox actually calls the screw a set screw, just like in the video (: I almost always do this now like that to be sure, there really is no air in the system. It is also a good method if you forgot a spacer before or after the piston, pressed the IFP too deeply, etc. ..so, you don't have to start all over again.

[@RevO-One]

@@kraZeyWorld THANKS A LOOOOOT We could do a video about it, there is no such specific thing on yt from what I found. Is dhx2 completely silent normally?

[@kraZeyWorld]

@@RevO-One Not really completely silent but almost. Should probably make a short short video about this bleeding method.

[@martingibelalde8770]

Is this the 803-00-950 seal kit?

[@kraZeyWorld]

yup

[@johnbravo7542]

Great tutorial/demo thanks

[@Leowavekid]

MANY THANKS..... would this also Apply to the 2020 DHX2? ( plus, what tool did you use to take the adjustment valves off.. where can i get one? ). cheers

[@kraZeyWorld]

Yes, this video applies for shoxs from 2016 to 2020. All additional information see in the description (Oil, IFP heights changed since 2018). The tool for the adjustment valves is the reservoir end cap itself that I removed at the beginning of the video :)

[@Leowavekid]

@@kraZeyWorld Million Thanks !!!!👊🏼🖖🏼

[@Leowavekid]

@@kraZeyWorld MANY THANKS 🙏

[@enrico8655]

Mein dhx2 ist undicht, ich vermute die Dichtung am Schaft hat sich verabschiedet. Denkst Du ein Service ist machbar? Ich komme aus dem Automobilbau und hab 20Jahre Erfahrung.

[@fishbrit1]

nice and detailed cheers

[@matthex8676]

What is the name of last song

[@kraZeyWorld]

AShamaluevMusic - Action Sport Rock Trailer - Extreme & Driving Background Music Instrumental

[@elchelacoracing1619]

Is normal that my DHX2 is liking oil from the first day that I used it ?

[@kraZeyWorld]

Not really, nope :/

[@elchelacoracing1619]

What you recommend , should I change the oil or replace the seal kit ?

[@kraZeyWorld]

@@elchelacoracing1619 Change the seals in the bearing assembly and change the oil.

[@tolfiboyProduction]

is it needed to refuel the ifp with nitrogen ?

[@kraZeyWorld]

Nope

[@tolfiboyProduction]

@@kraZeyWorld thank u for the fast response !

[@maros39666]

Hi, is any differences between this oils? Better use oreginal, or its the same?

[@kraZeyWorld]

This are really the same oils. The only difference is the price and the label.

[@maros39666]

@@kraZeyWorld Thank you, I will try. I have problem with my shock, is knocking. I try pump 150psi but don't help. I upload video when u can see and hear kzbin.info/www/bejne/aYuZoGN_f6ifhqs&ab_channel=marosdzalai

[@maros39666]

@@kraZeyWorld I make servis and knocking is removed, thanks for videomanual

[@kevinfrmkdz]

🤘

[@charlesprophet]

i have a knocking/clunking fox dhx2 whats its a problem

[@kraZeyWorld]

Air in the damping and/or no air in the piggy.

[@charlesprophet]

@@kraZeyWorld wow thats it

[@charlesprophet]

@@kraZeyWorld thanks

[@toven89]

@@charlesprophet hey pal. Got the same issue. Just bought second hand shock. What was the issue then?

[@kuruc71]

what kind of unior tool did you use?

[@kraZeyWorld]

Suspension service set - Unior 1704 (Waterpump box joint pliers - Unior 449/1PYTHON) (Awl with round, double bent blade - Unior 639C) Allen key set - Unior 220/3SLPH

[@kuruc71]

@@kraZeyWorld thanks

[@kuruc71]

Any different 2 pos. lever one?

[@kraZeyWorld]

It's the same shock, except for unthreading the damping unit (1:24). First you have to remove the 2-pos lever with an 1.5 mm allen key and after that you can unthread the damping unit with a 15 mm socket/wrench.

[@kuruc71]

kraZeyWorld thanks

[@p199a]

how often do you have to service it? I currently ride on float x2 and it requires full service minimum twice a year.

[@kraZeyWorld]

What do you mean with "full service"? I change only the oil once/twice a year. In the most cases the sealing last for many years.

[@p199a]

@@kraZeyWorld By full service i mean you replace all seals and oils. My float x2 requires new seals twice a year its so expensive i am looking for alternative.

[@kraZeyWorld]

@@p199a That sounds very bad. My fox shocks were pretty reliable. In the most cases I just have to change the oil. My DHX 5.0 Air (from 2010) even has the first seals (except IFP). ..e.g. Float X, DHX 5.0 Air, DHX 4.0 Coil, RP23, RP2, DHX2

[@p199a]

@@kraZeyWorld I just wanted to know if DHX2 is reliable shock. I am not looking for help with float x2 i already gave up on that shock.

[@kraZeyWorld]

@@p199a Ok (: ..but as I said: My shocks were pretty reliable. My oldest DHX2 (2016) has still the first sealing.

[@liamfurcade6898]

Hello I have a problem on my dhx2. After driving for a while, my dhx2 leaks abnormally a lot of oil at the wiper seal. Where could the problem come from? Can be changing some seal? Thank you for your answer 🤙

[@kraZeyWorld]

I am pretty sure u have a damaged Q-Ring (035-00-110) in the bearing assambly, see: www.ridefox.com/fox17/img/help/page561-iEoulT/812-06-080-KIT.jpg

[@liamfurcade6898]

@@kraZeyWorld Thank you for your answer. Is it an easy operation to do?

[@liamfurcade6898]

@@kraZeyWorld Because I already rebuild twice thinking that it came from there but not

[@kraZeyWorld]

@@liamfurcade6898 Changing the q-ring seal is pretty easy. After removing the bearing assambly (0:55) you have to remove the nut on the top of the piston assambly on the shaft (be aware of the shimming). After that you can remove the piston and bearing assambly and you are able to change the q-ring. If after changing the q-ring there is still a leakage at the wiper seal, then the shaft is damaged (scratches on the shaft).

[@liamfurcade6898]

@@kraZeyWorld ohhhh thanks man, you're my god ! But I live in France and do you have a site where I could find this piece ? Thank you so much 🙏

[@kuruc71]

Can not take out ifp

[@kraZeyWorld]

1:05 ? What is the problem?

[@kuruc71]

@@kraZeyWorld video 1.10 white plastic o ring from ifp can not take out

[@kraZeyWorld]

@@kuruc71 Do it like in the video described. I do not know why this should not work. You have to reinstall (temporarily) the bearing assambly and blow out the IFP by injecting compressed air via the bleeding port on the back of the adjuster eyelet.

[@kuruc71]

@@kraZeyWorld piston asm 805-00-027 stuck . I have tried push from the bottom side last 1.5 cm from top stucked