Fox Float DPX2 Shock - First Ride

Jun 13, 2017
by Mike Kazimer  


What happens if you combine elements of Fox's DH-oriented Float X2 and the more trail-specific Float DPS shock? You get the Float DPX2, the newest addition to Fox's lineup, a piggyback style, air-sprung shock that's aimed squarely at the all-mountain / enduro crowd. Like the X2, it uses a twin-tube damper configuration, with independent rebound and compression adjustments. The DPX2 will take over the position currently occupied by the Float X, a shock that's been in Fox's lineup since 2013.

Fox DPX2 Details
• Twin tube damper
• Three compression damping positions
• EVOL air sleeve
• Weight: 499 (230 x 57.5mm)
• Price: $549 USD
www.ridefox.com

Available in both metric and imperial sizes, the Factory series Float DPX2 retails for $549 USD. The 230 x 57.5mm version we have in for review weighed in at 499 grams, including mounting hardware. For reference, a Float X2 in the same size weighs 609 grams, while a RockShox Super Deluxe RCT weighs 529 grams.


Fox
There are three compression positions, with 10 clicks of fine tuning for the full open setting.
Fox
Look at that - a rebound knob that you don't need a toothpick to adjust.

Adjustments

The DPX2 has three compression damping positions – Open, Medium, and Firm, and on the Factory version there are ten clicks of additional adjustment that can be used to fine tune the feel in the Open position. The rebound dial offers 14 clicks of adjustment, and can be turned without requiring a tiny Allen key or a stick that you found on the side of the trail – a very welcome improvement over the Float X. Adjusting the shock's end stroke ramp up can be done by switching out the plastic volume spacer for either a larger or smaller one, a simple procedure that can be done without any specialized tools.


Fox
The DPX2 uses Fox's Extra Volume (EVOL) negative air spring, which is designed to improve small bump sensitivity by creating a more linear initial spring curve.
Fox
Along with a smaller piggyback for improved water bottle clearance, the amount of room around the shock's eyelet was also increased to help prevent any frame fit issues.

Fox
There are a variety of volume spacers available to adjust the DPX2's end stroke ramp up.


What's Happening Inside?

Where exactly is the oil going when the shock is compressed? I'll let the charts provided by Fox do the bulk of the explaining, but the gist of it is that rather than traveling back and forth along the same path, the oil in the DPX2 recirculates. The oil travels up to the Base Valve, through the compression and rebound circuits, and then returns via the space in between the inner and outer damper shafts. According to Fox, one of the benefits of this damper design is that it requires lower internal pressures, which improves the shock's small bump sensitivity. It also allows for more control over the rebound and compression circuits, helping to ensure that the shock can be configured to work well with a wide variety of suspension designs.


Compression
Fox


Rebound
Fox


Reed Valve Lockout

When the DPX2's blue dial is set to the Firm mode, the oil is forced through a separate damping circuit that uses reed valves. A reed valve blocks the flow of oil up until a certain amount of pressure is reached, at which point it smoothly opens up, acting as a blow off for larger impacts. In other words, if you somehow found yourself plowing through a rock garden with the shock in Firm mode, the ride feel will be firmer, but your fillings won't be rattled out of your head like they would be with a more traditional full lockout mode.


Fox

Ride Impressions

If thinking too much about oil flow, check valves, and piston velocity makes your head hurt, don't worry, you're not alone. The good news is that setting up the DPX2 is extremely easy – all that's required is adjusting the air pressure, and then dialing the rebound speed and the amount of compression damping in the Open position to your liking.

I'm running the DPX2 on a Trek Slash 29, and for my 160lb weight my current settings are as follows: 220 psi, 7 clicks of rebound, and 6 clicks of compression (rebound and compression are from fully closed), and the largest volume spacer. Of course, those numbers are just for reference – settings will vary widely from bike to bike, and every rider has their own preferences.

bigquotesWith the DPX2 I feel like I've found my happy place with much less tinkering, and haven't sacrificed anything in the way of performance.

I'm just starting to put the miles in on the DPX2 – there are some long laps at Whistler in its future in order to see how it fares – but I've been impressed with its initial performance versus the Float X2 it replaced. The stock Float X2 had been a little tricky to get set up correctly on Slash; at first, I was going through the travel more quickly that I wanted, even fully stacked with volume spacers, and it took a fair bit of experimentation before I was able to find my ideal settings. With the DPX2 I feel like I've found my happy place with much less tinkering, and haven't sacrificed anything in the way of performance. There's still plenty of range in the rebound circuit, and the same goes for the compression adjustment – it wasn't necessary to go to any extremes to get it to feel exactly the way I want.

So far the DPX2 has been silent and smooth, with excellent sensitivity on chattery section of trail. There's plenty of midstroke support for pushing hard into corners and remaining balanced on the steeps, and there haven't been any harsh bottom outs despite my best efforts. The DPX2 also delivers a very smooth feeling when landing, and whether that's after hitting a jump or bunnyhopping a section of roots, there's absolutely no harshness – the shock responds extremely quickly, taking the edge off and providing a buttery smooth touchdown. I've been using the full open mode for descending, but the Medium and Firm compression modes are both very usable – the Slash is a fairly active bike, so I've been taking advantage of the Firm mode for longer, smoother climbs, and using the Medium mode on more technical ascents in order to take advantage of the increased traction.

I'd imagine we'll start seeing the DPX2 show up on everything from shorter-travel aggressive trail bikes all the way up to full-blown enduro race machines – the range of sizes and stroke lengths makes it a very versatile option. Stay tuned for a long term review, as well as a comparison to other shocks in this category.

Must Read This Week

173 Comments

  • + 324
 So with a name like DPX2 I would expect 4 shafts...
  • + 75
 I see that Fox has adopted Cove Bikes' naming convention.
  • + 26
 Metric shox, but the variety of volume spacers are in imperial ! lol, still some work to do
  • + 43
 Wow this brings a whole new meaning to the phrase:

'With the DPX2 I feel like I've found my happy place with much less tinkering, and haven't sacrificed anything in the way of performance.'
  • + 4
 I...see...what you did there...?
  • + 7
 Damping just sounds dirty now...
  • + 14
 and it's pushing performance with some tiiiight tolerances.
  • + 12
 Lol... reminds me of Orgazmo. Should have called it the DVDA.
  • + 5
 @Powderface: I don't wanna sound like a queer, but....that shock is really hot!
  • + 11
 The performance elite will have a black shaft with a kashima body for some reason.
  • + 6
 If you have to ask what it means you can't afford it
  • + 4
 @High-Life: "what's a ZJ?"
  • + 7
 With 4 shafts I bet those seals wear out really quick making it feel all sloppy, mushy and loose.
  • + 9
 @lRaphl: Sadly I don't think enough people have seen that brilliant movie if they're neg propping your comment. They'll never know the potential of hamster style.
  • + 1
 ???????????? @Powderface:
  • + 2
 Mmmm, twice as much double stuffing....You make goooood cookies Mr. Christie!
  • + 2
 @Powderface: ...legit movie stream (a popup or two, but zero issues just using basic AVG)...Enjoy Folks Cool
https://fmovies.is/film/orgazmo.02qwr/5v5vv9
  • + 1
 @Powderface: They will also never know about the T-Rex either! Big Grin
  • + 1
 @jefftrancex1xtr:
I was afraid I'd be the only one thinking this was odd
  • + 1
 @High-Life: because there are no stupid rich people about.....

oh no, wait... Dear Mr President
  • + 1
 Double the fun!
  • + 1
 @Boardlife69: Some people like it worn out, sloppy, mushy and loose!

Wink
  • + 43
 What shade of Shakira will I get??
  • + 1
 A whole new shade, obviously.
  • + 37
 "Look at that - a rebound knob that you don't need a toothpick to adjust."
I laughed. Then I realized I still need a toothpick to adjust. Then I stopped laughing
  • + 1
 I used to have the same issue. Then I bought a hardtail.
  • + 24
 "The good news is that setting up the DPX2 is extremely easy – all that's required is adjusting the air pressure, and then dialing the rebound speed and the amount of compression damping in the Open position to your liking"

Err...right? How is this different from setting up literally any other gas sprung fork or shock ever created?
  • + 10
 Dhx2 has lat, hsr, lad, hsc, and then open/firm adjustments.
  • + 5
 Autocorrect: lsr, lsc
  • - 15
flag CaptainSnappy (Jun 13, 2017 at 9:17) (Below Threshold)
 @SoDiezl350: Oh yah, crystal clear. Sooo much clearer.
  • + 19
 No comments yet?,,,everybody still confused with the oil circuit drawing's above :-P
  • + 7
 Hah, no. I definitely understand it. Just follow it from B to D to C to A. Clear as can be!
  • + 2
 Dude I plan to come to those pictures later and try to grasp. Too much for my first read through!
  • + 15
 @fabriciofracchia "nobody knew shocks could be so complicated"
  • + 2
 Follow the drawings. It differs from the Float X2 in that the circuits are in sequence and do not run backwards, where the X2 has the compression and rebound assemblies running as one way check valves in parallel into and away from the piggyback and IFP. (oil flows through both assemblies both in compression and rebound).
  • + 2
 Glad to see the rebound adjuster now much more accessible and some decent compression adjustments. Those drawings could definitely be laid out a bit better though hahah
  • + 7
 @zede: I laughed so much I nearly spilled my covfefe
  • + 12
 Marketing to Engineering; It is too heavy
Engineering; This is what it takes to perform well
Marketing; Cut the oil volume in half so it looks better on the spreadsheet
Engineering; F my life

There is no freaking way they took that much weight out without dramatically reducing the oil volume.
  • + 1
 100p my thoughts.
  • + 1
 It isn't really fair to compare the weight or oil volume to the Float X2, it's replacing the Float X. Of course the X2 has more oil and better performance. I don't have numbers, but I'd guess this has gained weight over the Float X it replaces.
  • + 1
 @Rooster09:

The single wall Evol can is both lighter and sheds heat better. The fact that it is a twin tube damper means less cavitation, meaning lower pressures and better performance. The oil circulated meaning it uses oil more efficiently and can shed heat much better. I also assume the went with a 5wt oil for 2018 like they did with their DHX2 and Float X2 shocks, again meaning less cavitation.
  • + 16
 and at only $549 I'll order 2 so I have a spare
  • + 28
 it's not an inline so you'll just need the one.
  • - 8
flag trauty (Jun 13, 2017 at 10:34) (Below Threshold)
 overpriced! 400 please. its not made in usa!!!
  • + 0
 @atrokz: it's designed by the same guy that designed the inline. He's gone from Cane Creek, to RS, now to Fox.
  • + 1
 Thought he went from CC to Fox and is at RS now?
  • + 1
 @Jhou: Correct.
  • + 12
 Hey Mike,

I have found with the smaller shocks like this, the float x2, the deluxe, monarch plus etc, that bigger dudes (200lbs plus) have a harder time getting the right tune. What has been your experience?
  • + 1
 I'd also be interested in what the max pressure is for the shock.
  • + 6
 yea, rebound seems to be too fast once we get the air pressure where we need it
  • + 1
 We will always need shim stack adjustments to raise the base Rebound tune. It is universal.
The Fox Evol cans from the older DPS shocks can easily take #325 psi reliably and these look to be the same.
  • + 5
 Had a Float X with EVOL. I'm 230#, and it took a lot of tinkering with volume spacers to get it right. The bigger negative chamber makes larger riders have to run much higher pressures and negates some of the gains the EVOL can offers.
That said, I have Monarch Debonair and it's been easier to setup with less loss of initial sensitivity.
  • + 4
 @krisrayner: I'm 6'6"/250lb's and my Debonair has been awesome. The higher PSI and the spacers available make it great.
  • + 3
 I weigh in at 230, and after trying three different air shocks I gave up on all the tinkering and bought a coil. RS Kage with a 650lb spring cost me $250 new. It felt better than any other shock I have tried out of the box, and took me 2 rides to dial in the rebound and compression to absolute perfection. It might be a bit heavier than an air option, but if it bothered me I could just get a ti spring for $120 or lose a few pounds of beer belly for free.
  • + 1
 Do anyone else's volume spacers not fit correctly on their Float X? It was a wrestling match to get a couple of mine to fit in place, the others snapped in easily. Pretty frustrating.
  • + 1
 @skelldify: Float X has a larger diameter shaft than the regular DPS shocks. Special spacers only
  • + 1
 @krisrayner: I have the correct spacers.
  • + 10
 Probably it will appear on the new Rocky Altitude 90 and 70 aluminium, since it was written that the shock was TBA
  • + 1
 I would guess you are right. Fox live was the rumor as the rear shock, but maybe they just still aren't there yet.
  • + 2
 Yep, my LBS confirmed that. Just waiting for my DPX2 and now that it's officially released I hope I'll get it soon
  • + 2
 @Nicksen: No longer blurred on Rocky's site on the 90.
www.bikes.com/en/bikes/altitude/2018?tid=72
  • + 2
 @jasbushey: It looks nice inside the frame not too big nor small. And the alloy 70 gets a nice build for an alloy bike and is quite competitively priced (also in Europe)
  • + 1
 Ibis HD4 as well
  • + 7
 "Along with a smaller piggyback for improved water bottle clearance..."

C'mon really??? To me this line says: "We'll potentially compromise the function and effectiveness of this shock because people decide what frames to get based on if a friggin water bottle fits."
  • + 3
 You must not read the comments on the Yeti forums. Constant bitching about no bosses inside the triangle.
  • + 1
 I'd say it's more about what @salespunk said. They have reduced the oil volume, but they don't want to tell us about it. So they come up with the story about water bottle clearance...
  • + 1
 @squarewheel:

It's an enduro/trail shock. 90% of riders demand water bottle mounts. This isn't supposed to replace their more gravity oriented Float X2. A major issue on a lot of frames was water bottle clearance. So the addressed it.

If you want a no compromise gravity damper, buy the DHX2 or Float X2. Both had improvements for 2018.
  • + 5
 Any idea if this will come with volume reducers? Biggest gripe is the cost of those from Fox. Roughly $45USD for a set compared to $10-15 for a heap of bands for Rock Shox stuff.
  • + 2
 dvo topaz comes with a bunch of volume clips stock from the factory.
  • - 1
 fox brand is a nicebunch of greedy peons.
  • + 4
 Perfect choice for a DH bike in the modern DH era. Enduro riders, please come forward, you may need those dampers over there. What's that? Ah yes, that thing around the shock is a coil spring, it is very good for mountain biking on natural trails.
  • + 3
 "the Slash is a fairly active bike, so I've been taking advantage of the Firm mode for longer, smoother climbs, and using the Medium mode on more technical ascents in order to take advantage of the increased traction."

So basically you are saying the pedaling performance and the climbing on it is rather bad?
  • + 2
 I'm saying that the rear shock can benefit from additional low speed compression on the climbs to firm it up. The full Slash review is here if you want the rundown: www.pinkbike.com/news/trek-slash-99-29-rsl-review-2017.html.
  • - 1
 No he's saying most don't run enough LSC including himself(totally open?), I thought 12-15 from closed was good but shockwiz moved me towards 7/9 LSC.
  • + 7
 is this a female specific shock?
  • + 1
 Yes
  • + 3
 So only $730 cad........ehhh? I will buy when the last fragment of Kashima is worn off my 4yr old DPS. OR Maybe i will buy a hardtail with the cash. Although it is pretty.....
  • + 6
 how does it taste?
  • + 1
 I'm starting to think that the real driver to twin-tube shocks is that your average rider nowadays "understands" and has strong opinions on regular ol'd DeCarbon shim-based damping.
  • + 1
 The only real question that needs to be answered is, Does it still blow through it's f*cking travel like the Evol models did even with the max amount of volume spacers installed?
  • + 4
 Reed Valve, Two Strokes ,mmmmmm
  • + 4
 all the way up to "full-blown" enduro race machines- Bravo Mike, bravo
  • + 1
 Why do comments get deleted? I commented that i thought it looked flimsy? Sponsor have the right to have negative comments removed?
  • + 3
 Oh, btw, it looks flimsy.
  • + 2
 @MTB-Colada:

It's a good thing looks don't mean much. It has a smaller, single wall Evol can making it lighter, increasing heat dissipation and making it look "flimsy".
  • + 4
 @MTB-Colada, no one deleted your comment - click on the 'below threshold' button on the bottom of the page. It received enough negative props that that's where it ended up.
  • + 2
 @mikekazimer: Ah, thanks, learn something new every day! Sorry for the accusation.
  • + 1
 Fox has seemingly copied the best tech from other brands, but the one piece of tech I'm waiting for is the replacement of the IFP with a bladder (ex. DVO Jade, CCDB Inline).
  • + 1
 it actually looks pretty nice, its pricey as usual, and i guess we'll see in 6mo if this is reliable and good enough since reviews rarely tell the whole story these days.
  • + 3
 $550...Shitter was full, Clark.
  • + 0
 Will this take a standard Fox Float dust wiper kit or will my shop need to ship it out to a lab just to do a seal service like the X2?
  • + 1
 All seal kits are available to all shops with a Fox account. Your shop just doesn't want to get into the damper as that's when things get complex and higher risk. That being said this layout doesn't require you to take apart the damper to replace air sleeve seals.
  • + 1
 @z-man: ability to order deal kits doesn't necessarily mean that they have the ability to do damper services. But thanks.
  • + 1
 "The shock has been silent and smooth." for real? is this a Mountain Bike Action (fiction) review?
  • + 1
 Looks really promising tup I might just have to replace the shock on my Bronson now ???
  • + 1
 Is it just an illusion on all the online pictures or is this a slightly different, darker color than the kashima fox forks?
  • + 1
 @mikekazimer ? In other words do fox kashima forks/transfer post not exactly match this DPX2?
  • + 2
 That Kashima coating looks better than ever
  • + 1
 "Metric Sizes available" Said Fox. You call them and they don't have Metric Sizes. HUH?
  • + 1
 Yeah its gonna be OEM stuff at first. I had this issue with my new Fuel. I wanted to get the new Deluxe for it as my fox re:actov evol was Le POOP took me a looong while to track down a metric shock
  • + 1
 Why are Fox forks and shocks so expansive in Europe, like 20-30% more than in US
  • + 1
 Import and protection tax... kinda the European Trump thing... but nobody is talking about that ????
  • + 2
 the us/canadian prices are before tax.....
  • + 2
 And what about rock show? They are European? @Trailstunter:
  • + 1
 @chris0711: Exactly, though you rarely see Fox's prices discounted while RockShox is often
  • + 1
 + they don't do any favours with not selling Performance Elite series of shocks and forks
  • + 1
 VAT ? which is around 20-25% depending on which country

@Trailstunter comparing taxes to trump? what?
  • + 1
 @Asmodai: Maybe, but then everything from US would be around 20% more expensive, but bikes from Trek or Spesh, RockShox parts and some others aren't so much more expensive, usually the difference is just the exchange rate between € and $
  • + 1
 @Asmodai: We make products more expensive which come from other countries... and with we I mean the government... Frown

Like Trumps does...
  • + 1
 @chris0711: Rock Shocks is as expensive as Fox in USA too?
It could be a pricing strategy... but that is guessing...
  • + 1
 @vid1998: it's not the exchange rate, for example in Germany you would pay 8000 Euro for the Rocky Slayer 790, whilst buying it in the US I would pay around 6500 Euro for it,
  • + 2
 @EagleOfFreedom: Yes, also Santa Cruz, Yeti and Ibis a shame tho since they have nice bikes. And then people question why direct sales bikes are having so much sold bikes.
  • + 2
 @vid1998: you say it.
  • + 2
 Also there is transportation costs but that is not so expensive... in Europe we have protectionism the same way as USA has.... but we are better in complaining in whining about Trumps measures... but we do the same for years over USA and Chinese products...
  • + 1
 @Trailstunter: that´s the problem. Something like TTIP without the lowering of the european standards would be appropriate, in terms of import. I mean, hey, especially in Germany we have a pretty wealthy export, so why not just import stuff with lower or no taxes at all?
  • + 2
 @EagleOfFreedom: well... TTIP is a freaking danger to human freedom as we know it... so never like TTIP but just an agreement of free trade should do it... but... that will be out of the question as far as I see it...
Buttt we have a great opportunity to build our own bike brands (look at the European brands the last years and the prices), and parts... see UK parts, but there are parts from all over Europe now.

Think in chances... Wink
  • + 2
 @Trailstunter: you found the right words for it ^^ a trade agreement was what I had in mind. And you´re damn right about the european brands, but I feel like they´re also pretty expensive, probably because they´re rare and still very small.
Well, we´ll see what the progress in the bike industry will bring us in Europe, there´s nothing else we can do.
  • + 1
 @EagleOfFreedom: They aren't so expensive in the majority (Orange, Mondraker or Liteville are out of this part), but they have quite outdated geometries. Yet the most extreme bikes in terms of lenght and slacknes are European (but small brands and expensive).
  • + 1
 @EagleOfFreedom: Rare and small?

Radon, Cube, YT, Canyon, Lapierre, and go on... all huge brands nowadays... and not expensive as the USA brands are...
  • + 1
 @vid1998: outdated geometry: yes!
I´m riding a 2016 Stevens (brand from Hamburg) Whaka, it was announced with a "slack" head angle of 67 degrees. Not saying it is bad, but for park riding and stuff it is not the best choice. Well I guess I´ll just save and buy a RM Slayer in a few years.
  • + 1
 @EagleOfFreedom: Similar with me, on a last years KTM Lycan LT, now deciding between Capra and Bergamont Encore
  • + 2
 Yeah totally understood those explaination diagrams!!!
  • + 0
 Recirculating oil in this form factor seems like a really complicated way to lower breakaway force. Not sure I see any advantages over a Rockshox counter measure spring.
  • - 1
 Counter measure is nothing but marketing. It only makes a shock feel better in the parking lot. It only helps reduce the feeling of static friction for the fist tiny bit of travel. It doesn't help reduce friction on the rebound or when actually sagging into the stroke. Fun fact, all vivids have always been twin tube dampers.
  • + 1
 I'm interested to see how this would be on my pivot 429 trail.
  • + 1
 I heard this thing will actually ride for me. Seems like a winner to me.
  • + 1
 Does this have shims like the float x or poppet valves like the X2?
  • + 1
 The Float X2 has both shims and spring backed valves for compression. This shock should be the same.
  • + 1
 @z-man: @MonsterTruck : Look at the diagrams provided in the article.
  • + 1
 @peterguns:

Yes, it confirms what I wrote.
  • + 1
 Will it fit in my 29er DH rig???
  • + 1
 $550 Bucksssss....
  • + 1
 So no live valve then?
  • + 0
 looks like a superdelux
  • + 0
 that's what i was thinking. looks like a gold super deluxe.
  • - 1
 I do not like how this looks, going for the super deluxe any day
  • + 1
 Based on looks. awesome.
  • - 1
 Holy FUCK this is AMAZING!!!!!
  • - 3
 I've owned a DHX 5.0 and Float CTD, both shocks have been utter garbage - what reassurance is there this is a good shock?
  • + 2
 None
Below threshold threads are hidden

Post a Comment



Copyright © 2000 - 2017. Pinkbike.com. All rights reserved.
dv65 0.110460
Mobile Version of Website