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Spotted: A Wireless Fox Electronic Dropper Post

Jul 29, 2024
by Matt Beer  
Fox Electronic Dropper

Whether you like it or not, premium components are shifting to wireless actuation and Fox looks to be the latest to enter the game. A keen eye caught this Kashima-coated dropper post with an electronic gubbin located above the seat collar - a different orientation for any motor components than RockShox's Reverb AXS.

Fox Electronic Dropper


On the handlebars, there's the expected wireless lever, but also two addition clamped components. A wireless pod on the inside of the brake clamp could be part of a system which pairs to an electronically synced RAD shock, which has been appearing on various racers bikes over the last two years.

It's possible that the shock's compression circuit could partially close, or completely lock out, based on the height of the post. This would allow the rider to control the threshold of the rear shock with more input than something like the RAD shock system, which relied on the pitch of the bike, measured by two more sensors placed on the front and rear axles.

The outer controller looks to have a bi-directional button. This could be an increase and decrease override selector to change the threshold of the shock independent of the seat post height.

Fox Electronic Dropper

We reached out to Fox for more information but they remained tight-lipped, sharing only the following statement.

bigquotesIn an effort to continually develop highly advanced suspension products, Fox constantly tests prototype components in the field under the world’s best racers. Some of these components – or parts of them – eventually make it into production, many of them do not. Testing in real-world environments is a critical part of how we determine what works best – not only for our professional athletes but ultimately for every rider who puts their trust in Fox products. This field-testing protocol is part of our proven and longstanding RAD (Racing Application Development) program. Fox


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180 Comments
  • 5061
 Is that a wireless Fox Transfer post or is it on house arrest?
  • 91
 I lol'ed
  • 230
 $999 I bet
  • 1181
 it beeps and alerts Outside when you go outside of your TrailForks region
  • 181
 yea its proper fugly
  • 10
 Technically both :-)
  • 112
 @artistformlyknowasdan: are the electric parts really about providing better performance or are they looking to increase market share with data mining customers phones? I bet sram is making a bit of change with the information gained from the transmission app.
  • 150
 @Compositepro: I got 999 problems but a Transfer ain’t one. Sold mine instead of paying 220 dollars to service it.
  • 20
 @SwiftFixBike: additional question: does it cost companies more resources, or require more tools to make a cable actuated system, or to make an electronic one?
  • 93
 @jimmyricard: it costs more to build a Tesla than a regular ford but Tesla’s stock is worth more than firfs because of all the data they collect on customers. Electric parts on bikes is the Teslafication of the industry. Consumers will fall for it but I think there’s actually a great opportunity for smaller brands to continue to make more reliable and lighter weight parts for people who aren’t suckers for marketing budgets.
  • 40
 @artistformlyknowasdan: or stops working if you're not renewing your outside+ membership.
  • 20
 Florida style!
  • 11
 @joni0001984: yep, it’s offensive what Fox charges
  • 20
 @SwiftFixBike: If they go full tesla there will be a monthly subscription fee to keep it connected.
  • 10
 @workinprogess: I think FSD is a few years away for bikes
  • 10
 @SwiftFixBike: I definitely had not considered that. Our local trail org installed counters that skim your data if you have a tracking app running when you cross by them and provide all information about you I'm their geofence. Yeek
  • 2803
 "We reached out to Fox for more information but they remained tight-lipped". you should have asked their seals they would have spilled everything
  • 250
 As an X2 owner, that's making me cry just a little bit...
  • 350
 @g-42: As an X2 owner, surely that would be 'weep'
  • 260
 Fox replied with this comment "squelch squelch"
  • 20
 @Mfro: Too soon...
  • 21062
 This wireless fad is annoying as all hell imo
  • 4616
 100% and creates so many future issues (profits)
  • 5643
 Came here to say that. It is just as annoying (if not more) as replying to this comment in my smartphone. God I miss dial disc phones.
  • 4648
 Ignore it and take interest in the many non wireless options. Also if it annoys you don't read and comment on the articles.
  • 494
 I don't have a wireless dropper (yet), but it's the one place I actually WANT wireless.

My current Reeb SST is all external cable routing, but hot damn the small section of cable that I have to run in the seat tube is a pain. So much of a pain that I delay dropper service for too long.

The second the wireless Revive is available I'm on board. It will be the first and only wireless item on my bike.
  • 148
 @mr-fabio: you know there exists such a thing as balance and not everything has to be taken to the extreme. Saying electronics belong in absolutely everything is foolish
  • 55
 So now we have electronic shifting, pedaling, dropper activation and suspension. I'm waiting for electronic brake, speed control and steering.
  • 4011
 I don't want to have to charge my bike in order to ride it.
  • 1040
flag warmerdamj FL (Jul 29, 2024 at 12:24) (Below Threshold)
 A fad is something that goes away, electronic bike parts will only become more common because they work better/more consistent and I bet are cheaper to produce with less moving parts, it's just a button and a motor. MX wheels are a fad, just like full 27.5 was.

With the new welfare version of AXS that SCAM just put out electric bike parts will be on department store bikes too in a few years I bet.
  • 298
 No one is forcing you to buy wireless anything. There's still mechanical drivetrains at the same level.
  • 146
 @alxrmrs: yep, totally agree and I don’t have anything wireless.

I called it a fad because I hope it doesn’t get forced upon us all eventually….but something tells me it is not a fad!

I’m open to things being better, but my anecdotal experience is that wireless drivetrain is no better (and arguably feels worse) than standard. This is purely what friends that have bought them have told me. They are all switching back to cable actuated, claim the feel isnt as good etc.

It feels like just another way to force us to buy shit, and not even with much upside (if any).

I’m just shouting into the void, it doesn’t matter.

Heading out for a ride to forget about all this crap!
  • 41
 @fabsmf: Too right! Places where dissent is not allowed always work so well.
  • 31
 @y0bailey: Agreed about the difficulty in running cable through the seat tube on an SST. Literally the only frustration I have with a basically perfect trail bike.
  • 141
 From all the electronic things the manufacturers are pushing, a dropper is the only component I think makes a lot of sense. It's easier to maintain, you don't need to loosen the dropper levers from the bars and in case you need to send it for service you could easily pick up one from another bike in the meantime. I will never have electronic shifting in my MTB and wouldn't even consider electronic suspension outside of XC racing. However, for the road and TT bike I will never go back to mechanical cause the benefits of electronic shifting are huge and I only need to charge the DI2 battery like 3 times per year riding on avg 10hrs per week. On a MTB I don't see any benefits of electronic shifting over a 1X mechanical.
  • 53
 Agreed - get a trusty OneUp or pnw ect and never look back
  • 51
 @RogerMexico: Can you elaborate? Its a hole in straight seat tube with no interruptions, probably one of the easiest internal dropper routings you can get. REEB trys to make any improvement that a customer brings up, so lets hear it!
  • 50
 @fabsmf:
The internet is a great place to complain about things - manufacturers actually read the PB comments. If you've got something to say, say it. It does actually matter.
  • 30
 @prosauce: I'll chime in...on my size medium, the transition from the external cable routing guides/clamps to the hole in the seat tube is a bit of a "tight turn". I often catch my cable housing and it's not easy to feed.

Some of this is "self induced" because for some weird reason I try to keep all of my cables inside of the shock mount/bracket to keep it looking tidy...but it's still a bit of a tight turn no matter how I run it.

The second issue is just the simple fact of having to loosen all of the external cable housing bolts to give the dropper cable some play to remove it. The forward most one is a tight squeeze and annoying to get at, all of the cables then just fly all over the place...all so I can just pull my darn dropper out and service it.


That second issue is just the nature of the beast of external routing...but it's still a PITA to turn my handebar sideways (or disconnect my dropper lever), loosen all of the bolts on the external guides, have cable spaghetti, and still have to guide the dropper cable while pulling the post because it catches on the edge of the hole.

A wireless dropper would take my only complaint of working on this bike away (well that and my rear tire slowly rubbing through my seat-tube).
  • 182
 E-waste being born daily.
  • 131
 @nvranka: I was thinking of wireless shifting as solving a problem I didn't have. So when I bought a bike that came with GX Transmission, I thought I'd give it a try, and then sell it and replace it with XT. I've been riding it for a few weeks now, and I no longer think that. Mind you, if someone broke into my garage and replaced it with XT overnight, I wouldn't cry a tear. But I also don't feel the need to go through the hassle of replacing it, even if I could come out a few dollars ahead that way.

The stuff just works. It's been foolproof to setup, micro-adjustments are really easy (only needed one right after setup), and it's been set and forget since (after only about 20 hours of riding so far, mind you). If you're on it, you can shift faster on XT. But that requires a bit of attention, whereas the AXS stuff is just doing it, no drama. I don't ride in places that are uber rocky, so the more exposed derailleur isn't that big a deal for me. Not ever having to use my derailleur alignment tool again seems like a nice bonus, but it's not like I had to do a lot of that before.

So no, it's not the insane must have break-through the SRAM marketing hype would have you believe, but I'm no longer thinking wireless shifting is the downfall of civilization. Given how much cheaper it's going to get over time, it may turn out to be a small but not insignificant net positive.
  • 23
 @g-42: well at least you feel it’s at parity to cable actuated offerings. I haven’t met or spoken with anyone who felt that way yet, they all feel it has a bit of a delay or some other quirk that just doesn’t feel quite as good.
  • 11
 Consistency is the name of the game.
  • 21
 @mr-fabio: I have a bag phone for you
  • 30
 @alxrmrs: The Stumpy15 would like a word with you. ..
  • 10
 @y0bailey: once the housing is in you probably never have to deal with that again....???
You may need to side the housing alittle for maintenence and change the cable some day. But that one time installing the housing ang getting past that little bend is hardly a reason to "need" a wireless dropper...
  • 20
 @dick-pound: if only they came in shorter than cable operated droppers insertion lengths. That is the benefit I would pay for.
  • 21
 @warmerdamj: I agree that electronic parts are not a fad. Are they cheaper to produce?? Not sure about that. However, do they work better, I'd say for the most part, yes.
However 27.5 wheels were not a fad.
The UCI changed the rules allowing Mixed wheel setups. 29 wheels just roll faster, and with gravity bikes, the 29er never caught on until Greg Minnaar did it. Alot of smaller races like Troy Brosnan stayed on the 27.5 wheel u til the rule change. So was it a fad? No, because it was an evolutionary step.
  • 30
 @stiingya: to remove the post you need slack in the housing, so while you aren't fully removing the cable from the frame, you still have to do everything I just listed, and it's the most annoying chore on the bike.
  • 40
 @warmerdamj: I disagree with your comment, but will start calling SRAM "SCAM" from now on. Thank you.
  • 10
 @y0bailey: I'm also not so patiently awaiting the wireless revolve.
  • 10
 @alxrmrs: SPECIALIZED IS! If you want the new Stumpjumper. Only come wireless. It no longer has internal or external cable routing. Only AXS. Lame.
  • 10
 @FaastEddie: then dont buy it
  • 10
 @y0bailey: I hear you 100%. I have a Knolly Ty Ti hardtail and the wire routing internally is medieval. I like the RS offering but want the Kashima for completion, with the Fox fork. IF they make it, I will buy it.
  • 688
 It’s already got a warranty case open.
  • 340
 Suspiciously high-quality spy shots Wink
  • 352
 Our spies have nice cameras. Smile
  • 44
 @mikekazimer: Honestly, props to anyone bringing a camera to a bike park; they're far braver than I
  • 13
 @theshortestcharles: and props for bringing such an amount of technology to a bike park... for what BTW?
  • 100
 @theshortestcharles: Im guessing this is from Crankworks in which case the park is crawling with professional photographers
  • 170
 More amazingly the pinkbike social media account shared a pic of that park bike with the 0mm cranks/foot pegs a few days ago which had this seatpost in and yet conveniently cropped it out…
  • 50
 Full long term review coming in the next days
  • 11
 @mikekazimer: truly hard to spot, with the giant ERGON logo emblazoned across the saddle haha.
  • 231
 I'm just holding out on Fox to release their wireless, batteryless, kashima coated handlebars. Should definitely improve my riding experience, making my bike slightly more aerodynamic as the wind slips over the kashima coating slightly easier.
  • 21
 @joni0001984: Kashima handlebars exist, Race Face sell them
  • 10
 Kash Money!
  • 210
 Battery placement seems kinda weird but weren't there a good few bikes that had rear wheels buzzing the battery of the AXS dropper when pushed down?
  • 260
 Yes, simply put it in front avoid this trouble.
  • 48
flag bogdan75 (Jul 29, 2024 at 12:53) (Below Threshold)
 @knightmarerider: nothing stops you from turning it aournd. just need to flip the seat rails around ... they come out.
  • 50
 @bogdan75: I believe the seat angle is heavily limited when turned around. Seth (berm peak) has a video where I believe he has to cut or drill something to make it work backwards, which voids the warranty.

A few pro riders might have special versions, or they do the same thing Seth did. Perhaps it will get fixed in the future, but current riders with axs droppers cannot just spin it around. I still think it's one of the best droppers on the market after using it, but just wanted to point out it may not work well for all bikes.
  • 20
 Also when you think of drag lifts, which are quite common in smaller bikeparks in germany and austria (i don't known for the rest of the world)
  • 41
 @MartinKS: people who buy axs posts only go to Sölden to ride flowtrails anyways
  • 10
 @Upduro: Yawn. Have you ridden Fernar, Nene, or Olm Volle in Sölden? They have some serious terrain.
  • 20
 @luca-thekid: did all of those. Not a jab against sölden but the flow trail rad dads on their overpriced bikes with full face and sunglasses lol
  • 180
 Does that security block need to be removed by an employee before I walk out of the store with one?
  • 150
 This new post could be yours for the price of 3 PNW posts and no lifetime warranty!
  • 40
 In all seriousness, I'm fine with wireless but with the cost it will never work with n+1 for me. Having 3 different genres of bike (xc/trail, enduro, dh) is way better than one top spec space plastic wireless superbike imo. Added bonus they all share parts so no missed rides.
  • 110
 The Rockshox AXS Reverb v2 is putting the battery in the same location per a recently discovered patent filing.
  • 65
 ... and nobody likes that.
  • 70
 @mrti: Eh, I'm not worked up about it if it reduces the stack height per travel. I think as some other people have said that it would be nice if the battery was facing forward instead of back. I wonder if you could just do that somehow...
  • 40
 @WheelBased: That's the one. And delightfully, the battery points forward in these renderings!
  • 10
 @f*ckingsteve: if Fox's design has the battery facing to the back cause SRAM patented it being forward facing Im going to cry
  • 20
 @mtmc99: either way, it's gona look pretty bad to have that clump of battery sitting in the middle of the seatpost. Even more so when it is not slammed.
  • 10
 @f*ckingsteve: richie is running his with battery on the drive side
  • 102
 Lower stack height > wireless in my mind, if they can reduce that stack in the production version (and can get close to OneUp/PNW price + ~$75ish for "wireless value") then this could be interesting.
  • 10
 Yeah, completely agree. At the moment I only have one up as an option as I'm limited by stack height and current wireless droppers are worse in this respect. If by putting the electronic around the collar they have dropped the stack height inline or better than oneup then this will very much be on my Xmas list irrespective of price
  • 20
 @rojo-1: Yup. I mean realistically it'll take a lot to get me away from oneup, which is probably why Fox is focusing on wireless.

If this initial version is 200mm+, they'll have a nice little advantage until SRAM catches up...at least with the longer-legged ka$hima fiends.
  • 20
 @robotdave: And Fox's post have never been loved like their suspension. I've had two and sold them quickly. I'd rather have a bike yoke or oneup.
  • 10
 @foggnm: but...but...kashima!
  • 61
 With a likely introductory price of $600-$750, I'll probably (I will!) pass on it and complain about how dentists can only afford to buy one, but secretly, I'll be envious and wish I could afford one, then I'll call my parents and tell them I'm disappointed in them that they were too low middle class during my upbringing and couldn't send me to med school or vet school.
  • 60
 Wireless dropper is high on my list of things I wont buy myself but I would be super happy to have
  • 30
 Info leaked on this post months ago. According to the retail webpages getting ready for it will be starting at $860.

www.mtbr.com/threads/new-fox-wireless-dropper-on-the-way.1230805/?post_id=16231373#post-16231373
  • 72
 Honestly Archer components should team up with PNW or One Up and make a wireless adapter for droppers like they do for shifting. Would be a huge win for people who are wireless curious but don’t want to sell a Kidney. make it happen.
  • 30
 Archer is unfortunately going out of business. But their wireless conversion kits were more than I had ever paid for gently used wireless/electronic system so that's probably a better way to try it out, plus not really lose much money if you decide to resell.
  • 168
 Well this is not what the people want
  • 201
 The people need kashima coated handlebars
  • 12
 @devinkalt: in 31,8 diameter, such as the one I still have on my hardtail. Bomb proof and elegant. What else?
  • 32
 @danstonQ: bot?
  • 21
 @devinkalt: bot yourself sucker. Didn't you hear about Race Face Atlas "Kashima series"?
  • 10
 @danstonQ: my apologies, must be the language translation. Yes I remember those
  • 10
 RF kash money (?) bars look great! had them on my hardtail before going back to carbon.
  • 20
 @devinkalt: Nah, kashima brake rotors
  • 10
 @sfarnum: kashima coated brake pads too
  • 70
 1Bike yoke
2Bike yoke
3Bike yoke

The top three posts I’d put on my bike.
  • 20
 There will be a wireless Bikeyoke post too.
  • 104
 So the wireless seatpost could be hacked from the outside??? Asking for a Friend...
  • 114
 Lol, imagine pushing your buddies seat post up on gnarly downhill section
  • 60
 Not a bad way to spend $10,000
  • 30
 And then $200 once a year to have it serviced by Fox... At least it's easy to remove and ship
  • 20
 Ok i'm down with wireless droppers if you own multiple bikes. Can just swap it between bikes depending on which one you are riding. Let's pretend you have 3 bikes, and you buy a nice dropper post for each bike. Thats gonna cost you around the same price as one wireless dropper. PLEASE BE A 200mm or longer option.
  • 51
 It would be awesome if you could route a cable dropper externally and get the same results for about 20% the price of wireless…(turning sarcasm off). Too bad everyone wanted internal routing…
  • 20
 @SprSonik: haha yup, I actually had decent luck with my KES externally routed dropper...when 150mm was game changing.

Easy to pull off for park/jump days.
  • 40
 If you have 3 bikes you can have droppers on all 3 bikes
  • 20
 Assuming they all have the same seatpost diameter... and you want the same dropper length on all the bikes.

Or you can get three cable actuated dropper posts for the (likely) same price as this one.
  • 20
 @SprSonik: with some bikes that's entirely possible with internal routing, too. Just pull out the cable, detach the post and reinstall on another bike. In reality people are just going to buy another dropper.
  • 30
 @stevemokan: and same effective seattube angle. Otherwise, you'll need to readjust seat tilt every time you want to ride a different bike.
  • 40
 The only thing that freaks me out, e bike with all wireless that required independent battery for everything, without tapping into main battery?

5+ batteries per bike
  • 62
 Wireless droppers: Incredibly expensive, ugly, you need to charge them but one less cable. Your choice.
  • 10
 apropos of nothing, I hope we see more great XC-specific droppers come to market. More 100mm 2-pos spring operated droppers! electronic does not really appeal to me, except for in my older bikes with no dropper routing. But even then, I'd prefer a cleanly routed external dropper like the PNW Pine.
  • 10
 I don't have a wireless dropper (yet), but it's the one place I actually WANT wireless.

My current Reeb SST is all external cable routing, but hot damn the small section of cable that I have to run in the seat tube is a pain. So much of a pain that I delay dropper service for too long.

The second the wireless Revive is available I'm on board. It will be the first and only wireless item on my bike.
  • 10
 Are the Ergon saddles with the large letters on the side an old style of saddle, or are they available for purchase new, or do they only give these saddles to sponsored riders? I like the look, but have never seen one for sale.
  • 51
 Well doesn't that look fox-e.
  • 20
 Why would it face the spray from the back wheel instead of pointing forwards and being a little more protected? Some kind of neoprene sock accessory?
  • 63
 "Whether you like it or not" ....seriously bike industry, GFY with your useless technogadgetry.
  • 20
 Look at that low stack height! Only reason I don't run AXS dropper is because the stack height is like 3"! (and the cable dropper works just as well)
  • 20
 Fox Transfer Neo. The cat has been out of the bag for months....

www.mtbr.com/threads/new-fox-wireless-dropper-on-the-way.1230805
  • 30
 It's okay review is coming tomorrow.
  • 42
 If they make a 240 (270?) I’m in. Will gladly pay a few hundred buck to never have to faff with dropper routing again.
  • 31
 Oh the irony of making things more simple by making things more complex. And costly.
  • 20
 Can't wait for the wireless wired dropperpost that connects to my ebike battery..
  • 10
 Man I hate battery doohickies on bikes, but at least I can dry my tears with the cash that I saved by not buying a ton of battery doohickies for my bike.
  • 11
 Whatever dropper length you would want in this, you need to buy 20 mm shorter because the battery takes up the last 20mm. Rockshox battery placement is better because you can use the full length of the drop.
  • 98
 That is one fuggly dropper post! Would love to hear what the "I hate kinked top-tubes" gang has to say about this one haha
  • 20
 you had me at minimum insertion
  • 10
 That won't break when it hits a rock. I mean... who has ever scratched up the collar on a dropper post?
  • 20
 I'm gonna wait for the Marzocchi version. Fingers crossed...
  • 10
 If we're going the route of wireless MTB components, let's integrate GPS too so we can catch the wankers stealing bikes.
  • 31
 This stinks of shareholders
  • 30
 Dildos require batteries
  • 10
 Battery should have been facing forward to be out of the place for all the muck coming of the rear tyre
  • 10
 Fox being tight lipped not to share answers on an open book test.
  • 10
 Rumor I heard is it's getting announced tomorrow.
  • 10
 I bet this will make me faster
  • 36
 I love that the bike companies continue to develop technology despite the old people complaining. Can you imagine if Apple listened to these same people while developing the iPhone? "I want a keyboard like my Blackberry...I can't live without my Blackberry! The tactile feel is everything!"

We are obviously on a path to longer travel bikes pedaling better and shorter travel bike descending better. Having suspension firmness tied to dropper height is a great idea...bring it on!
  • 10
 Batteries in the back? C'mon man!
  • 10
 Baggy shorts will definitely not get caught on that protrusion.
  • 10
 Where’s my podium gold???
  • 14
 People saying they don’t need or want an electric dropper or it’s pointless are missing a key potential advantage for a wireless dropper. If done right the actuator is not in the bottom of the post so now you have more room to fit a longer dropper on frames with clearance issues. This becomes even more common with e bikes since the motor takes up seat tube room. Looking at the image though it seems Fox already screwed up (maybe) just like all the others putting the big bulky battery in the back right where a 29” could hit it. Luckily I run MX but still why do all keep putting the battery on the back when there is ton of room in the front and nothing to interfere.
  • 50
 If your wheel is hitting your seat post there, you have bigger issues... like a cracked frame
  • 10
 @wikij: I personally haven’t had that issue but check Seth bike hacks when he tried modding a reverb because his wheel was hitting the battery out. Some long travel frames with 29 wheels it gets really close back there. Point is what’s in front? Nothing, what’s in the rear? a wheel traveling up. Why risk a potential problem when it doesn’t have to be that way.
  • 10
 I bet it comes with a maximum of 170mm, weighs a ton and works for days
  • 10
 Note to anyone at Fox who might bother reading this: 200mm drop please.
  • 10
 Im Happy with my One up V3 dropper ✨
  • 10
 Had a V1 for 5 years now, still going!
  • 10
 I need a new keyboard now after vomiting all over it. That thing is AWFUL
  • 10
 You might need bird spikes on that thing.
  • 32
 Dumb
  • 10
 duplicate
  • 13
 Just integrate everything into the ebikes battery at this point and add a throttle. It's all just a fashion statement to ebike dorks anyway
  • 10
 Batteries not included.
  • 35
 In a world where Bikeyoke exists, why would you need any other dropper?
  • 46
 Because bikeyoke sucks. Doesnt work as nice as oneup or other much cheaper posts
  • 33
 @Korbi777: Sounds like a skill issue on your part
  • 32
 @Korbi777: agree 100%. Garbage posts. I'm convinced the revive function was invented to fix a design flaw. No other post I've had needs that function. Revive is the only one that gets spongy and needs to be revived constantly.
  • 20
 @brighterlights: haha so you have skill issues too, what are the odds
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