How To Service A Slow MTB Dropper Post | Mountain Bike Maintenance

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When dropper posts are working as they should, they are one of the best components on a mountain bike; but, they do need a bit of looking after to work their best. A question that seems to come up quite frequently is about why dropper posts can feel sticky or slow. In this video, Doddy shows you a couple of ways that you can resolve this, a quick fix and a full disassembly and service 🔧
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Опубликовано:

22 янв 2021

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Комментарии : 316

@DeadsetYT 3 года назад

When mine gets stuck I just spit on it and call it bad names. Works 60% of the time all the time.

@samg9055 3 года назад

Anchor man- brilliant film

@timbrassinne719 3 года назад

I spit on it as well, just not from my face.

@incognitoreuploads4991 3 года назад

@@timbrassinne719 💀💀🤣

@mrfrogg46able 3 года назад

i throw my shit over a cliff then i retrieve it and it rides great.

@SE-hi3my Год назад

But what do you de when your dropper post gets stuck 👀

@petedog9581 2 года назад

A main culprit for a sticky dropper post is often people over-tightening their seat post clamp beyond the proper torque specs. Get a digital torque wrench drive. 3/8 drive was $100 on sale from an auto wholesaler. I never realized how often I needed it, until I bought one.

@Alexandros_Patsialidis 3 года назад

Hey Doddy, we desperately need one vid for the new fox transfer. There is NOT A SINGLE VIDEO on YT 😭😭😭 Thanks a ton for your great work 🙏🏼💪🏼🤙🏼

@trailfoxx 3 года назад

yess i neeed this! my transfer stuck in the last 2cm

@TPV07 3 года назад

Not gonna happen, leave that alone. Reverb and transfer only at service centres.

@TurboTev 3 года назад

@@trailfoxx try not having your clamp bolt too tight.. I've found there's a fine line.. to tight it stops just short and to loose the seat moves.. but find it and should work sound 👍

@tzed2509 3 месяца назад

As a new owner of a used bike and my first dropper, I thank you for this.

@justinv.1573 3 года назад

Thanks dude! You're a total legend who has saved my butt more than once with your top-notch videos.

@katakis1 3 года назад

I started noticing that problem 3 days ago and now here you are with the fix!

@Gee-1979 3 года назад

Thanks Doddy, legend. Just followed your guide yesterday and totally fixed my post! I used SRAM butter as well, and Rockshox 0W suspension fluid. Turns out I'd sprayed far too much silicone spray into it over the last year and it was absolutely blocked with residue. Was so slow before this that I was thinking about getting a new post. Instead, just $38 (NZD) and an hour of my time. Legend mate.

@jgsimons 3 года назад

It is like you were riding behind me the last couple of rides and saw the problem I was having with my SB150. Thanks for help!

@drmoynihan Год назад

Thank you so much for helping me Doddy. Right after my ride today, I was able to go to our Coop - the Bicycle Collective, where I used SRAM BUTTER as you instructed, and now my dropper post is working very smoothly. :)

@Icantfindtheanykey 3 года назад

Excellent work and vid Doddy. Brilliant as always. My eyes were glued to the screen the entire runtime. lol

@Jean-jk4zv Год назад

Just did it the easy way, dropper is like brand new 👏🏻 thx doddy

@Graeleaf 3 года назад

Thank you Doddy! That is extremely helpful! I am going to add this to my yearly maintenance! Woo! 🤘

@bmdt81 3 года назад

This was really helpful, thank you. I have a raceface post that starts off each ride fairly quick but then gets very sluggish.

@bradgreen9263 3 года назад

fixed my dropper as a result of this. Thanks for the content - much appreciated

@levitj5948 3 года назад

Just got my first dropper. Very much Worth it

@lozetchells9164 8 месяцев назад

Really useful thanks Doddy, you are the Edd China of the bike world!

@marcohillenbrand7039 3 года назад

That's exactly what I needed to know right now. Perfect timing, thanks a lot! Great video!!!

@mtbcanyon4108 3 года назад

Me to

@arseniecatalin6493 6 месяцев назад

Nice to see proffessionals at work👍!

@winklertribe5268 3 года назад

Excellent timing!! My dropper post recently stopped working well.

@tim__sadler 3 года назад

Another perfect reference video. Top Work!

@gatoryak7332 3 года назад

Smooth...like liquid butter. That's what happened to my dropper post when I did what Doddy prescribes here. BTW, While I was at it, I replaced the internally-routed actuator cable. Also very easy, but I did invest in a Park cable cutter. That investment paid for itself right there on its first job. Now I am free from bike shop waits and high costs for all my future cable replacements.

@cb6866 3 года назад

Thank you Mr Dodd. Be safe mate!

@matiasestrada9568 3 года назад

Excellent video Doddy, I'll try this myself.

@bensimon8646 10 месяцев назад

I just added a bit of chain lube to the seal of the dropper and that also helped plus quick fix!

@JohnBoyd-vc6sk 2 месяца назад

O in

@jean-baptistebrionnaud7318 3 года назад

Nice vid Doddy! I appreciate it. Thanks for your help.

@wytse87 3 года назад

Heyy great video! Please make one for the Fox transfer 2017-2020. And including hacks for the many, expansive specialist tools for the job. Cheers

@Paulo-fr3xm 3 года назад

Spot on that Doddy as have both posts 👍

@haji178 3 года назад

This was so helpful! Gold Thanks a lot. Got my raceface aeffect working like new again

@megabowzer100 3 года назад

Thanks mate.my dropper post has developed a side movement which throws me of balance sometimes so this clip will really help me out later.thankyou

@rayd2420 2 года назад

So good. Thanks. Used slickoleum and had some fork oil. Did it literally 15 min before the ride and dropper was fixed.

@FirestormAA 3 года назад

Awesome step by step video! Cheers!

@stephenbrown5844 3 года назад

Cheers my friend, fantastic tutorial 😁👍learnt a lot for my dropper 😉👌

@a8str4ct Месяц назад

just went out and cleaned my post after years of putting up with its slowness...thanks for this tutorial. worked perfectly with minimal tools and just a little lube.

@elmomos 3 года назад

Thanks for including also Brand X in the tutorial! Talking about your cave, can you tell us more about those limited edition Steve Peat beers?

@roythearcher 3 года назад

a useful guide especially as I'm looking at getting a Brand X post!

@jonnywilson9117 3 года назад

Had my bike since November 2017, like a loser, I've never given the post a proper service, just a little clean. So never had it fully apart to clean the lower section. It's a tad on the slower side with a good long scratch at the back of the post that's about 6 inches long. Yes, bad, I know. Less than ideal. I'll tell ya what though, It's a perfect dropper. Can't complain, especially since a new one isn't all that expensive. Well worth the money in my opinion. (Yes I should've serviced it by now, but couldn't be arsed. Replaced my Pivot and wheel bearings instead...) I'll get to it. Lel

@jackluckett5746 3 года назад

Just what I needed

@dosetti Месяц назад

Thanks Doddy just did mine.

@MrVanengelenhoven 8 месяцев назад

Thank you very much, your a good teacher. Keep on being a legend.

@martinschuster3001 6 месяцев назад

An EXTREMLY good Video. Everything excellent explained.... This Video helped me a lot to maintain my Dropper Seat!!! Great job. Thx a lot! :-) Nice greetings from North Germany

@MehmetSevil 2 года назад

This video tipped me over from my hesitation of self maintaining my two dropper posts to actually taking action. It was amazing how much muck has built up over time. They both work like magic now. Big big thanks for your thoroughness. Watching the manufacturer's videos had made me think I'd need LOTS of specialized equipment. It was nice to see I could make do with what I had lying around in my workshop. Happy subscriber here! :)

@dudeonbike800 Год назад

The bicycle seat post is the perfect "much catcher!" As are seat tube clamps & slots. I've utilized old inner tube over many of my bikes' seat post clamps. So much dreck flies right off your rear tire and onto (and into) your seat post, slot, clamp & clamp bolt. Can't really protect the dropper very well. I GUESS you could try some sort of accordion boot (like front shocks of old), but I just know it would foul anyway - and make proper bike stand clamping difficult or impossible.

@Sibert_ 3 года назад

Doddy time! Perfect Saturday morning.

@richwaight 2 года назад

Super useful! Thanks so much :)

@pierrebroccoli.9396 3 года назад

Thanks Doddy, something I need to do with my Bontranger Post. It's a bit gunked up and as a result slow moving and sticky. Need to get a grip wrench though to undo the seal/bushing.

@Sibert_ 3 года назад

Sick Lux you've got there :O

@davehahn9306 Год назад

Really valuable, thank you

@seandavis007 3 года назад

Thank you for shaving the mop off! Got a little hard to watch with that thing on! 😂 Love the content tho, keep up the good work!

@francescoschiavo7315 9 месяцев назад

Thank you, very useful info....👍👍

@mrd6093 Год назад

GREAT HANDS ON REPAIR DEMO YOUR SKILLED

@silys5253 2 года назад

Awesome video! Thanks

@odelld9004 3 года назад

Great video, thanks.

@SvenfromKiel 5 месяцев назад

thanks..this is very helpful for me as I ordered a brandnew PNW Loam/DXC DP which I give this procedure from the beginning. It is a bit different but use "brass keys" but same technology. Instead of SRAM butter I have good experience with RSP Slick for my Suspension Forks and actual dropper. It feels a bit thinner. By the way I bought some years ago 2 new Rock Shox Reba which were already dry inside and so I am a bit carefully with new things like this...thanks again!

@thomasdove1083 2 года назад

Am rocking the audi s1 Quattro! Thanks for the vid aswell

@rideitmtb 6 месяцев назад

Had a go at the quick method today on my x fusion manic. After 3 years+ of all-weather abuse i was surprised at how little dirt was actually inside the upper seal. Bit of lube and a clean-up around the shim and O ring and its defo less lazy on the pop now. I was lucky enough to unscrew the outer using just a thick rubber glove too hehe! Quick clean of the the wiper and post itself after every ride has proved to be a good habit…

@pickup000 3 года назад

Great video👍

@RossiDeakin0406 3 года назад

That Lux ls a beauty, the white and blue frame, with skin wall tyres.... 🤙👌👏👍

@Hihopeyouhaveawonderfulday 3 года назад

It’s just a bike relax

@The_Real_JN 3 года назад

@@Hihopeyouhaveawonderfulday it's not just a bike, let him like it

@mrplow911inc 11 дней назад

If you don’t have a vice or bike tube clamp, you can install the post back into the bike and tighten the seat post clamp. Then use the bike as a vice.

@smoothisfast6644 3 года назад

Thank you for this video. I’ve had terrible luck with droppers and my lbs won’t service them and sends them to the factory. Please consider doing a full install video. Thanks again.

@tomm6962 3 года назад

Just in case it helps someone; some of the brand x droppers don’t have a nut under the seat but a valve for topping up the air. There’s a metal plate with four rectangular cut outs. This is threaded onto the valve and can be unscrewed to allow removal of the cartridge using slim needle nose pliers into the rectangular cut outs.

@danh925 3 года назад

Nice! The ascend dropper post on my vitus won't fully extend and I was thinking it was time for a new cartridge, I'll give cleaning it up a bash first.

@gpearce11 3 года назад

Very helpful and useful. A follow up with a Reverb and Transfer, the two most popular hydraulic posts, would be awesome. Also, thanks for specifically showing a BrandX post, as BrandX/TransX are by far the most common OEM dropper posts on the market, especially on the lower end.

@jpg6482 3 года назад

Been looking for a vid on this

@hedemalmcarl 3 года назад

6:37 the best thing sbout crankbrothers pists i have one is that when its tight enough it has a defined feel where you know you should stop when you can feel you shouldnt tighten anymore.

@WBOS72 2 года назад

Thank you so much - servicing my Trans will be far easier.

@andysrange8789 3 года назад

Quality video

@dudeonbike800 Год назад

Thanks! Funny because I just serviced a guy's bike by replacing his broken cable, cleaning & lubricating the lever mechanism, new housing, flushing the mud out of his seat tube & BB, but the Fox post is still sticky. Been meaning to unscrew that top seal, but always wondered if it would go KABOOM! (Was pretty sure it wouldn't, but didn't want to open a "can o' worms.) Off to the shop to perform this little bit of magic...

@andrewcornford2306 3 года назад

A third type is air / cable. That air the in top with the valve under the seat runner clamp, normally max 250psi. With the cable release on the bottom. Another great video though Doddy.

@markwilliams-gr7mj 3 года назад

as a 51 year old not used to all this hi tech equipment on our steeds i installed a dropper post that worked quite well for a few months until it became so slow i was tearing my hair out until i saw this video earlier today so if i ever meet you in the street i will quite happily shake your hand (when all this covid) is out of the way

@aeronphillips8576 3 года назад

Just the video I needed. Should I remove the pressure from the cartridge before pulling the post apart? It looks like I don’t need to. Cheers

@jakoballes4882 3 года назад

Could you do one about the fox transfer

@chrisridesbicycles 3 года назад

I would like to see that, too.

@archieansell9160 3 года назад

Like Doddy said "fundamentally they're the same". Its the same principles no matter the model or brand

@chrisridesbicycles 3 года назад

@@archieansell9160 He mentioned the 3 different sytems. I guess there are some more seals to grease in a non-cardrige system like the transfer.

@willkence7745 3 года назад

Yeah the transfer is semi- hydraulic not cartridge

@fabian5422 3 года назад

I worked at Fox and let me say the transfer is not an easy thing to work on! Especially because you need some special tools and a good knowledge! If you have problems with the transfer sent it to fox and they can help you!

@jay_pozz4222 3 года назад

Just a side note love the tan wheel walls👍 I should have got them for my bike dam☹️

@adapta 3 года назад

Am I the only one who noticed that Doddy put the outer tube on the wrong way round on the Crankbrother's one? I mean not that it would matter... Just had to check mine as a reference ✌️😁

@gregwebster8784 3 года назад

Dobby is the raddest

@markorrico2779 3 года назад

Could you do the Rock Shox Reverb next? I know it’s been done before but not by you I don’t think 🤔 😃

@florianzimmermann3815 3 года назад

Have a look @Butter Suspension. His reverb rebuild ist amazing!

@giorgio_abruzzese8232 3 года назад

Send it to special Dynamics suspension the reverb is fully hydraulic and requires the damper to he bled if it needs to be actuated quickly I sent mine and it came back feeling brand new for just £55

@danimayb 3 года назад

Reverbs are more hassle than their worth. A lot of money for a fragile system that ends up needing more attention than others, And certainly not a post to go for if you are gonna rely on a bike shop for any work! Throwing money away at that point.

@martinfeeneyUT Год назад

Getting to this video now and thank you . That 10mm bolt at top spins with cathridge has any one got any ideas?

@stevebennett3587 Год назад

👌great video as always👍🤔ive got the brand x ascend and sometimes the stock brand x lever sticks😏so ive ordered a shimano dropper lever an cable🤔hopefully this will sort it🤣

@bmichael291 2 года назад

Sure would have been cool for the greases to be placed in the description

@spuddo123 3 года назад

Would WPL Forkboost lube work just as well instead of a suspension oil (and if not what weight oil should I use?)

@mikekeen9710 3 года назад

my dropper post head the unit that the saddle sits on creeks can it be tightened or lubed? from new zealand. keep up the awesome work

@Icamas 3 года назад

Ran my BikeYoke Revive for 2 years without service. apart from lubing it a bit and keeping the seal clean. I didn't touch it. reset it a few times but not much. took it apart before I sold my bike and replaced the seal, cleaned it, put some fresh suspension grease in it and it was like new again.

@growler477 3 года назад

G'day Doddy, love the show. I have a 2021 Trek Fuel EX5 with the Rockshox Redon Gold forks with 140mm of travel and i was wondering how i can get them up to 150mm? Cheers legend!

@roymurray8782 Год назад

Nice

@Nando_ Год назад

mine doesn't go full extension without a handy help... I'll try it!

@MRLIROCK 3 года назад

My new XLC-dropper got stuck during the first snow ride this winter. Fully disassembled it, cleaned and greased it up. Works perfectly. I also did the inner tube hack. Also the internals of the XLC look exactly like the Brand-X ones.

@bauke-LV426 3 года назад

Nice one again doddy, thanks. #askgmbntech can you do a video on what the "obvious" places on the bike are, where you could expect cracks in the frame etc. Every now and then, I scan the bike when I'm washing it, but I'm curious where hairline cracks (or something) are likely to occur. So I could focus on those area's a bit more and therefore decrease the change of dying. Thanks!

@-Alex- 3 года назад

Do you have any tips of getting your chain off that has a master link if you don’t have a chain tool?

@diekloon 2 года назад

Newer dropper posts also requires you to add air. Remove the saddle, there should be a valve like with the shocks and pump it up with a shock pump. The psi range should be printer at the top of the post.

@mx5matt 3 года назад

Does adding or removing air pressure affect speed at all? And if not, what does pressure affect?

@Pdeberar 9 месяцев назад

What suspension oil do you recommend using and I noticed on the bottle in this video it said Muc Off. Any specific version that you were using or that you recommend?

@cormacjordan7173 3 года назад

Nice Lego Quattro S4 Doodles!

@rossd5936 3 года назад

Hello professor Doddy could you make a video showing how to service a hydraulic post? Perhaps specifically a rockshox reverb? Thanks!

@dunadan112 Год назад

Hey, great video. One question I have is, what kind/type of suspension oil do you use for the fast maintenance? It's somehow sticky.

@jazzmobile123 3 года назад

Great video! Can you do the same for a Rockshox Reverb?

@DB-zh4vw 3 года назад

After riding on a Giant cartridge dropper for two seasons, I figured it was time for a cleaning and tune-up when responsiveness began to slow down. Discovered to my horror that the aluminum dropper had cold-welded to my carbon frame. Several trips to various bike shops brought no solution. Damage to either the frame or to the post without it being removed would make the bike useless. For now the solution is a hacked clamp around the part of the dropper that telescopes essentially keeping the post fixed in place. Frustrating, not great but still rideable. It would most certainly have been part of my regular maintenance routine to loosen the dropper to avoid this if I'd known about. So, just a heads up.

@Snipeonz 3 года назад

My friend's dropper would always get stuck on the last 5mm of travel. Pulled it apart, black crap everywhere. The top bushing was also really scratched up due to all the crap inside. Fella kept using wet lube on both the stanchions and bushing. NEVER use wet lube. Just like you won't use wet lube on your forks, invest in the proper suspension grease. In fact, I'll keep away from oils too. Unlike forks and shocks, there's nothing preventing the oils from just dripping out of your post and pooling somewhere in your frame.

@pgjudo 3 года назад

Just got a new bike with a Fox Transfer and it has the same problem brand new. Miss my Reverb. 😐

@Snipeonz 3 года назад

@@pgjudo my suggestion would be to warranty the post. However, if you're a DIY kind of person, ensure there's enough air pressure in the post, then pull it apart to find the offending part causing all the additional stiction. There's a rebuild guide on the fox website. In my case, it was the top bushing which got all scratched up and it had quite a few burs. Luckily the bushing is made of plastic, so I used the stanchion itself to file/cut off all the offending burs. A bodge for sure, but my friend was penniless and we had trouble sourcing the rebuild kit for his post. And it worked. I would still recommend getting the rebuild kit from fox and just swapping the part out if it is due to the bushings, guide pin or gutter seal being damaged and causing the friction. But if it is the air cartridge itself, then I would strongly recommend you warranty that thing instead. Between the parts, specific tools, and expertise required, it's just not worth it to try to do it yourself and risk voiding it when it's covered under warranty.

@pgjudo 3 года назад

@@Snipeonz, thanks, but I’d expect it to just work after paying over $9k for a new bike. Reading the comments, it seems that’s too much to expect from Fox.

@Snipeonz 3 года назад

@@pgjudo Well, I won't blame is specifically on Fox, but more on the fact that with current manufacturing methods, defects are still inevitable. Most of the manufacturing process still requires humans to be present, and as we know, the human component has the highest error rates.

@pgjudo 3 года назад

@@Snipeonz , I can’t argue with that, dude... the biggest shortcoming my killer new bike has is its rider! 🥴👀

@jonnyclaridge5778 3 года назад

Hi Doddy I went for my first ride on my new bike that I built, at the start of the ride my rock shox reverb was working fine but by the end it just wouldn’t work. It was running really slowly and was super stiff. Any ideas what’s wrong with it.

@Claude1100 3 года назад

Hi there my dropper is a bit squigy at the top, compresses 6mm or so any ideas from you guys would be appreciated, thanks

@davehendry2519 3 года назад

Hey Doddy, loving the content. Most of these I have used at one time or another apart from the epoxy one but it makes sense. I am currently trying to rebuild a 1998 Santa Cruz heckler and am looking for some advice on which forks to run. I was running them with an old set of RST delta TL however they have seen their best. I haven't ridden in a while and am gonna try and get back to a bit of XC, free ride, and maybe some enduro. I have a cane creek DB air for the rear but looking for the best 1 1/8 steerer 26" wheel based fork and at least 100mm travel. Thanks mate. #GMBNTech #GMBN

@TPV07 3 года назад

After this video every bike shop gonna have customers coming in with seat post issues saying ‘I tried to service it at home but something went wrong’. Or worse they are gonna take a reverb and a transfer apart ;)

@pgjudo 3 года назад

💯 😆

@mikes4163 3 года назад

#askgmbntech Great video - but how do you get the dropper out of the bike to work on it? Do you have to disconnect the cable at the lever and pull it out with the post? Or is there a cunning plan?