How To Choose The Right Dropper Post For You
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- Äas pĆidĂĄn 5. 05. 2024
- Thanks to Crank Brothers for the products used in this video. All opinions expressed are the presenter's own.
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Dropper posts can make a huge difference to your riding, but there are a few things to take into consideration before buying one. Neil tells you how to make sure you only buy the dropper post that will fit both you and your bike.
Make sure you buy the correct diameter post for your bike
Check whether the post is routed internally or externally
Decide how much drop you want from your post.
An important measurement to take before buying your post is the stack height. That is the measurement from the top of the seat post collar to the saddle rails. Then subtract about 50mm for the dropper post collar and the saddle clamp. This measurement is the maximum length of dropper you can run.
Check the length you can insert the seat post into your frame before it hits an obstruction. For example, a bend in the tube, or the actual rear shock itself.
Ensure the dropper post won't be further out from the frame than the minimum insertion mark.
Do you ride with a dropper post? Let us know in the comments down below đ
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Leave us a comment below! - Sport
Give us a thumbs up like if Neil has helped you understand Stack Height!
Hey I've recently bought a roxshox reverb post and it was the wrong size.. probably should've watched this video first!!
Can you guys recommend a decent brand for a 27.2 dropper post
Thanks ollie
Thank you! đ
Can we just appreciate that I have more travel in my seat post than suspension?
Same haha
You ain't alone manđ
Time for a new bike man
Laughs in 150 mil
@@bikelifemedia2191 I might be đđ
1) check your budget
2) realize I'm broke
3) start over
ic3max x2 that
Right, waiting for that $20 dropper to come out. I feel like they are super overpriced for what they are!
Step three get a job to fuel your addiction
@@crocsonletsgo9665 haha
@@kylesutton5675 erm, passionđ
I'm a newbie to MTB but the very first trail had me wanting one of these!
Yet another high quality and educational GMBN video! Thanks for taking the time to put this together and share with the masses!
Spot on. Knowing the stack height and YOUR own actual saddle height relative to the collar is definitely the most important factors to consider when picking a dropper. Second its soooo important to know how deeply into the frame you can insert the post and then whether or not you can use internal routing to the remote. I used my old seat post slammed all the way in to find out how far I could insert my dropper before hitting an obstruction. Thanks Neil.
Dropping in something other than a a seat tube of appropriate diameter can give you false measure of depth. One of my bikes, Trek Fuel EX has a seat tube curving after around 200 mm, than it has rear shock mount at around 240 mm. The ruler or tape or something thin will go way lower than both inside the frame, to at least 300mm, while actual seat tube won't go below 200mm. It is way better to put the seat tube as low as possible inside the frame, make a mark on seat tube, pull seat tube out and measure length from bottom of tube to that mark;)
minusED Dude so true. 220mm max insertion on my seat tube and thatâs from my current seat post
I got stung, i bought a 150mm post measured and it would fit perfect in my tube, little did i know there was a tiny lip 30mm from the suspension mount that stopped it. Luckily inwas able to machine down the end of the dropper s little do it would fit otherwide i wouldve had a dropper 30mm to high
Really? On my 2017 Trek Fuel EX 29er, the minimum insertion with a seat post is around 255mm, thatâs on a size Large, 19.5â I think. However Iâm not sure whether the cable actuation mechanism below the dropper can go even deeper, only 1 way to find out: but a 200mm dropper.
@@acat6821 thatâs not a good idea!! The reason being is that having your seat post too deep inside the frame can intervene with suspension, especially when bottoming out. It can also put stress on the cable and tear it during a bottom out.
@@goodpools mine is M and 26â, most likely a 29â L has a different geometry. Plus they change it over the years so production year is also important. Anyway, what I was describing mostly is a relatively gentle curve of the rube, where thinner tubes would go deeper than the actual seat tube. The thinner - the lower it will get into the bend giving a false measurement.
Perfect timing for this video since i was wondering exactly what this video explains.
thank you. been waiting for a video like this. really helpful
Keep videos up! They are awesome
There's also a cable-less dropper post. The Magura Vyron. 150mm of drop. It's certainly an alternative if you don't have internal routing available but don't want more cables on your bike.
Okay guys, so.... what if you are trying to "Choose the Right Dropper Post for You" and you _aren't_ already holding it in your hand...?
Watch out for Specialized frames. My Fuse came with a cable operated dropper but I wanted to fit a Rockshox post. The Specialized dropper had a 4mm cable and I ended up drilling out the 4mm hole in the frame to fit the 5mm hydraulic cable, a bit nerve wracking on a brand new frame.
Thanks for the vid đđ»đđ»
Nice! Video helped me like always do. Keep up guys!
The bike looks so nice!
Cant wait to get a dropper post on my new bike. It will make riding sooo much faster in real life and on video.
I love your vids and they always help me become a better rider. (still cant whip though)
Shits tough, best thing I can recomend is good shoes, confidence and a slow, but long jump
Great info. Now need to check budget and availability... :D
So glad that my bike came with one stock ^^
Same here. I always assumed they were rarely retro fitted due to the price.
Me too! 2018 Trance 2 ^.^
I would love to buy my 1st dropper post. I'm 193cm. What is a good entry level with external cable?
Thank you guys. At 38, with your help I realized I know how to peddle, but I didn't knew how to ride a bike. I'm learning ALOT with you guys. I'm pushing my boundaries.
Thank you all very much for all shared experience.
@askgmbn
Nice one bro
This video did help alot.
Awesome video, love the new Nukeproof also! Bike check!!!
We've got a first look at the new Carbon Mega here: gmbn.eu/MegaCarbon
Could you guys make a video on how to shift gears properly?
Hi you are amazing I whatch your videos all the time
Cheers for the support Callum!
didnt quite understand... i got an 2005. stump jumper fsr... it has an interrupted seattube due to the rear shock mount.
how could i know what length i coud use for a dropper post... its an L size frame and my regular seatpost is about 340mm long
tnx in advice !! keep up the good work !
Cant wait to get my dropper post and my short stem.
I'm saving money for a dropper and other upgrades and an action cam. Damn this mountain biking bug is getting expensive
I use a 100mm ks lev Integra. It works great.
I love your accent ROOTING THE CABLE
Be sure to leave up to 50mm of room for that hose/cable housing if it's exiting the seat tube in an angle!
Any suggestions on a quality torque wrench?
I have a medium sized santa cruz chameleon, and I'm deciding on a 150 or 170mm travel. I'm around 5' 9 (175cm) and my ideal saddle hight for peddling is around 225mm (minus the 50mm it's just above the 170mm).
So what size would be best if I want my saddle out of the way for jumps and drops.
When you measure the MAX height to reach pedals you measured down to the clamp but from where exactly? The seat rail or seat top surface?
Its hard to see that on the video.
Awesome, have you guys ever done a 'service your dropper post' video? Just thinking I should probably do something to mine to keep it nice.
Hi predominantlysalad, we actually don't have that video! It may be a bit specific as a lot of posts from different brands are very different and we can't do them all! However, we'll look in to it!
Ahh, I see, thanks!
I need a non stealth on the tube which goes down to the pedal crank and than I can go through my frame.
Perfect timing GMBN im looking to buy one for my hardtail
Good to hear we could help!
i got a specific Y like bike frame where the seat tube is just about 20 cm long before it goes down into the rear shock.... how to know what wht dropper i can fit in there besides the diameter and routing options.... any help !??
Just wondering where you got your shirts made up?
Hello. Could you tell me (if you know) difference between Highline 3 and Highline 7?
I have the same dropper post, and ever since installed my lever has a little bit of back and forwards play in it. And so when pushing it in for the post to say go up, if i take my finger off the lever, the post will still slowly go up, like the lever is stuck pressed in. So i have to then pull the lever back out to stop the post moving. Any tips?
Choosing the drop dropper. First step: Itâs not a Reverb. Well done Youâre 80% there.
I'm using a reverb....but it is oddly reliableđ
@@ghazypangerang6118 that is odd. Very odd. Did you try the up and down?
@@topheavy7616 My Reverb has been working fine for 4 years now without any issues. Well, the only time I had to take it to the shop was last December to replace its seals (because it got stuck in the fully extended position). I don't really know how long Reverbs (and any other droppers) usually last, but for me, 4 years without any issues makes it quite reliable. But I've heard people complained about Reverbs breaking down after a year or two. Therefore I found it strange that mine is still working fine after 4 years (until I had to take it to the shop last December).
hey there, iâm planning to buy a fox transfer. my stack height for my current seatpost is about 185mm so i can have atmost 185-50=135 travel. but following Fox instructions for choosing fox transfer posts, it turns out that a 100mm is best for me. Unfortunately, 100mm travel is not available around our area. So i plan on having a 125mm post. What can you say about it?will this be ok?
I can't find the stock seat post size for my mongoose pro nx 8.3 online or on the post. Which drop post size should I buy?
So, the seat post clamp can be the stock one or a "special" one? Asking for a friend.
Gmbn what is the best dropper seat post?
hello just a quick question, i have a 31.6mm seat post and i have a dropper post from a friend with a 30.9mm size..it would be ok to use or not?thanks
If I have holes for a water bottle cage would a dropper post cable fit in it?
I have a 27.2 post older style frame. I'm having a horrible time finding a post as my seat tube kinda bends.
Another amazing vid, well done!! Quick question....how often should I have to top up the air in my post, I have to do this once a week, does this mean I have a seal issue? Or is this normal? Thanks guys.
T Watson Prob not a good sign... what brand and how old
Trail Work thank you, only a few months old factor fit on a cube Fritz 180. Thanks again, much appreciated.
Once a week sounds a little frequent! It may be time for a quick seal change sometime soon!
Global Mountain Bike Network thank you, could this be a new video idea!!? Thanks again.
Hey Niel, I recently mounted an RFR Pro dropper post on my hartail Cube Reaction hybrid. now I have read that There is a maximum rider weight recommended for this dropper. I am not a light weight rider myself and my own weight is sitting against the max weight of the dropper, which makes it not so pleasant, I am afraid that I can damage the dropper if I ride on it. I was wondering why I don't see this in any of the dropper videos? Is this something I should take seriously or just an indication? I wonder how many people have had any problems with this.
i have on my bike a da~bomb canon~r and i dont have any problems at all!!
If you fit a reverb. Bleed it both ends, not just the remote. It takes forever from the remote only
This is the perfect vid for me Iâm getting a dropper post for Christmas, thank you
Good to hear we've helped Wilf!
Ok my only problem is that Iâm getting a new frame and a new post at the same time so idk what to do
But the frames seat tube is really low
The frame is the hygge carbon hardtail mtb frame
Imma get one for the road bike
Would you recommend taking your bike to a store if your only a beginner and donât know much?
Good vid
Cheers Henry!
Can you convert your bike frame to run internal?
When can we buy the gmbn/animal jersey Martin was wearing in âdown not outâ ?
That's a Martyn only jersey I'm afraid!
I really like the sram eagle group set and I currently ride shimano ten speed. Can I change the driver on my hub to run Eagle? I donât want to change the wheel because I donât want to build another one.
CrazyKidGamer66 yes u ca depending on the hub
Yes, like Oscar O said, see if your wheel maker has a different free hub body available to fit 12 spd.
'Taint a great idea to ride gnarly trails with your seat up high
Trail Work
I see what you did there...
Just started in mtb. Found this out the hard way this weekend. Twasnt goochie
I would have went for 175 fox sure they would send you a free one also. I would pay for maximum droppage then lose 20mm for free
What frame size is that bike ?
Got any tips for quieting internal cable rattle?
You can get small thin spongy tubes to put around your cable from hardware stores. That or cabe ties (no seriously, smallest size cable ties at intervals down the cable, feed it back through without cutting the ties - this way the ends of the ties push against the inside of the frame and work to stabilise the cable.).
Insertion length, fnaar-fnaaar!
Hey if my original seat post measures 30.9 x 200mm, would 200mm be the max depth I have to put in a dropper post, I want a dropper post for the Polygon Trid zz.
If you can get the seatpost all the way down into the frame then yes you've got 200mm length to house a dropper inside the frame.
For the insertion length canât you just measure how long the seat pole is instead
I need to find one for a specialized rock hopper
www.chainreactioncycles.com/brand-x-ascend-dropper-seatpost-125mm-150mm-/rp-prod149024
thank me later!
I just wanted to see Neil's gorgeous bike.
I just got the tranzX ysp19 27.2mm x 400mm external routed dropper with 100mm travel, but I have the issue that the dropper rises very slowly - as in more than 2 seconds. My friend also has the same one, but his dropper rises in less than 1 second. Any suggestions what the problem could be and how to fix it? I already tried with lower clamping force and I can see that the cable activates the mechanism on the dropper just fine, so I'm a little out of ideas...
You probably need to bleed it and add air again
Wouldnt be without mine now and ive only had it 3 months!...
It's a game changer for sure!
thinking of taking mine off, lol
Best bike tech to come out recently... now waiting for the riser stem to be invented
My Specialized FSR Elite 650b (size small) has an issue with the insertion length of the stock command post. This is a great post, but it will not drop into the frame all the way to the collar. This means I have to run it into the travel about 1.5" because I am only 5'2" tall. It makes riding a constant fight with the height. Any ideas on replacements or fixes?
Jeff Hester Internal cable?
Yes
Maybe, but I am not seeing good info on insertion length on Cranks Bros or Thomson.
What about remote placement for a 2x drive train?
We'd suggest keeping it on the left hand as you'll be using your right for shifting more frequently! Try mounting it on top of the bar in reach of your thumb
what would be a good starter budget dropper?
the Giant contact dropper posts or the KS Lev.
We use the Crankbrothers Highlines which are competitively priced with a few other cable actuated posts!
#askgmbn how do you suggest setting up the remote with a 2x or 3x set up?
Probably still on your left hand but mounted for use with your thumb on the topside of the bar, keeping it away from the left hand shifter :)
Helpful video, I was thinking about putting a dropper on a single speed 29r , is it worth it?
Really depends on how often and how aggressive you descend on trails and if you really need to get that saddle out of the way....
It all depends on the kind of trails you ride really! If you feel you need one then go for it! They're a great innovation and you're very unlikely to regret it đ
You should do a dropper post giveaway
Picsalight lol they did with the crankbrothers dropper
Picsalight yeah to me
house giveaway would be cool, too
Who was the first to start: gmbn (the best), gcn (roadies), gtn (multitaskers)
0:39 my cube aim is 31.8mm should I get a dropper post and if so what size
finn pardington 31.6
Iwant the french subtitles pls pls pls
would you fit a seatpost in a hardtrail? If so, How would you fit the cables in, my bike hasn't got an extra hole for the seatpost cables.
You can buy ones with external cable routing.
Thanks, but I don't know whether I could put the cables properly or not, because there's no place to put the zipps into, I don't know if you know what I mean.
robert benassai tou can buy glued stuff jaguar something its little cable supports and you can put the cables in there
thanks mate :)
jagwire cable guide , Just type that on amazon or anywhere you want and you will see what i mean
I just want to ask what brand is that bike and its model
Riz Wan it's a nuke proof mega
Oscar's right! It's a Nukeproof Mega Carbon in the Factory build
Can I fit a 30.9mm dropper on a 31.6mm tube using some spacer?
Lucas Romano if you your still asking watch this czcams.com/video/1q5iXQPKNgI/video.html
Lucas Romano and there is something called a seat post shim
Seatpost diameter 30.9 or 31.6 mega 275 carbon factory?
You literally just have to google it
As a man with stupid long legs how little drop could I go with
just drilled a hole in my seat tube so i can fit a internal cable dropper on my non internal bike
You forgot offset. If your stock seatpost has offset and you need it to get the right saddle position then your dropper will need offset too.
Canyon before now nukeproof?
Ok thx
27.2x350mm can anyone find a good dropper post for me
Can I borrow a few droppers just to make sure my measurements are correct? 31.6 please :-D
Melbourne cup Australia today its a horse race đ
Oh yes, Forgot about that.
it was shit
Are you able to buy a dropper post separately on a bike that doesn't have one and fit it yourself.
Sure! Just check cable compatibility first before you look into which one to get. If you don't have compatibility for internal cable routing, make sure you look at getting a non-stealth post đ
Yes, but if you are asking that then you shouldn't do it yourself.
yes
Thank you
Anyone know of any good 27.2mm dropper posts?
I have the KS eten 100mm dropper on my trek x caliber. Unfortunately, the 100 mm dropper is the most travel available that I know of. I got mine from Jenson USA, I'm sure most big bike shops have them.
yeah I was looking for one for quite a while as well and KS eten(i) 272 seems to be the best available choice.
I hacked the switch for the integrated lever to bodge it in my frame between the bottom bracket and the frame and it's been working great on my cube analog 29". Would love to get more than 100mm drop but it is what it is, running a 27.2mm seatpost just doesn't give you many options.
PNW Components, stuff looks great
Gutted my cube ltd pro has 27.2 post and can't find a decent dropper at reasonable to mid price
My mate says droppers are no good and says uppers are way better and gets you up the hill faster.
Whats an upper???
Drugs dude. It's a drug joke.
Thanks, I'll stick to droppers then, bikes are my drugs :-D
a dropper post and a good strong cup of pre-ride coffee will get ya' there in style ! :-D
#askgmbn how to be more agile on a bike?
Can we won a droper post
I still have to buy a dropper post, but for now i have my seat post set so i touch the ground with my toes: is it ok like that for now? I don't have enough confidence to ride with a higher seat post :-(
stillFLiP thanks a lot: now i will just increase the height every few days until i get to a good overrall height, thanks again for the tip!
Typically if you can touch the ground while sitting on the saddle you will not be able to extend your legs enough for an efficient peddle stroke and proper technique. Dropper posts exist so you can raise the saddle for proper peddling technique, then 'drop' it out of the way to descend down a trail.
If you have a fixed post you have two options: 1. Find a compromise position that lets you peddle decently and descend without too much trouble. 2. Get a quick release seat post clamp and manually raise and lower your saddle, up for climbing, drop it down for descending.
Peace.
GMBN did a video on how to set your seat height correctly. Have a look here, very nicely explained by Neil: czcams.com/video/6ouc9gKki60/video.html
I cant touch the ground even when straddling the top tube. Ive never had a crash that could have been saved by being able to touch the ground while seated. Set your seat height for optimum pedalling position.