Black Friday Sale — Upgrade Your Ride With the Newest Gear
This carousel displays a list of buttons that updates the main product image when a button is clicked
  • Options
  • Detail Images

OneUp ComponentsV2 Dropper Post

$199.00 - $209.00

Item # OUC000X

Select options
  • Cancel
  • Select options
  • Black, 30.9x540mm/210mm Travel ($209.00)
  • Black, 31.6x360mm/120mm Travel ($199.00)
  • Black, 31.6x540mm/210mm Travel ($209.00)
  • Black, 34.9/120mm Travel ($199.00)
  • Black, 34.9/150mm Travel ($199.00)
  • Black, 34.9/180mm Travel ($209.00)
  • Black, 34.9/210mm Travel ($209.00)
  • 100% Guaranteed Returns
  • Free Shipping on orders over $50

Item # OUC000X
Description

Dropper Post V2

When we were a kid, we thought being called "short stack" was an insult to our not-so-lofty stature. It turns out, our heads just weren't in the right game. OneUp Components takes short stack to the max with its Dropper Post - V2, measuring in with the shortest stack height available, and shortest total length of any available dropper currently on the market. Much like the first iteration, the V2 features cable-actuated, infinitely adjustable drop, and a stack height so low that you can easily size up your dropper and enjoy more clearance when its time to buzz the back wheel on steep, aggressive descents.

Not only is it the absolute shortest dropper post on the market, but OneUp offers a unique, travel-adjust shim system with two 10-millimeter shims that enable you to trims down your post to your personalized needs by up to 20-millimeters, so you don't have to size down in dropper length if you're between sizes. This means you can achieve that 140 millimeters of drop with the 150-millimeter option or achieve 160 millimeters of drop with the 180-millimeter option by OneUp, making it a truly personalized dropper, seeing your physiology doesn't usually conform to every number on the market.

For the dropper's operation, the OneUp Dropper Post uses a reliable cable-actuated that doesn't require bleeding to deliver smooth drops and speedy returns — though do note that the lever isn't included. Since the cable clamps at the lever, trimming it down for cable routing is a breeze. And since it's not a hydraulic dropper like some of the competition, it won't slow down or stick in those colder temperatures regularly experienced at higher elevations.

  • OneUp's dropper post keeps things short in stack, long in drop
  • Two 10-millimeter travel adjust dims lets you fine-tune drop
  • Shortest stack height and total length allows you to size up
  • Reliable sealed cartridge internals handle the rigors of the trail
  • Simple, cable-actuated remote doesn't require bleeding
  • OneUp Dropper Lever remote switch is sold separately

Tech Specs
Diameter30.9mm, 31.6mm
Length360mm, 420mm, 480mm, 540mm
Travel120mm, 150mm, 180mm, 210mm
Dropperinfinitely adjustable
Recommended Usecross-country, enduro, trail
Manufacturer Warranty2 years
Weight

Actual Weight

Black, 30.9x540mm/210mm Travel
576g
20.32oz
Black, 31.6x360mm/120mm Travel
451g
15.91oz
Black, 31.6x540mm/210mm Travel
582g
20.53oz
Black, 34.9/120mm Travel
n/a
n/a
Black, 34.9/150mm Travel
n/a
n/a
Black, 34.9/180mm Travel
n/a
n/a
Black, 34.9/210mm Travel
n/a
n/a
Post only, lever not included

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[30.9, 120mm] 435g, [30.9, 150mm] 480g, [30.9, 180mm] 525g, [30.9, 210mm] 570g, [31.6, 120mm] 450g, [31.6, 150mm] 500g, [31.6, 180mm] 545g, [31.6, 210mm] 590g

Actual weights are measured in-house by the Competitive Cyclist team.

Have questions? Chat with a Gearhead

What do you think about this product?

View

>Rating: 4

Good dropper with one minor issue

Familiarity:
I've used it several times

Lighter than comparable droppers. Goes up and down. Solid. No reliability issues so far after a handful of rides. There is one design flaw. The front bolt to adjust the seat cannot be accessed with a multi-tool (I have three different mini ones and noand worked). Not enough clearance to the post. Have to use a traditional L shaped Allen key to reach it. It’s a problem if you’re out on the trail and need to adjust your seat but only brought a multi-tool.

>Rating: 5

210 Dropper

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
210
Height
510` 70"
Weight
138 lbs

I think that this one is the best I've ever used considering I've only used 2 other ones! It's got loads of travel and the insertion dept is nuts. I only measured about a million times to make sure it would fit turns out it fit more than enough! overall a great almost work of art the way the thing is built and easy to set up! one thing I do have to say is that you have to put 300 psi in the post in order for it to go up somewhat faster than how it comes. when you remove the shock pump tons of air does come out but that might just be an id10T error!

>Rating: 3

Works well, but noisy

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
180
Height
5` 11"
Weight
195 lbs

I will start with the statement that for the money this is a great dropper, the short insertion is a definitely a huge benefit, which was the reason I decided to give it a try. I was able to go from 150 to 180, so I really wanted to make it work, but the deal breaker for me was the noise coming from the post. Based on the other reviews, it might be isolated case, but after messing with it for 4+ hours, and ruining few rides for me, I was over it, so I decided to pay a bit extra to the other guys. I did try few tricks few times, in order to solve for it, but not luck: opened and re-greased the post (slick honey grease), carbon paste in the tube, everything torqued to specs, sit clamp/rails lubed and even taped to be sure, cables/ferrules, etc. Seams quiet on the street by the house, but the moment I put pressure on it while pedaling on the trail it will start randomly seeking and clunking. The only thing I didn't do, was disassemble down to the cartridge, which I think is the issue, cause by possible rubbing on the upper tube. The moment I put my old dropper back, the noise was gone. Pros: Short Insertion (bigger drop), low cost, easy self service, cheap replacement parts, 2 year warranty Cons: Not as smooth as higher end brands, feels sticky at times, if you do short drop vs fully down (some slick honey helps, but still not quite there), last inch or so, to fully down required bit extra push at times, actuation requires extra effort (mine was 2.1), noise (could be isolated case), feels somewhat flimsy and doesn't inspire confidence for longevity (could be just me). Kudos to Competitive for working with me! Outstanding service as always!

>Rating: 5

Great for Shorter Riders

Size Bought
30.9
Height
5` 0"
Weight
120 lbs

I got this for my girlfriend's bike, as she is 5ft and needs to be able to get her seat pretty low. She previously has a Specialized Command Post that came stock with the Specialized Stumpjumper FSR she rides. This was a HUGE improvement. The fact that this doesn't have notches, and instead can be set to any height, is super helpful. We shimmed it down to 100mm because she can't reach the pedals if it is set all the way up. Now she has the ability to actually put her dropper all the way up, which was never an option before. It was previously a really annoying game of trying to get it to the right height without going too high, while in the middle of a climb. Had to buy a cheap Giant lever (~$25 at a local shop), since the stock command post had the cable reversed. Tried to install it myself but I'm sad to say I got stuck on the dropper cable having a ton of metal wires in it (aside from the actual cable). Just gave up and had my LBS install it for about $20. Would definitetly purchase again, and may even look to get one for my Bronson if the stock reverb were ever to fail.

>Rating: 1

Gets Stuck

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size
Size Bought
210
Height
6` 0"
Weight
200 lbs

I bought this as part of a custom bike build and it's my first time going with OneUp for a dropper over my usual Fox Transfer. I regret the decision. This dropper gets stuck coming up with about two inches left. I have to hold down the lever and pull up on the saddle to get the rest of the post. up. I ended up buying a OneUp remote as well to see if that takes care of it but it doesn't. I've aired this thing up, added more grease below the collar, etc. After fiddling with it, I find that if I just barely tighten the seat post collar to about 2nm, it works but that's just way too low of a torque. OneUp's instructions say to tighten the collar to manufacturer specs but that would about 3x too tight for this to function. I contacted OneUp and they say to use grip compound in the seat tube to get around this. That just sounds like a hopeful hack to me. I looked around online and found this to be a very common problem, especially if you insert the dropper all the way down to the seat-post collar, which I am. If I can't do that, what's the point of getting such a long dropper with a short insertion length? Hopefully I can return this before it ends up in the trash. Wanted to add that this issue seems to only occur if you have a long enough dropper that you can clamp right below the collar. This is ideal for maximum travel but this post can’t handle that. The only way around it is to remove the white internal shim and sand or file it down to allow enough room for the aluminum housing to squeeze. If I pulled the post up a bit and then clamp it, it works fine but then it’s too high. In my case, I chose to return rather than mod as suggested in Pinkbike forums.

I believe it is likely you did not adjust the length of the cable properly. I have three of these dropper posts on my bikes (V1 & V2 combined) going 4 years and I have never had to service except wipe them down. I have seen the issue you are referring to when my frame grommet was damaged and the cable housing got hung up on the frame and was causing the dropper to think the cable is under tension.

>Rating: 4

Good for taller people

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
180
Height
6` 3"
Weight
190 lbs

I installed a 180 mm on a Trek Full Stache 8 frame size large. The base will not fit all the way in the frame for me, but that is not the post's fault. It does go in far enough for me so that is fine. I pumped up the post to the recommended pressure settings. The only complaint that I have is that you must remove the seat in order to add more air and that is just a pain the butt. Other than that issue, the post works as advertised. I use a PNW Loam Lever and I installed a new Jagwire cable. The action is kind of notchy when activating the lever. Instead of a linear push on the lever, this post has a point in the travel that the resistance is harder that the rest of the travel. Not necessarily a bad thing but it is different from others.

>Rating: 5

Short Term Review

Familiarity:
I've used it once or twice and have initial impressions

The OneUp V2 dropper post is the first dropper that I have used. I install the 180mm dropper a couple of weeks ago along with the OneUp dropper lever and so far so good. The 180mm is a bit excessive. Overall good product.

>Rating:

Does this come with the remote, or is that purchased seperately?

>Rating: 4

Long term review

Familiarity:
I've put it through the wringer

I keep going back and forth on this dropper. I initially left a 5 star review, then had problems with the dropper which made me think more like 2-3 stars. In the end, I think it’s still a nice dropper, and very good for the price. However, there are some caveats. In a nutshell, it needs more maintenance than most other *good* droppers. For example, I used this for less than 5 months before it began to return slowly. I found that the pressure had dropped and I needed to air up. No big deal I guess, but I never had to do this with a Transfer or Bikeyoke. This is also on my XC bike, which I paid to have fitted professionally, and it was hard to get my saddle back in the same position. It worked ok for a few rides, but I noticed even with airing up every couple rides (out of frustration) that it still wouldn’t return quickly. This was resolved by a disassembly of the lowers and a re-grease with some honey slick lube. On the one hand, it’s pretty cool that they tell you exactly how to service this thing, and if you follow the directions, it’s easy and makes this thing work like butter. However, I was surprised at how soon this service was required and for a lot of bike riders who don’t work on their own bikes, this would be a trip to the shop. Pros: Adjustable height Low weight Short insertion depth Mechanical actuator Cons: Needs air relatively often Needs grease relatively often Not good for those who are afraid to tinker

>Rating: 5

Excellent dropper.

Familiarity:
I've put it through the wringer

Among my favorite droppers I've tried. Only complaint is every few months it needs a refresh of grease (included, and not difficult). I purchased because I have long legs and need all the drop I can get. 210mm drop post barely fits and is so nice to have that seat out of the way. Slight amount of play after months of use but nothing worse than other posts. Raising action is fast but not so fast that it acts as a weapon on sensitive bits. It's the only post I'll be using from now on until somebody comes out with something better. I also have a 180mm drop post on my smaller trail bike and it performs just as well. No issues and highly recommend.

>Rating: 1

Trash

Familiarity:
I've put it through the wringer

Pretty much garbage. Spend the extra cash and get something better. You'll waste more time greasing and adding air to just end up buying a new one anyway.

You add a lot of air to a closed cartridge dropper? Weird.

Hey Dave, it’s not weird. You can add air to this dropper.

>Rating: 1

Garbage

I get an ibis ripley ls from competitive cyclist, it’s a great bike, but the one up dropper and lever not good at all. It’s get stuck, work only some times. I received an email from competitive asking me how is my ibis and assigning a person for help and answer any questions I have. So I told about the one up dropper, he says we can help to replace it but when I request the replacement he said they can’t, he said I have to deal with the manufacture. I try to fix the problem putting more air pressure and make sure don’t over tight the clamp and put grease on but any thing works. So I decides to throw it away and buy a better brand, and loose my money. So OneUp dropper is garbage and competitive cyclist not a good costumer service.

>Rating: 5

Great dropper post at a great price!

Familiarity:
I've used it several times

I was lucky enough to pick this dropper post up during the black Friday sales so I got a ridiculously low price. That being said I would still buy it at the full price. It has more features than most any dropper post out there and it works great. OneUp really has their act together when it comes to filling in the small areas that other companies seem to leave out! They are very innovated to say the least...

>Rating: 5

Great Dropper for a Great Price!

Familiarity:
I've used it several times

My Pivot Switchblade came with a 125mm Fox Transfer. I was pleased with it, but when I started looking to get a dropper that offered longer travel and comparing prices I had to consider the OneUp. I read several reviews and then a buddy picked up the OneUp. He kept saying it was great, but I kept saying how could it be? It's half the price, (Damn Near). Anyway I finally got one, and was thinking I have nothing to lose, Competitive treats me great, if I have a problem they'll stand behind me. Well I now have a few dozen rides on the OneUp and it works just it did on day one. Smooth operation, equal to my Fox Transfer, only difference is 55mm more travel. NOTE: This model requires a cable / lever and hardware. This was the longest dropper I could fit in my 2018 Switchblade and keep my saddle height correct. 30" mid saddle to center crank shaft.

>Rating: 5

Great piece of equipment

Familiarity:
I've used it several times

Love the shims and the new 2.1 actuator is very easy to engage. Paired with the PNW Loam Lever, I am in dropper heaven. Being 6'2", I am running 180mm travel (shimmed to 160mm with the roller pins) and am about 1" from full insertion (lol). The post has a little side to side play, but every dropper has some eventually (the guides that stop a dropper post and keep it from rotating wear overtime, completely normal) The post is fast to rise and easy to drop with my body weight.

>Rating: 3

Great post with one big flaw

Familiarity:
I returned this product before using it

Everything about it is great, but the actuation is too hard. Right out of the box, pressing the actuator on the bottom of the post proved too hard. It requires too much force. Even the buttery smooth actuator on my Reverb (B1) got tiring on long rides - this one requires twice the amount of force. The amount required to actuate this post even with a LA Wolftooth is too much - every single time. It is possible I got a defective post, but I ordered two in differences sizes and right out of the box both functioned the same. If you have super strong thumbs, this may not be an issue for you. I'm going to stick with the Reverb - no other post matches its smoothness. All cable actuated posts have friction, this one just too much of it.

Bought one for my wife and she has no problem using it.

I do agree that the actuation on this post isn't as good as the best posts out there. For the money and amazingly low insertion depths this post is a winner. I have had 2 of these post in 2019 and hopefully this will eventually be something that OneUp fixes.

>Rating: 5

Best Dropper for the Money

Familiarity:
I've used it once or twice and have initial impressions

Bought this to replace an E13 dropper on my YT Jeffsy. Had some issues with the E13 that a rebuild didn’t fix, so sent that out for warranty and replaced with OneUp. The ability to fit a 180mm dropper in a medium frame, with a 30” inseam is incredible. I didn’t even have to shim the travel down. This replaced a 150mm dropper, so now I have even more clearance with the dropper down. Installation was simple. This 31.6 post does come with the 2.1 actuator, so it is actuated by the cable pull and not the housing like the old version. Works well with my E13 remote. Post worked perfectly out of the box even with only 200psi in the air chamber, I inflated to 275 since the spec is 250-300. Operation is smooth and precise, no play at all. We’ll see how it lasts but seeing as this is the second generation of a post that was already well reviewed since it came out, I don’t think I’ll have any issues with it.

>Rating: 5

FINALLY!

Familiarity:
I've used it once or twice and have initial impressions

If you're a short dude like me (5'7) you know how hard it is to find a dropper that will fit a FS MTB, especially Emtb's. The frames on my bikes can only accept 200mm of seat post before they hit a bend in the frame. If you want to be able to drop your seat almost down to the frame, yet have the enough rise to get into the proper ride height, this is the post you need. Most other posts that I have tried have 220mm+ housings, even on only 100mm rise. I now have 120mm of extension, and can still drop almost all the way down to the collar. It was a gamble however, OneUp doesn't give you "full insertion" specs so I took a chance on return costs to get this DP. I have the 31.6 x 120mm, distance below collar to bottom of actuator is 210mm, the actuator is only 10mm. The housing itself is 200mm. It is a little tricky to install, you have to keep constant tension of your cable or else the cable will slip out of the pocket in the actuator. There is an o-ring retention but it isn't adequate to keep the cable in the actuator pocket. It also came with what looks like needle bearings, have no idea what these are for, no instructions in box, and post came in compressed. Just thrilled to find a DP that fits my shortness. Two year warranty is great as well. The action is smooth and snappy.

The bearings allow you to adjust your drop up 20mm.

Those little brass pieces are shims to reduce the travel. OneUp has a video with install instructions.

LOL - I guess 'short' is relative! Try 5'2" or shorter (like many many Ladies out there). That is indeed where OneUp shines - it gives you the ability to add 20mm more drop with its shorter insertion depth. That is 20% more drop for the truly vertically challenged crowd who are normally limited to a 100mm dropper. Paired with a light action Wolftooth Lever and this Post works sublime.

>Rating:

Do these have the 2.0 or 2.1 actuators? OneUp has indicated all droppers are being changed to the 2.1 moving forward, but what to clarify which actuator yours have. Thanks!

>Rating: 5

180mm of drop on a small frame!?

Familiarity:
I've used it several times

Installed the 180 dropper on my size SMALL Juliana Maverick (for the dudes out there, that's a 2019 Santa Cruz Hightower) complete with extra low standover AND a split-seat-tube-style frame. I am beyond impressed. I dare say this is LIFE CHANGING. ALMOST as life changing as installing my first dropper post ever. I am prone to breaking out into a Super-Nerdy Happy Dance(!) just thinking about the awesomeness of this dropper (AND the fact that I no longer need a quick release seat tube collar in combination with my dropper because I finally have enough drop in my dropper that I don't have to adjust my seatpost mid-ride! And let's NOT discuss how embarrassing that was....for the last 5 years... /frowny face). Install was easy. And if you think you've hit a snag after attaching the cable to the lever, you probably just need more air in the dropper. I paired mine with a Wolf Tooth "Light Action ReMote" for SRAM matchmaker. You will also need to purchase cable and housing separately.