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OneUp ComponentsV2 Dropper Post

$199.50 - $215.00

Item # OUC000X

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  • Black, 30.9x540mm/210mm Travel ($215.00)
  • Black, 31.6x480mm/180mm Travel ($215.00)
  • Black, 31.6x540mm/210mm Travel ($215.00)
  • Black, 34.9/120mm Travel ($199.50)
  • Black, 34.9/150mm Travel ($199.50)
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Item # OUC000X
Description

Why We Like The 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.

  • 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
Materialaluminum alloy
Diameter30.9mm, 31.6mm
Length360mm, 420mm, 480mm, 540mm
Offsetzero
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, 31.6x480mm/180mm Travel
541g
19.08oz
Black, 31.6x540mm/210mm Travel
582g
20.53oz
Black, 34.9/120mm Travel
511g
18.03oz
Black, 34.9/150mm Travel
n/a
n/a
weighed w/o shims

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[30.9, 120mm] 15.3oz (435g), [30.9, 150mm] 16.9oz (480g), [30.9, 180mm] 1lb 2.5oz (525g), [30.9, 210mm] 1lb 4.1oz (570g), [31.6, 120mm] 15.9oz (450g), [31.6, 150mm] 1lb 1.6oz (500g), [31.6, 180mm] 1lb 1.2oz (545g), [31.6, 210mm] 1lb 4.8oz
435g), [30.9, 150mm] 16.9oz (480g), [30.9, 180mm] 1lb 2.5oz (525g), [30.9, 210mm] 1lb 4.1oz (570g), [31.6, 120mm] 15.9oz (450g), [31.6, 150mm] 1lb 1.6oz (500g), [31.6, 180mm] 1lb 1.2oz (545g), [31.6, 210mm] 1lb 4.8oz (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?

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>Rating: 3

Great until it failed in < a year!

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
onetwenty
Height
6` 0"
Weight
210 lbs

The good: I really love this post, the style and build quality are excellent. For 11 months it worked flawlessly...sturdy, smooth actuation, reliable drop/return! The bad: On my last ride it just started dropping as soon as any weight was applied. Performed recommended maintenance and pressurized, but the post still drops as soon as any weight is applied. Appears to be an issue with the [unserviceable] sealed cartridge, possibly the brake mechanism because the post will also drop when the it's unpressurized, and the brake should prevent that behavior. *** I've just started the warranty process so I am not sure how the problem will be addressed. Assuming I get a replacement cartridge I'd be happy to keep the post in action...it rocked before this hiccup!

Any updates on yours? Mine just did the same thing and I've reached out to CC but was curious how yours was handled?

>Rating:

Does this come with a cable?

>Rating: 5

Maximum drop

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
180
Height
5` 7"
Weight
150 lbs

Happy I ordered this to replace my 125 dropper with a 180. I’m only 5’ 7 but made sure prior to ordering this would fit my bike & I honestly couldn’t have a better fit for my set up. Worth the $

Happy
>Rating: 5

Maximum drop

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
180
Height
5` 7"
Weight
150 lbs

Happy I ordered this to replace my 125 dropper with a 180. I’m only 5’7 but made sure prior to ordering this would fit my bike and I honestly couldn’t have a better fit for my set up.

Happy
>Rating: 5

Maximum drop

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
180
Height
5` 7"
Weight
150 lbs

Happy I ordered this to replace my 125 dropper with a 180. I’m only 5’7 but made sure prior to ordering this would fit my bike and I honestly couldn’t have a better fit for my set up.

Happy
>Rating: 2

4 months old and already dead

Familiarity:
I've used it several times

I am by no means hard on my equipment. I’ve had a KS lev integra for 2 years without issues, a reverb for a year without issues, and a bike yoke revive for 2 years without issues. None of those I ever cleaned, wiped off, or did any sort of maintenance on them. When I got my new bike I wanted the biggest dropper I could fit which was the 180mm Oneup v2. I was also happy I’d be saving a few bucks as well. I heard they were prone to getting dirt inside the seal so I made sure to wipe off my stanchion before and after every ride to try and avoid that. However, barely 4 months (135 miles!) into owning it, dirt has made its way into the seal leaving a deep gouge in the stanchion. I don’t ride in the mud or any crazy conditions, my trails are all hard pack, and my bike is always stored inside. The fact that this happened is kind of ridiculous given my experiences with past droppers. Now, I’m trying to deal with the warranty process, which doesn’t make sense to me. I should be able to contact the company directly for warranty work, why should I contact backcountry (where it was purchased) when they don’t know your warranty guidelines? Save yourself the headache, spend a little more and get a reliable dropper.

I'm having the exact same issue. Less than 100 miles on it and it just goes down when i sit on it and comes back up when i stand. Bike shop tried everything said it's busted internally. The warranty process sucks, I built a whole bike and I can't remember where I bought the dropper from.

>Rating: 5

So far so good

Familiarity:
I've used it several times

Pretty easy to install with internal routing. Only had a few rides with it so far but over all no issues at all. Very responsive when I recall it with good pressure. Fluid movement on the way down. No jerking or movement. Love it.

>Rating: 5

Installation a snap, super solid feel

Familiarity:
I've used it several times
Fit:
True to size

This product is really well designed. I had a KS Lev dropper and that was a pain in the a$$ to connect the cable to the dropper post. Makes so much more sense to have the wire end of the cable clamp at the lever. The post feels solid on the bike. The seat doesn't wobble at all in any position of the post. Comes right back up when I want it. No more pinching the seat between my thighs and "helping the post up". I did order the wrong lever. I have a front chain ring so a paddle shifter does not work. Fortunately I had another lever that worked fine. I got the 180mm travel, which seems fine. I don't think I'd want/need more but there is that option to have more travel if you want it.

>Rating: 4

OK to Excellent, depending on the user.

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
150
Height
5` 11"
Weight
155 lbs

I've used several of these now, on various bikes. The packaging is great: nobody else comes close to the same travel for a given insertion or clamp-to-saddle rail distance. It's also pretty light, and fairly affordable. Installation is very easy. Travel-adjust is easy and can be done on-bike. The saddle clamp isn't the easiest to use, but the dropped design of the clamp is part of the key to the great drop numbers, so I find that easily forgivable. The post also has a little more fore/aft play than some others, again due to the closely-spaced bushings which give it that short insertion depth. For most people, this is a nearly-perfect post at a great bike. However, the 30.9 posts can bind when hilted, which is a major disappointment. Details on that below. One other fairly minor issue: it seems to be more sensitive to being clean and lubed than most posts. I have to clean and re-lube about twice as often as a post with top-notch seals and bushings, such as a Transfer. Fortunately, this is a very easy job that doesn't take any special tools. I do find that ONLY Slickoleum/Slick Honey/SRAM Butter (they are all the same stuff) works well. Regular general-purpose greases do not keep it from sticking. Details on that 30.9mm binding issue: depending on the frame, the 30.9 posts might bind when fully hilted when you torque the seatpost clamp. I don't think the applies to the larger-diameter posts, but I haven't tested enough to be sure. It absolutely happens on all the 30.9 posts that I've had in my hands. Sometimes I can find a happy medium where there's enough torque to hold the post, but not enough to bind. With other frame/clamp combinations, it will bind unless moved up high enough to put the upper bushing above the clamp area (about 15-20mm). This is possible with the included shims (unless you're already shimming it just to fit your frame), but either way it's a real bummer on a post that's essentially designed to be hilted. So, if you run a 31.6 or 34.9 post, don't mind lubing a little more frequently, and are looking for max travel for a given saddle height/frame combo... this is your dream post. If you run a 30.9 and want it hilted, probably look elsewhere (like a Bike Yoke or 2021+ Transfer). For everyone else, it's a solid choice, especially if weight and cost are concerns. FYI, other posts I've used a lot are the Command Post IRCC, Transfer, Koryak, Fall Line R, Tellis, and Reverb. Somehow I've never owned a KS...

>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

Totally agree.

>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

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.

a little cleaning and lube go a long way on this dropper. Other droppers require you to bleed the lines and or just dont work as snappy. I initially had the same issue you are describing, but my local shop set me straight. Buy a good bike cleaner and clean it then apply some slick honey or similar lubricant and cycle it through the travel a few times. Make sure your pressure is at 250 - 300 PSI and you should be set!