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  • OneUp Components Dropper Post
  • OneUp Components Dropper Post Detail
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OneUp ComponentsDropper Post
Sale 30% Off$140.05 $199.00

Item # OUC000Q

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  • Black, 31.6x450mm/170mm ($140.05)
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Item # OUC000Q

Get the most from every drop.

OneUp Components realizes that it's difficult to get the most drop from a traditional dropper post, due to wasted space inherent to popular droppers on the market, as well as things like interrupted seat tubes found on many frame designs. That's why OneUp Components created their Dropper Post to offer the absolute shortest stack height of any dropper on the market, period. OneUp's shorter dropper allows you to size up to their 150-millimeter option if you're currently using a 125-millimeter dropper or a lengthy 170-millimeter option if you're currently running a 150-millimeter dropper on your bike. This way, you can get in a lower, more aggressive position while descending without any undropped post sticking above your seat tube, preventing you from going lower off the rear end of your bike.

Not only is it the absolute shortest dropper post on the market, but OneUp offers a unique, travel-adjust shim that's 50 millimeters in length and trims down to your personalized needs, so you don't have to size down in dropper length if you're between sizes. This means you can achieve that 143.5 millimeters of drop with the 150-millimeter option or achieve 158 millimeters of drop with the 170-millimeter option by OneUp, making it a truly personalized dropper, seeing your physiology doesn't usually conform to rounded numbers.

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.

  • Shortest dropper on the market maximizes each drop length
  • Travel-adjustable shim lowers dropper's travel up to 50mm
  • Shim is trimmable for customizing the dropper's travel
  • Simple, cable-actuated remote doesn't require bleeding
  • OneUp Dropper Lever remote switch is sold separately
Tech SpecsWeight
Tech Specs
30.9mm, 31.6mm
[150mm travel] 410mm, [170mm travel] 450mm
150 mm, 170 mm
yes, infinitely adjustable
Recommended Use
enduro, trail
Manufacturer Warranty
2 years

Actual Weight

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

Have questions? Chat with a Gearhead



Black, 31.6x450mm/170mm
post only

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[30.9mm, 150mm travel] 509g, [30.9mm, 170mm travel] 545g, [31.6mm, 150mm travel] 530g, [31.6mm, 170mm travel] 565g, [housing and cable] 53g

Reviews & Community


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Awesome. Work less ride more

  • Familiarity: I've put it through the wringer

Bought this dropper in 170mm for my Chameleon. I have long legs so the 170mm is perfect. Love it.

What a joke

    Worked fine for a short period then multiple issues. Won’t return all the way up. Tons of stiction. Have done all the recommended fixes and it helps for a couples cycles of going up and down then same issue. Also have to have my seat collar way under manufactured recommend spec to make it kinda work. After contacting one up they are offer a bushing that is a “couple weeks out”. Thanks, I didn’t what to actually ride me bike for the next couple weeks or anything.

    What I really loved was the email today from One up how the v2 dropper is shipping and literally states in the email how it is better than the v1 post. I’m glad you guys concerned about gaining new customers with this awesome new post and telling the old paying customers pretty much to get lost for a “couple weeks” for a maybe fix. Go buy a bike yoke dropper and wolftooth lever, you get what you pay for. Unfortunately I guess I payed for a $200 paper weight.

    What PSI do you have set? I believe you need over 200PSI for normal operation. This dropper post uses an air cartridge instead of hydraulic.

    Testing this out

    • Familiarity: I've used it several times

    First dropper so I'm testing the waters...seems pretty cool.

    Solid offering from OneUp

    • Familiarity: I've used it several times

    This dropper has been great so far. It has a really smooth action, 170mm of drop, been reliable so far and I love the audible clunk when returning to its extended position.

    outstanding dropper post

    • Familiarity: I've put it through the wringer

    No issues whatsoever. Have a shock pump ready though because it doesnt come with much pressure, but that's standard with all droppers


    • Familiarity: I've put it through the wringer

    What? is that the sound of a cash register signifying money or the clean, crisp, fast actuation of the OneUp dropper? Why not both?

    That's right, this post is straight money. In fact, if you put water on top of it, and raise it, the action is fast enough that the water will spray all over the place in such a way that an unwise person might assume it is "makin' it rain".

    I paired this with the Wolftooth dropper remote as a replacement for a RaceFace Turbine dropper (see my review on that post as well) which left me wanting for much more due to its slow speed, mushy feeling, and rotational play. Needless to say, the OneUp was exactly what I was looking for. OneUp hit another home-run as they always do. Installation was a breeze and the fit and finish is pristine.

    Love this thing

    • Familiarity: I've put it through the wringer

    Tried quite a few different dropper posts and this is by far my favorite in the price category. Pair it with a wolftooth lever and you've got yourself a system that works as it should and that won't let you down.

    Worked Fine So Far

    • Familiarity: I've put it through the wringer

    Only complaint is that it sometimes sticks on the first time using it, but I had the same issue with the KS Lev droppers. Not sure if that's because of the way I built it (maybe the cable is too tight?) though, so I won't immediately fault the dropper. It works and it's half the cost of other droppers on the market, so I don't think that one minor issue is worth 2x the price to get a Fox. I wouldn't get the OneUp lever though, ours broke first crash. It's light and cheap, but not strong.

    Close but no cigar

    • Familiarity: I've used it several times

    I had high hopes when I saw this dropper come out. Perhaps my issues are related to the 170 model and the bushing overlap needed for a dropper this length.

    Overall, I love OneUp components. I have their steer tube EDC, bash guard, etc. and they've all been great. I even like the carbon dropper trigger that get mixed reviews. The craftsmanship is great on this dropper and I hate writing this review, but I did have to return it. I didn't take a chance and get a replacement so perhaps I had a dud.

    First, the stiction was terrible. This is by far my biggest complaint. Right from the start, I noticed the seat post portion is much smaller in diameter than the other droppers I've used. Perhaps this is the cause of the binding. However, getting the initial travel to start always involved some sort of wiggle dance or bum up/down on the seat and then you could feel the stiction all the way down. Then on the return, it would never top out. It required 2 or 3 stabs at the trigger to get full return length.

    The other issue I encountered was the seat post continually slipping down the seat tube until I torqued it to at least 5.8 Nm. On a carbon frame, that's getting right up against the torque limit. This might be due to the very smooth finish of the outer shaft. All other droppers I've used have had a textured finish. However, that's just my speculation due to my experience and observation.

    If I didn't read other similar reviews, I would have written it off as a one off. However, I've read where others have experienced the exact same issues, so I decided not to try a warranty replacement.

    Ultimately, I returned this dropper and replaced it with a Fox Transfer. So far the Transfer is the bar for me. Silky smooth and reliable operation. The only small downside to the Transfer is the return speed, which isn't as fast as others, but certainly not a dealbreaker unless you require supersonic returns.

    As always, the Gearheads at CC are amazing. In this case, it was Matt Conn, who knows his stuff and never dropped the ball once when I decided this wasn't the dropper for me. So kudos again to CC.

    I believe your issue was caused by too little air pressure in cartridge. This dropper has a Schrader valve on top to add pressure. Also just add a little carbon paste so you dont have to over tighten seat collar.

    Goes Up and Down without being a Downer

    • Familiarity: I've put it through the wringer

    I installed this dropper on a 2019 Santa Cruz Bronson because I wanted to have a longer travel dropper post. I was able to run the 170mm OneUp in place of the 150mm Reverb that ships stock with the bike. Having the extra drop allows me to get the saddle super low and out of the way on steep descents. The dropper is well made and hasn't given me any problems after several months of use. If you're looking for a reliable dropper post I recommend you take a look at this one.

    Unanswered Question

    Their website claims no temperature sensitivity, how well do they function below freezing though, for use on a fatbike in the winter?

    Solid - Super Solid

    • Familiarity: I've put it through the wringer

    Honestly it's a little scary going with one of the cheaper versions of anything. In this case, you could spend literally more than double on a dropper post, or you could settle for a 200 dollar "budget" option. I did that, and so far am really glad I did. Action is smooth and consistent, no play at all and the dropper is obviously of a high quality.

    This company has it figured out

    • Familiarity: I've put it through the wringer

    What more can I say? Price is super competitive. The dropper works so smoothly, and after 3 months it's been 100% reliable with no lateral play. I was able to upgrade from my fox transfer 150mm post on my SB6, which got my seat down 2 more cm on the drops. This was a very noticeable difference for me. I paired it with a wolftooth remote - match made in heaven. Nice job one-up!

    OneUp Components Dropper Post

    • Familiarity: I've used it several times

    love this dropper. works well and easy to install. It was a little sticky at first and would not return to its full height, but after I put a little slick honey on it it now works great.


    • Familiarity: I've put it through the wringer

    Super great for fine-tuning easy to use. Installation is simple and the thing is pretty durable. Fun for experimenting.

    Great post, shims not included

    • Familiarity: I've used it several times

    As the description mentions, this post stands out with its infinite adjustment. The shims that allow for the adjustment are sold separately. Snag them with item number OUC000V