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OneUp V2 Dropper Post with OneUp Dropper Post Remote V2 review

OneUp, based out of Squamish in British Colombia, Canada, was founded by three former Race Face engineers committed to making products they wanted on their bikes at affordable prices.

Although OneUp was made famous by its innovate EDC steerer tube mounted tool, the company’s gone on to make even more products including chainrings, pedals, handlebars and large cassette sprockets before both Shimano and SRAM launched cassettes with super-wide ranges.

OneUp’s latest dropper post is as innovative as the EDC tool thanks to the vast range of available diameters, travel options and low stack heights all sold for a rather bargainous price.

OneUp V2 Dropper Post details and specifications

Offered in four drops, from 120mm up to 210mm, and in three different seat tube sizes (30.9mm, 31.6mm and 34.9mm), it’s one of the most versatile posts on the market at the moment.

Not only can the designated travel be reduced by 10 or 20mm using shims, OneUp has also gone to town trying to make its overall height and stack height as short as possible.

This, it claims should help you get your saddle as low as possible, while still being able to raise to the same height as a shorter travel, longer post.

Alex Evans

The seat clamp has a two-bolt design that uses 5mm Allen heads.

However, the post’s party piece has to be its height. The 210mm drop post has a maximum measured insertion depth of 311mm, including post actuator and cable ferrule.

The 210mm travel version’s minimum possible length to the centre of the seat rails at full height, including cable ferrule, is 554mm – slightly longer than OneUp’s claim of 540mm. RockShox’ Reverb B1 Stealth 150mm travel post measured 520mm for comparison.

The OneUp’s length from the collar to the centre of the seat rail with the post compressed is 35mm and the Reverb’s is 60mm, based on 150mm travel.

While minimum insertion depths will be important for people with long legs, maximum frame insertion depths and overall length will be the figure worth the most attention for people with shorter legs looking to size up in post travel.

Be warned, though, that kinks in the seat tube or pivots that intersect the tube can greatly affect the maximum insertion depth of a post.

OneUp Dropper Post Lever V2 compatibility

Alex Evans

The post is cable actuated with the cable clamped at the lever end. The OneUp V2 Dropper Post has sealed cartridge internals to help increase service intervals and reliability, and the cartridge is user-replaceable and costs £49.50 / $60. The cartridge can be serviced at home as well.

OneUp’s own Dropper Post Lever V2 is compatible with SRAM’s Matchmaker X system, Shimano’s I-spec-EV and II systems and can also be supplied with a 22.2mm bar clamp. The remote costs £42 / $49.

However, the post is compatible with any cable-clamping remote available from a host of brands and if you already own a cable-actuated post with a remote, it’s highly likely the V2 Dropper Post will work with it.

OneUp V2 Dropper Post performance

From the get-go, the V2 Dropper Post has proven to be reliable and have an exceptionally smooth and consistent return speed.

It was easy to set up and fit to the bike, and because the cable is clamped at the lever end, cable length adjustment doesn’t have to be as precise as systems where the cable is clamped at the post end.

Also, the lever and post didn’t appear to be overly sensitive to cable tension, and worked well before any tuning, but finding a sweet-spot certainly helped with performance and reduced lever free-play before the post was activated.

I was particularly impressed with the post’s smooth action. Considering I had a 30.9mm diameter post with a 210mm drop – the thinnest diameter post and the longest travel option – it has remained reliable and flex-free. There’s no more fore/aft play than other droppers on the market, even after three months of total abuse.

Alex Evans

There is a small amount of head twist but this doesn’t interfere with the post’s operation and can’t be felt when you’re riding. It’s only noticeable if you twist the head on purpose when the post isn’t loaded with weight and is commonly seen across pretty much all other droppers on the market.

The post reliably extended and compressed time and time again with a push of the remote, but after several months there was a sticky section of travel as the very end of the post’s shaft travelled past the seat clamp.

I initially thought it needed a service — there are full instructions and step-by-step guides on OneUp’s site — but the air spring actually needed returning to the correct pressure.

After re-inflating the spring, which took all-of five minutes and only required the saddle to be removed, the post returned to its normal, faultless operation.

The lever feels good and, despite me not fitting it with a SRAM Matchmaker, it was easy to get in the right place with the supplied clamp. A Matchmaker clamp is available, though.

The only criticism I could draw is that the remote doesn’t feel as weighty as RockShox’ Reverb 1x. However, it hasn’t broken during the testing period and has survived plenty of muddy days without feeling notchy or stiff to operate.

Alex Evans

The best thing about this post is how short it is. On my Orange long-term test bike I’ve gone from using a Reverb B1 150mm travel dropper (max insertion depth 310mm / min possible total length including post body and hose fittings at full height 520mm) to a 210mm travel OneUp.

The OneUp’s total length is 554mm, an increase of 34mm in length for a travel increase of 60mm. Increasing dropper travel by 60mm is a big deal.

It allowed me to get the post further down on the descents while maintaining the same height with it extended. I was initially scared to jump 60mm in travel, and even persuaded OneUp to send me a shorter travel 170mm post in case the 210mm was too much, but it turns out I needn’t have worried and feel like I should have done this upgrade ages ago!

It’s so good having a post that can go to full height but also drop as low as it’ll go. The change is so drastic that when I ride bikes with shorter travel posts, even when they’re compressed, they feel like they’re kicking me in the backside.

To top it off, the OneUp V2 Dropper Post is relatively inexpensive, costing £221 all in. A Brand X 170mm dropper retails for £169.99 but the OneUp feels like it represents better performance for the cost.

OneUp V2 Dropper Post bottom line

Not only has the OneUp V2 Dropper Post let me extend travel by 60mm from a 150mm Reverb, it has proven to be exceptionally reliable, easy to install and has a silky-smooth operation.

The post on its own is truly worthy of its five-star rating. However, the lightweight remote didn’t feel as solid as RockShox’ Reverb 1x lever, but it didn’t break or its performance reduce during the testing period, I just expected it to feel more robust for £42.

A substantial increase in post travel isn’t quite as revolutionary as the introduction of droppers in the first place, but it’s not quite far off, and I would recommend seriously investigating an upgrade to a OneUp V2 Dropper Post and Dropper Post Remote V2.


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Spend less, drop more! The OneUp Components Dropper Post V2 is available in 120mm, 150mm, 180mm and 210mm lengths and all posts now come with the V2.1 installed so there will be no issues running it on latest generation Santa Cruz frames with the low shock style.

The OneUp Components V2 Dropper has increased in durability and decreased in overall length and stack height. It's (once again) the shortest, dropper post available but now offers the lowest stack height as well. This means you should be able fit a longer travel OneUp Components V2 dropper into your bike, then you can with any other brand. For example, if you've only been able to run a 125mm dropper previously, there's a good chance you will be able to squeeze a 150mm in there now. After all more drop equals more fun! The durability has been improved with the implementation of a new upper DU bushing in the upper collar and increased bushing overlap.

Want to customise how much drop it's got? The OneUp Dropper can do that too. You can reduce the posts travel by up 10 or 20mm on the bike, without any specialty tools or even having to remove the saddle.

Who's this item for: Riders who are after the maximum amount of drop from the shortest possible insertion depth. These are ideal for bikes with kinks in the seat tube, water bottle mounts or suspension bolts interrupting the seat tube.

Actuation style: The post is actuated by a standard shift cable. The cable barrel is situated at the dropper post end while the cable end is clamped at the lever end. All posts have the V2.1 Actuator installed.

Spring style: Hydraulic. The V2 cartridges are user replaceable.

Infinite or finite adjustments: Infinite amount of adjustment. You can stop the dropper post bus wherever you'd like to!

Internal or externally routed: The V2 dropper post is only available as internally routed.

Lever included: Nope. The post does not include a lever or a cable kit. There are so many great lever/remote options out there these days you might as well get one you like.

Includes cable / housing / battery: No, the V2 post does not include a lever, cable or housing.

Saddle clamp style: The saddle clamp with accommodate your standard round metal saddle rails.

Weight: These weight are for the post only and do not include the lever, cable, or housing.

  • 30.9 x 120mm = 435-grams
  • 30.9 x 150mm = 480-grams
  • 30.9 x 180mm = 525-grams
  • 30.9 x 210mm = 570-grams
  • 31.6 x 120mm = 450-grams
  • 31.6 x 150mm = 500-grams
  • 31.6 x 180mm = 545-grams
  • 31.6 x 210mm = 590-grams

Stand out features: The shortest stack height and overall length of any dropper. These are easy to service at home without the need for special tooling. 210mm of drop! You can fine tune the drop by 10-20mm to get your perfect ride height.

What's in the box:

  • 1 x OneUp Components Dropper Post V2 (with V2.1 Actuator installed)
  • 2 x Sets of 10mm shims (to fine tune the drop amount)

Pros: Huge amount of drop available at a hyper short overall length. Compatible with lots dropper remotes and levers. Lighter than the V1. Durability has been improved.

Cons: Doesn't include a lever or cable kit.

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Measure your max stack height on you bike, then pick out the right V2 for you. Each post is adjustable via spacers in 10-millimeter increments (20 max).

With an inseam as long as a yardstick, I went with the full 210 millimeters of drop for the test period, and even swapping from a 200-millimeter post, the difference is noticeable—in a good way. What is also noticeable, in a not-as-good-way, is bushing binding caused by such a long post on such a skinny tube. The test post was 30.9 millimeters, which likely exacerbated the problem, but didn’t create it. Sliding forward on the seat keeps binding to a minimum, but there have been a few times where I couldn’t get the post down in time for an unanticipated descent. 

Most of the time, however, the V2 drops through its 210 millimeters with smooth efficiency. There isn’t much feedback or pressure to overcome, so as long as nothing binds, the post will get out of the way right quick. Keeping the upper dust seal lubed is also important for quick dropping, which brings me to the next topic.

Weather. Mud (in addition to tall, heavy riders on tiny seat post diameters) is a dropper’s worst enemy. But the V2 dropper uses a cartridge design, so the pressurized bits of the post that do the pushing have a very, very low likelihood of becoming contaminated through wet rides. The cartridge is nestled inside and oriented so water will drain, not sit, on the main seal. This ensures things stay fresh, even if the rest of the post gets contaminated over a wet winter. If it does ever go out, a new cartridge is only $60. You can also get all the replacement small parts on OneUp’s website, so when it comes time for a complete refresh, things should be relatively painless.


Silky smooth remote is sold separately

One Up Dropper Post V2 has upped the ante and added two extra lengths (180 and 210mm) to the range and some tweaks to the internals and remote lever.

>>> Best dropper posts in 2020

One Up claimed its original dropper post (now known as the V1) was the shortest, long-travel dropper post on the market. What this meant was it had the lowest ride height and shortest insert depth, allowing you to squeeze a longer dropper post in your frame. The new V2 continues this theme.

To keep things simple and limit set-up hassles, the One Up Dropper Post V2 is cable operated. It’s routed from the bottom up, which means the cable nipple is held in an insert at the bottom of the post and is then anchored at the remote. One Up actually sells the remote separately (so the price above doesn’t include it) which means you can run a compatible third-party remote if you choose. One Up’s remote offers four different options (two Shimano, one SRAM and a stock bar mount) and they are all £42. The remote is nicely machined, has a textured paddle to enhance grip and runs on a silky-smooth cartridge bearing.

The post itself also uses a cartridge design, but in the sealed, hydraulic sense of the word. This is more reliable and easily replaceable should you have a problem – One Up sells spares for £60 a pop.

Although there are four lengths offered, each once is adjustable in 10-20mm jumps by inserting some small guide rods into holes machined in the side of the shaft. This is actually about a 10-15 minute job and is something you can do at home – the parts and instructions are included in the box.

Another simple set-up feature is the saddle clamp, which has slots that allow the upper clamp to just slide in and out without having to totally dismantle everything. I actually found the One Up Dropper Post V2 one of the easiest posts I’ve had to install, and I’ve fitted most models on the market.

Initially the V2 didn’t return to full extension and on the first ride I had to manually pull it, but it bedded in and is now working as intended. I noticed there is quite a lot of lever travel for it to activate, so you may struggle if you have small hands and it also doesn’t feel the smoothest when it’s going up and down, but again, it has started to feel a little smoother with use.

One of the things I sometimes notice with longer 170mm droppers is there’s quite lot of flex in the shaft, but that’s not been the case here – with One Up’s increased bushing overlap there’s minimal fore/aft play.

In an ideal world you want to run the longest dropper you can, but often the limiting factor is the lack of space between the frame and the seat and also in the frame itself, especially if you have an interrupted seat tube or any suspension hardware in the way. I ride a large frame and my current post is a 160mm drop, but i managed to get a 180mm drop One Up post in there. And that extra 20mm has made a world of difference – the saddle is a lot lower for jumps or riding steep stuff. I can also put the saddle up to my ideal climbing position without have to extend the post and I can get all of it in the frame, so it looks way cleaner. If I didn’t have enough space with One Up’s design, I could also tweak the travel, which makes it one of the most versatile I’ve tested. It’s also lightweight for post with this much drop, the quality and finish are top notch and it is fantastic value for money. This is one of the longest droppers I’ve tested, but it’s one of the best and easily deserves top marks.


Weight:545g (46g remote)

Sizes:30.9, 31.6 and 34.9mm

Lengths:120, 150, 180, 200mm


Dropper one up

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Super easy way to service a OneUp V2 Dropper Post - Clean, strip, grease and re-build in real time

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