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I am very confused about this seat post. If I read this https://int.oneupcomponents.com/collections/dropper-posts/products/dropper-post-shim, it sounds like it can actually perform magic.
My 170mm seat post doesn't go far enough inside my frame for the post's collar to go as far the frame's collar, in other words, there is a gap, of about 20mm.
But if I read the above, that gap can disappear if use the shim. Can someone more intelligent than me (ie most people) confirm that's not possible, ie the post can't shrink.
The shim just limits the travel. So, if you used the shim to limit the travel to, say, 150mm then the total length of the post would be reduced by 20mm, but the gap that you are talking about would indeed be the same.
Well it’s arrived and fitted with a wolftooth lever.
Feels spongy to operate and it has some rotational play at the saddle. Doesn’t feel better than either of the brand x droppers did when brand new. Time will tell .
Mine me feels so much better than my 120 brand X. No play in mine and it doesn’t feel spongy, although I’m using the one up lever, not that it should matter.
You can adjust the air pressure in the post, there is a valve under the seat clamp, have you tried that?
So now there's a few out there in the wild, how is the lever? Is it a nice light action?
mine arrived today
If the lever is spongy, the cable probably needs tightening. Also, check the cable housing can move freely at the post end.
No rotational play in mine at all, much better than my Reverb.
didn't fit so sent back 🙁
@poah out of interest, how did it not fit? I thought that the combination of small insert length plus custom drop length would have made it pretty likely to be ok.
Also, if it's a 170mm where are you sending it back to? Nickfrog has kindly sold me his but there might be others like me pretty keen to get their sticky mitts on one with current UK stock levels.
check the cable housing can move freely at the post end.
This if it's feeling spongy.
Mine felt terrible until i rerouted the cable with some more slack at the bottom of the seat tube.
It works by holding the inner cable stationary at the post end and moving the outer cable to activate the mechanism.
If there's not enough free movement for the outer it feels shite.
I clearly made a massive balls up in my calculations. It was a 150 back to ubyk
Sending the post to cup o tea tomorrow but fitted the lever today on the old 120 Brand X. It's fine, probably not revolutionary compared to say the Wolf one but quite an upgrade in smoothness and control over the Brand X (not difficult).
Sending the post to cup o tea tomorrow but fitted the lever today on the old 120 Brand X. It’s fine, probably not revolutionary compared to say the Wolf one but quite an upgrade in smoothness and control over the Brand X (not difficult).
Really interested in this as it'll be either the OneUp or Wolftooth dropper that will be replacing my Brand X XL lever, the brand X one is pretty floppy, there's a lot of movement in the pivot, it's also quite stiff to operate and creaks and clicks a fair amount when doing so. Oh and the clamp has to be tightened quite tight or else it slowly rotates around the bar!
As you've used both with a Brand X post, which would you say is the best? I'm guessing the Wolftooth might be a bit lighter action that the OneUp lever. The main thing I want is a lever that's got zero play in the pivot and is nice and light to press, and a bonus if it can fit to multiple brake levers. The OneUp's USP is that it's lever is in the upshift position rather than the downshift position like every other dropper, but I'm not sure if that's a good thing. TIA 🙂
There is zero play whatsover despite not even having had to adjust the barrel thingy. The action is immediate and triggers the dropper with the first 15%/20% of lever travel, it's quite uncanny. It's very smooth and allows perfect modulation despite the short travel. I haven't had a proper ride yet so will probably report back this weekend.
I can't comment on the clamp as I have the Ispec version which is well engineered.
I quite like the position actually, it's even more out of the way.
@nickfrog awesome, cheers - when I said 'play' I actually meant up and down play in the lever, lateral play - the brand X lever wobbles up and down loads more than it should. I wasn't expecting there to be any in the Oneup lever, it's just of my many qualms with the Brand X lever.
I look forward to further reports 🙂
Understood. The Oneup lateral play is probably a 10th of the Brand X one but then again that's not saying much.
Anyone selling a 170 31.6 post
Great back up from One up.
I ordered a 170 post, whilst fitting I managed to bend the actuator .
They very kindly sent out a new actuator for free even though this was my fault .
Whilst fitting I’ve realised the 170 is really too long for my frame and inside leg length.
They have said they’re happy to swap the seatpost over for the 150 version.
Really pleased with their response and thought I’d share my experience .
^^^ surely you could just use a shim to drop the, er, drop, to 150mm???? rather than send it back??!!
DrP
The trouble I’m having with the post is it’s contacting a suspension pivot in the frame.
The lower on the 150mm is 20mm shorter so will sit 20mm lower in my frame .
Bit of feedback based on a couple of hours use:
I'm pretty tall so went for a 170mm drop (on an XL Stumpjumper 29). Bike was in for a service so the LBS swapped out the Spesh command post for the OneUp, hence I can't comment on how easy it is to fit or set up.
For comparison I've only ever used Reverbs and Command Posts. From the off the post feels great, a very smooth action, the return is quite fast but nothing like as fast as the command post. The lever feel is great. I was hoping to re-use the spesh lever but it wasn't possible in the end. Not at all disappointed as the OneUp lever feels nice, the actuation is quite light but positive and feels good to me. It was also easy to get it in a good position on the bars and it felt immediately intuitive while riding. There is a tiny bit of side to side play in the post but I've never had one of any brand that didn't do this.
I still have a couple of inches of post showing out of the frame but the extra 45mm drop over the command post feels fantastic, the saddle is so much lower on steep stuff that I don't even know its there now.
Based on a couple of hours use it's great so far, but will see how it goes over time.
Quick bump as I'm building upa bike currently and the spare Reverb I had in the shed is rough as a badger's whatsit and I'm not optimisic that it will last beyind the first ride. These seem cheap, they have lots of travel (I have room for 170) and have a matchmaker remote, which is everything I need. - anyone else using one and liking it?
My Reverb is starting to feel a bit shit and difficult to compress so have just added one of these to my birthday 'wishlist' (very optimistic, lol) and a Wolf Tooth ReMote to go with it. The extra drop will be nice.
@honourablegeorge if you're planning on using the remote with Hope Tech 3 levers then I'm sure I've read in this thread that <span style="font-size: 12.8px;">they</span><span style="font-size: 12.8px;"> </span><span style="font-size: 0.8rem;">don't work.</span>
Ah - good to know, fathomer, that was the plan. Will go Wolf Toth instead. Thank you.
Yeah they're not a straight forward easy fit - although I read in one customer review that they'd manged to alter the hope adapters somehow to make it fit, not sure how though.
edit: was on the Oneup website:
Pieter P:
Nice minimal design with smooth function and good leverage (resulting in low operating force).
Setting up with the post is easy.
Be cautions on which version you need. I ordered the MMX version thinking it would fit non-SRAM matchmakers (e.g. Hope). This is not the case. I made it fit by modifying the Hope matchmaker to accept the One Up lever.
singlespeedstu
It works by holding the inner cable stationary at the post end and moving the outer cable to activate the mechanism.
Wait...what?
In reply to those switching between dropper levers - the best upgrade I made to the Brand X post (which I assume would work with any cable operated post) is to use an old front mech shifter.
They are a bit bulkier but seem to have a far better action than the dropper lever designs (haven't tried OneUp but have tried WolfTooth/BX) and there are plenty of cheap ones around after the big change to 1x drivetrains!
One Up clamps at lever though, so can't use a front mech shifter.
Wait…what?
You just need to make sure there's room for the outer cable to move a bit.
Yeah, if you're moving the post around to get the hight right… make sure you don't pull the cable housing tight stopping it from moving. I did that first ride… it confused me for a whille.
I upgraded my 125mm Reverb Stealth to a 150mm OneUp Components Dropper, after realisng I wouln't be able to get a 150mm drop reverb to fit due to frame design (Giant Reign Advanced). Have previuisly been impressed by OUC stuff also. So far , so good! I liked the fact the lever can be mounted to the XT brakes, and the feel is every bit as premium as the reverb - more so if you include the fact it doesn't have any sag! Anyhow I also now realise I can actually fit a 17mm drop post, which I have ordered - so if any one is looking for a very low use 150mm OUC Dropper (30.9), giz a shout before I ebay it. Should come with a shim, if I don't need it on the 170 once it arrives.
I thought I will give my opinion on the 170mm OneUp dropper post.
I've had a 150mm Fox Transfer for over a year but Oneup attracted my attention because its lower stack (so more room when I slam it down).
Now, I've read a lot of good opinions about this post and I have a couple of Oneup products and generally I'm happy about them. However, this post is to put it simply just<b> rubbish</b>.
- this is my second, brand new, oneup dropper. The first one was faulty out of the box. Horrible grind when compressed and extended
- the second one doesn't grind as much but is far from buttery smooth. I read a few opinions on some forums people comparing it to Fox Transfer saying it's as good/smooth. It's not true. You can feel friction at all times, quite similar to Giant dropper in this regard. Fox just feel friction-less in comparison. It's something you don't miss until you experience it. Saying that, I can live with this if you give me low stack in return.
- The absolute dealbreaker to me is related to clamping. I found that anything over 3nm on seat collar causes the dropper to either not return fully (e.g. it stops 80%) or slow return or just give more friction/grind. My frame recommendation is ~5-6nm btw. Now, I wouldn't have a problem to go by with 3nm or whatever if the (seat)post stayed in place when I ride - but it doesn't. Sorry but how the hell this post the quality control with such major flaw?!
- I use Wolftooth remote and the lever motion is just way harder & less smooth than with Fox transfer. I suspect this is because Oneup moves the outer rather than inner cable to trigger the dropper - which imo is just stupid design
- the dropper is super sensitive to inner cable tension. anything under or over a certain tension and it behaves odd
- shims is still out of stock after 2 months of ordering. Seriously, being out of stock with (very overpriced) piece of plastic that you advertise as the main selling point?!
- smaller issues. Return speed isn't as fast as I would like to (air pressure ~270psi), and the pop when it gets fully extended isn't as loud as I would like. Small things and not dealbrakers.
The post is going back where it came from. I love the low stack but Oneup needs to get back to the drawing board; bad design, bad quality control and bad execution. Even at half price it's money wasted if it doesn't work properly
Interesting. I must admit I don't recognise any of that. Mine was simple to fit and has been flawless for the past month. It also came with the shim. No idea what my seat clamp tension is, I just did it up with an Allen key like I always do so, about yay tight. But it doesn't slip and the post returns pretty rapidly. Lever (OneUp) action is light and post has never missed a beat. Not sure how smooth it is to be honest, but smooth enough that I've not noticed.
I've never used a fox transfer though (and at that price I doubt I will). Maybe they are just so good that they spoil you for anything else.
Even at half price it’s money wasted if it doesn’t work properly
Is your seat tube slightly oversize?
I've not had any of the problems you've mentioned, perhaps I'm just lucky. I wish that luck worked with Reverbs…
Also had absolutely none of those issues, and mine was one of the original first batch. It's now been moved onto a second frame and still works perfectly. It's as light as the Transfer post I have on the other bike (which I will be selling for another 170mm OneUp post shortly 🙂
I've had no issues with my one up dropper.
Slight tangent. Gave my mate some guidance whilst he was assembling his new Jeffsy. I don’t know if it the post or the lever but the e13 post has the nicest action of any I have ever tried. Made all mine feel a bit shit in comparison - including the OneUp...
No use to me, but if you need a 30.9 150mm or 170mm, they're 159 at Evans and SAVE30 takes off 30 quid.
I have both a 150 fox transfer and a 170 One Up. I can find no difference in actuation. They are pretty similar, obviously it's nice to drop the seat lower. I have a wolf tooth on the fox which I think is nicer than the One Up lever - but there's not much in it.
I have had the fox for a year or so and its been flawless. the One up for a couple of months and so far so good.
I'd recommend either!
I miss days where I could just go to the physical shop and try things out myself instead of reading contradicting info on i/net
Oneup dropper does NOT feel the same as Fox Transfer in terms of its operation! When you compress Oneup by hand or while riding you can feel that slightly grindy resistance ...compressing Fox Transfer is way more smooth and easier in comparison (I can do it with my thumb). It's hard to explain but it's instantly noticable and there is abosolutely no way you cannot notice this. The same goes with lever operation. I used the same cable and the same lever (Wolftooth). It takes way more force to move the lever when you have Oneup post. It may or may not be dealbreaker for some but I think it's important that people know before they part with their money. Even more so considering how often you will use the dropper (imo good dropper makes a night and day difference in ride enjoyment). The same goes with seat clamp torque as per my previous comment - that's a proper dealbreaker imo.
Whoever says both of these posts (Trasnfer and Oneup) actuate equally smooth is misleading others. This applies regardless of the seat clamp torque and it's not a deffective unit as I've had 2 of them (and if it is than QC is really bad). Some people seem to be blinded by the lower price and/or will take anything that has Oneup written on it.
It's fairly clear you have a bit of an axe to grind. Not to say you haven't had an issue with your particular seat post, but as you can see on here, you are pretty much the only one who has, that doesn't make it gospel though.
Whoever says both of these posts (Trasnfer and Oneup) actuate equally smooth is misleading others. This applies regardless of the seat clamp torque and it’s not a deffective unit as I’ve had 2 of them (and if it is than QC is really bad). Some people seem to be blinded by the lower price and/or will take anything that has Oneup written on it.
I think you will find that was me. Not sure why my post is any more misleading than your claims though. As I said I'm replacing the transfer post on my other bike with another OneUp because I want the extra travel, I (as are many others on this post and other on the internet) mostly happy with our purchases. Mine is as smooth as my Transfer post, and as reliable so far.
For the record, this is the only OneUp thing I have ever bought. I won a chainring at a race once though, if that counts?
Maybe you should just go an buy another Fox post to make you happy again 🙂
Have tried to install my new One Up dropper today, but so far I can’t get the post to drop or rise
On arrival the post was probably half dropped. I couldn’t actiuate the post by hand, but figured once installed cable tension would suffice.
I’ve watched a couple of videos and followed the instructions. Took me a while to get enough clamping force on the One Up remote cable clamp to stop the cable slipping but this isn’t the issue
I checked the pressure in the spring and it’s 285 psi... so bob on
Any tips or pointers from the happy customers on here?
You should be able to do it by hand, but you push up on the collar rather than pull down on the bit the cable attaches too, if that makes sense.
Not sure, i fitted mine and it worked first time and faultlessly since then
So, I can’t get it to move by hand... reckon something might be wrong, but having had it for 3 weeks while waiting for my new frame, I’m loathe to lose any more time
The green ano housing into which the cable goes is very loose... turn the post upside down with the O ring off and it slides in, turn it back and it slides out. There is no resistance. There appears to be something black further into the actuator which perhaps should protrude further to allow me to fit the cable end into it?
Any more pointers before I contact One Up?
It should fully extend if you just push hard on that “housing” (the U shaped but of metal that is held on by the o-ring. If it doesn’t then I guess it’s bust.
Anyone had any joy contacting One Up directly.... how did you do it?
Not getting any response via email
Can’t find a phone number
Only fair to say that the replacement post they sent me is a joy to use... very impressed based on ease of installation and driveway test ride
Strange they seem to have disappeared from UBYK's website 🙁
They are still there. Was literally looking to buy one this morning.
https://www.ubyk.co.uk/oneup-components-dropper-post-custom/76945
Well, bit the bullet and ordered one of these (170mm, 31.6). Going to shim it down to 120mm and hope it fits!
Also got the Bontrager Drop Line 2x remote so it doesn't interfere with the Twinloc on the Spark.
Am I right in thinking that you can trim the spacers and get the exact height you desire? Just thinking if it goes all the way down to the collar in the seat tube, I'll be able to get full extension to my desired height?
Cheers JohnW, it would appear their website it poop on mobile. Google links don't work and their search is broken!!
Ok looking for some advice, i've got a 150mm Oneup post for my new build but it's come to my attention that the way the post operates Via the cable out requiring to move(as opposed to the the inner like most others) may not be compatible with my new frame. The dropper exit port has a snug grommet and the clamps, ..as per this.
It;s not been used, can be returned...but i'd be struggling to get another 150mm post to fit i think :/ , I would've really like more drop.
Should be fine. My FlareMax is pretty similar. Just need to make sure that there is a bit of slack, but that’s just a case of pushing a few mm of the cable into the seat tube to be on the safe side.
Tight grommets on my Orange too, I was gonnna say the same as Roverpig - just allow a bit of slack in the seattube.
but that’s just a case of pushing a few mm of the cable into the seat tube to be on the safe side.
+1 it's really not a problem.
My Oneup dropper is on a Kenevo where the cable entry is kind of really restricted around the motor. But it still works really well.
Thanks fella's, if it dont' work..im blaming you now 😛
Received mine from UBYK (£166.50 with STW discount) and it looks like it should just fit. I hadn't realised just how long the post is! It may be the shortest stack height above the collar, but you need a frame with a long seattube for full insertion. 450mm + 32mm for the the actuator gives me about 5mm to spare on the tube and I hope the actuator works because that will be in the kinked part of my frame.
Can't try it yet until Shimano hurry up and release the E7000 ebike shifter to make room for the dropper lever. Current E8000 shifter is a crap design 🙁
Any more opinions on these posts? Has anyone tried them compared to a Revive? How smooth is it, any reliability issues? Is it best going with their lever or an alternative?
To add balance my Oneup dropper has let me down after 2 months. It loses 50psi a week. From new the travel was never smooth and slowed down towards the top even at the max 300psi. This quickly led to the post not going to the top and stopping where it slowed down. I always felt the tolerances were unnecessarily tight and that the total absence of sideways movement is at the detriment of very high friction but not sure this is related to my issue. A poor product IME and hopefully they'll do the right thing from a warranty pov
Sorry @riklegge I've only just seen this.
I've had a Revive and a couple of rides on a One Up. Not a long-term test really, but to be honest they feel very similar in function. The One Up is the first dropper I've had with zero movement in the post.
I did have to warranty my Revive though and the replacement never felt as smooth. Can't really speak on the longevity of the One Up though as it's staying on the Spark when I get around to selling it 🙂
A bit of humble pie following my recent post : Oneup replied to me within 30mn with the following advice:
- It doesn't leak but the cartridge is so small, the reading is down to air going into the pump when connected.
- They also explained how to resolve the high friction preventing full return : unscrew the collar, pull out the white insert, grease it, put it back together and move the post up and down 50 times. This has worked so all good, hopefully permanently.
Hope sram adapter, hacksaw and spacer. Solid
Looks like Oneup have brought out a new version with 150 / 180 / 210mm drops:
https://int.oneupcomponents.com/collections/dropper-posts/products/dropper-post-v2
UPDATES:
Shortest total length of any dropper
Shortest stack height of any dropper
New upper DU Bushing in the upper collar
Increased bushing overlap and durability
100-210mm post lengths in 10mm increments.
20g lighter
A new remote also which is made of aluminium.
Annoyingly I just bought the original one about a month ago.
210mm dropper, now that's a proper dropper post!*
*applicants under 6ft need not apply 😀
Also like the look of their new EDC stem, no need to thread the steerer tube.
I think I might just be able to squeeze the 210mm into my Remedy. I've got a 185mm in there already (Bikeyoke) but it suddenly seems shrivelled and inadequate.
If anyone wants a MK1 post there's currently $30 off the price - so making it around £129 delivered.
https://int.oneupcomponents.com/products/dropper-post
I had a few problems getting the dropper to move, due to the outer cable housing being used to actuate it rather than the cable.
The bottom of the dropper is close to the exit port on the seatpost, and the cable routing bends tightly. Like dumbbot's picture.
The moving cable outer was binding on the edges of the exit. First I enlarged the port but that didn't help much. Then I ground a chamfer on the inside and outside of the exit which has fixed the problem.
The actuation is usable but heavier than other posts - Thomson, BrandX, Reverb.
I also found that, unused over the winter, the actuator got quite sticky and the post lost about a third of its pressure and wouldn't return to maximum height.
Adjusting the air pressure is a faff as the saddle has to come off to reach the valve, and getting it all together again is fiddly.
Quite easy to check the operation off the bike - press the post down on a flat surface, to depress the green actuator at the bottom.
Apparently OneUp are working on a new actuation mechanism which will use cable movement rather than outer housing, which would be a welcome improvement.
Apart from needed air twice mine has been faultless in past 14 months. Been through all sorts of weather conditions and washed many times.
Hard to fault. I find it super smooth and has the least amount of play of any dropper I have tried. It’s also the only 150 dropper I could fit in my frame.
New one is out in June, but until mine proper breaks I feel no need to change it!
@dumbbot - did this dropper work on your Swarf in the end? Just ordered the same frame and was thinking of getting this dropper.