First Look: KS Genesys Integrated Dropper Seatpost

Jul 15, 2018 at 10:22
by Richard Cunningham  
Bold Unplugged 2018
Bold's Unplugged enduro model will be the first to offer the KS Genesys dropper. The seal head clamps to the frame. The solitary, 30-millimeter stanchion gives the frame a cleaner look.


PB's Ralf Hauser attended Bold Cycle's 2019 launch and returned with some intel on a new integrated dropper seatpost from KS. It's called the Genesys, and it shares many of the same components that KS uses for its LEV conventional droppers, including the cable remote and gas strut. The advantages of an integrated post are fewer parts, the ability of the user to customize the extended length to maximize the seatpost drop for a particular frame size, and the possibility of using a stronger and larger-diameter upper stanchion tube. KS accomplishes all three of those benefits with its Genesys dropper, according to Bold's Global Product Manager, Vincenz Droux, who was on the ground during the post's development.


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Bold Unplugged 2018
(From left) The Genesys integrated dropper is fixed to the inside of the seat tube with a 10mm through-bolt. The hole can be seen at the base below the cable-actuation lever. The large-diameter 30mm-stanchion slides inside the silver seal-head sleeve (center), which fits into a 31.6mm seat tube, and clamps to the frame's seat tube in a conventional manner. The two pinch bolts beneath the saddle clamp (far right) allow the hollow stanchion tube to be trimmed with a hack saw (like a fork steerer tube) to establish the optimum saddle height at full extension. The saddle clamp offers 10mm of vertical adjustment.


Bold's Vincenz Droux Talks About the Genesys Dropper

I understand that Bold was a development partner with KS on the Genesys Dropper. Will KS be offering this to other makers besides Bold?


Vincenz Droux: Yes they will. Bold is the developing partner within this project. So we had a perfect cooperation with the brands, KS and Bold, to get this out there. But in the future, also other Brands can profit and have the benefits of this system.

There is a clamp-on seal head. Is this to ensure that the frame can be retrofitted with a conventional dropper for lower-level spec or future customers?


Droux: The top end of the seat tube is a conventional 31.6mm seat tube with the two slots for clamp that can use a conventional seat post clamp and any standard dropper seat post. [Standard] spec is the KS Integra, with up to 175mm of travel.

The little extra that the frame must have, is the fixing point further down the seat tube, to have the possibility to go with this new Genesys integrated dropper seatpost. So what you see on the picture (lead photo) is the Genesys version clamp which contains the inner sleeve to stiffen the top end of the seat tube, the seal and the sliding bushing.

What stroke lengths will be available? Will its stroke be adjustable by the consumer?


Droux: The Genesys goes up to 150mm of travel. So if you are looking for 175mm, the solution will be the Integra with conventional mount. The Genesys will be cut on customers needs. The [stanchion tube] needs to be cut, similar to a fork shaft. Then we have still around 10mm of individual adjustment (with the seat clamp head). If the customer wants to sell the bike one day, we offer separate [stanchion tubes], which are easy to replace. Each Bold we build with the KS Genesys, the extra second [stanchion tube] is already included.

There is a clamp-on seat-mount head. Does that give access to an air-pressure valve, or is there another reason for it?


Droux: You can do the 10mm vertical adjustment with that. Also, you need to remove it to cut the stanchion.

How does the weight compare with a conventional dropper?


Droux: The weight will be the same as on the standard dropper post.

Bold Unplugged 2018
A titanium bolt fixes the post's internal mechanism inside the seat tube.
Bold Unplugged 2018
Bold's new Unplugged enduro bike (with a conventional dropper here) will be the first to feature the Genesys post, which debuts October 2018.


Is There a KS Genesys Dropper in Your Future?

According to Bold, KS will be shipping Genesys integrated droppers this fall. All of Bold's new Unplugged frames are configured with the seat tube bolt arrangement and will offer that option. As mentioned earlier, KS plans on offering the post to its OEM customers as well, so we expect to see the Genesys post appear on other brands come Sea Otter 2019. KS joins Eightpins, who pioneered the integrated concept with its brilliantly adjustable (and expensive) mechanically actuated system. Eightpins has received excellent reviews, but as expected, has not made many inroads into the OEM marketplace. With KS coming into the market with an affordable alternative, that could change soon.

What this technology offers you: At the least, integrated posts will clean up the look of your bike and make it a lot easier to clamp your bike in a work stand. Rders who put a lot of lateral stress into their posts will appreciate the significantly stiffer stanchion tube that the larger-diameter stanchion of an integrated post offers. If you are one of the may riders who fall between frame sizes and are disappointed to discover that you were a little too short to ride a 150-millimeter dropper, both Eightpins and now, KS offer a long-stroke post that can be cut to length, without sacrificing the ability to fine-tune your maximum ride height.

The Eightpins 33-millimeter post requires a larger-diameter seat tube, and while a sleeve is readily available to shim frames to fit conventional dropper posts, the key attraction of the KS Genesys is that it fits the popular 31.6-millimeter seat tube diameter. That should convince a number of brands who have been keen on the concept of an integrated post, but reluctant to dedicate their frames to a new "standard" to opt in.


75 Comments

  • + 41
 Allright, I don't see any benefits to conventional dropper posts except for the cleaner look. Can someone give me a hint?
  • + 23
 larger dia stanchion?
  • + 4
 @nojzilla: at the same weight... booo!
I was hoping that finally dropper posts would become lighter, but i guess the larger diameter tube, as well as the clamp are undoing this.
  • + 3
 @Br4inm4n: LEV weight isn't too bad at all
  • - 6
flag IllestT (Jul 20, 2018 at 2:18) (Below Threshold)
 Larger stanchion, which is better because....?
  • + 23
 @IllestT: stiffer which means less flex and therefore better for seals.
  • - 4
flag jzPV (Jul 20, 2018 at 2:27) (Below Threshold)
 And if you don't want your saddle to be slammed all the way for descending you can't have a consistent lower position...
  • + 2
 @IllestT: strength to weight, more seal surface for reliability
  • - 1
 Nothing about this sounds appealing to me. When it inevitably fails, what then?
  • + 0
 @Unrealityshow: I have to agree. I hoped for more Frown
  • + 17
 @Unrealityshow: Uhh...you buy a new one or rebuild what you already have. Just a guess. lol
  • + 5
 @Br4inm4n: It makes no sense, a larger tube affords a lighter tube with the same or more strength. There are clamps in all droppers, so that is no different. Plus they removed a whole other wasted outer tube that normally encloses the whole structure. How on earth can it not be lighter?
  • + 4
 @Unrealityshow: When it inevitably fails, you have the option to just replace it with a conventional 31.6 diameter dropper post. Only problem is it will have zero resale value in the used market.
  • + 4
 And only 150mm? Thought theyd get at least 175 if not 200 offered
  • + 4
 The benefit was never meant for you, the benefit is for KS.
  • + 1
 The best feature is that you now only have 10 mm of height adjustment: better be sure where you cut it!!!!!!!
  • + 1
 More money to spend?
  • + 1
 easier to service maybe? since you have to service is crap every week like I had to on both my commercials till I got rid of them
  • + 1
 @Unrealityshow: The system is reverse compatible. You can still run a standard dropper in the seat tube.
  • - 1
 @russthedog compared to a regular seat post it's awefully heavy.
@rasterman yeah, but look at those clamp. It look's huge, while i didn't see any clamp at a reverb, if I'm not mistaken
  • + 0
 Right. I'm on the fence here regarding esthetics let alone function.
  • + 1
 @Unrealityshow: you send it to KS for service, have your shop rebuild it as they would any dropper or you get a standard dropper post to replace it.
  • + 0
 @warmerdamj: what's that even mean? " The benefit was never meant for you, the benefit is for KS."
  • + 21
 I hear that it's lever has an Invisible Touch.
  • + 8
 Letting the professionals set it up, you'll never get it 'in too deep'.
  • + 4
 I am not confident at puns. Truly The Land of Confusion for canines.
  • + 16
 Won’t be able to change crank length after or switch shoes. Some of my shoes are thicker than others or clips to flats . I’m guessing after you cut the post to length you’re stuck with thAt length unless I’m missing something. Not great for resale either
  • + 7
 Exactly, my seat height varies depending if I ride flats or clips. Not being able to adjust it easily would be PITA. Also with so much standover these days, the seatpost is almost always extended way more than 150mm from the top of the frame on most bikes. I have 170mm dropper and the inner stanchion starts good 50-60 mil above the frame. If manufacturers want a clean look I would really like to see bikes without the spaghetti of cables on the handlebar. Some integration similar to what we can see on modern road bikes - no cables in sight and when paired with internal liner in the frame - dead silent. That would stoke me through the roof.
  • + 6
 Or a growing rider
  • + 12
 This. Even with a new bike, there's usualy a bit of trial and error getting saddle height right. I'd avoid buying a bike with one of these
  • + 12
 It's adjustable by 10mm and they'll sell you a replacement post if you cut it down.
  • + 1
 @lp130i: Alutech has a product for hiding the cables on the handlebar. Just seen at the recent Eurobike.
  • + 4
 @lp130i: its 150mm travel, doesn't mean that's the length of the stanchion- i bet it's plenty long for low stand over bikes.

10mm should be enough for clips vs flat? Maybe? I also ride both but I don't swap regularly- i keep one for a while.

I would love one of these
  • + 2
 @russthedog: my seat height difference between clips and flats is about 5mm.
  • + 2
 @patrick-marsh: shrinking riders will work just fine Wink
  • + 3
 Internal everything! Why can I not store water in my frame tubes already??
  • + 1
 @mountainbikesteve: not bad with a boxxer on there but no internal routing for the hydration hose Frown
  • + 8
 Why is dropper seat post stack height not more of a big deal? whats the point of having 170mm of drop if when its down it sits 50mm higher than a standard seat post? surely the whole point of the dropper it to get the seat out the way? Lets have more post like OneUps [Low stack, adjustable travel, reasonable price, user serviceable.] Rant over...
  • + 1
 Yes! I just replaced a 125mm Transfer with a 170mm OneUp. Per their site, I was going to have to shim it a bit to fit. I was quite surprised to find that the low clamp height on it meant I could get the full 170mm travel when I adjusted it to my seat height.
  • + 7
 and when i get a new seat with less padding or a shoe with a thicker sole i hacksaw a quarter inch back on?
this must be the most impractical product design in the history of mountain biking!
[Reply]
  • + 5
 What I would have wished for is that you wouldn't have to use a hacksaw on your seatpost but just clip in spacers at the bottom of the stanchoin to reduce the extension. In that way the ugly seatpost head clamp could have been removed and replaced by a one piece clean design.
  • + 1
 or you could separate the clamp from the seatpost and slide the whole seatpost up and down???
  • + 5
 I'm all for integration of droppers, but this execution seems to have more drawbacks than advantages?

Lighter? No.
More stroke? No, less.

The eightpins seems to do this quite a bit better, although at the price of a setup nightmare...
  • + 8
 Probably the integrated dropper will become the next "new standard" which many of us will truly like and support.
  • + 1
 Could not give a toss about Boost, 12 speed or Ø+. Give me this, now.
  • + 3
 Except now there are TWO integrated dropper standards. And I wouldn't be surprised if each company puts their fixation bolt in a different spot, claiming engineering supremacy for their creation of a new standard.
  • + 4
 OneUp approach to stroke adjustment is the way to go IMHO (or any other shim procedure), and you can avoid that terrible horrible seat clamp head. And, as said above, 150mm (at max) looks like XC stroke these days.
  • + 3
 Bladdy brilliant, classy and the next bike I get will have one like this that’s for sure. One of the things that’s wanted integrating for ages. Only thing I can see being a pain is setting the height, but I’m sure that’s been covered by various manufacturers. Plus you’ve only got to do it once. Neat!
  • + 5
 Collar to rail is pretty poor with that clamp mechanism on the stanchion. If weight is the same I see little point.
  • + 1
 I think this is a cool idea, but with only 150mm travel it is useless for me. My bike now has 170mm travel dropper and there is 30mm+ space under the collar meaning i could likely fit 200mm. I am not short, but at 6'1" I'm not that tall either.
  • + 1
 They just went too short....especially since an integragrated post goes all the way down to the clamp. Should come in different sizes maybe 150mm for sm, 175mm for med, 200mm for lrg kinda thing. Cut them down to the perfect fit after and make replacement stanchions affordable and you have a winner. Especially since it's backwards compatible.
  • + 4
 KS is answering questions that no one is asking...
  • + 1
 I was asking. This idea is brilliant and make the bike look super clean. However eightpins is technically doing a better job.
  • + 4
 Can't we just all go to 34.9 seat tubes?
  • + 1
 Looks, like should be an opening on the seat tube to access dropper post head so you can remove post cable to abjust but that would mean changing too new industry standard that makes sence?
  • + 1
 Meh. I'm happy enough with my old style, externally routed reverb. If the post craps out or has to be sent off for a service, I can throw a normal post and QR clamp on in seconds.
  • + 1
 Sorry, but i dont see that this option is cleaner. There is a clamp and the sealing looks like the outer tube of todays droppers... Eightpins is here way ahead. Especially with 220 mm of drop for a shorter seatmast
  • + 3
 I am done with KS, never again.
  • + 2
 So basically this post is useless on my current bike. Obviously, NO SALE!!! stop with the bullshit KS!!!
  • + 2
 I dont know, but this is the one greatest slack nice tidy looking non e bike modelling.
  • + 2
 Solution to a problem that doesn't exist. Add to that, ks posts are garbage.
  • + 2
 would never buy a bike where you're locked into a KS product. Ever. complete deal breaker.
  • - 1
 This is sorta like internal cable/hose routing. Its geared towards the people who enjoy staring at and taking photos of their bike rather then riding and wrenching on it. It will look sick when they post that sunset bike pic with the lake in the background.
  • + 1
 Agreed with all the haters on this one, wish KS had just invested all this money they threw away on making their normal droppers more affordable or lighter instead...
  • + 1
 150 is too short for anyone over 6ft. Gta stick too much of the base out, then gta double drop for the steeps.
  • + 2
 Another way to obsolete the current frame... Good job -_-"
  • + 2
 My 185mm revive will do just fine Smile
  • + 0
 So if the bike is picked up by the saddle is all the load going through that 10mm ti bolt?
  • + 1
 10mm steel bolt will do about 20kN in shear or 35kN in tension. Don't know about Ti but will be higher. How heavy is your bike?
  • + 1
 @AyJayDoubleyou: The frame will break before you reach 20kN as the bolt has only a small surface on which it can get the forces into the seat tube.
Don't know if it is at least a through bolt or only from one side.
  • + 2
 Oneup did it better
  • + 1
 ...oh and I forgot clamp head height, which is also worse

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