Some bike company should be paying you to do these instructional videos. You have some of the best bike maintenance vids on KZfaq.

Thank you so much for making this video. People like u allow us to keep our Giants running smooth

Great tutorial Clint! I don’t know what I’d do without your knowledge and willingness to share. I’m riding tmrw thanks to you. You’re the man! My trance will live to fight another day.

If only I had this to refer to last week. I made a right mess of removing the seat post and took me ages to get the plastic housing out of the seat tube. You learn from your mistakes or from Clint's awesome tutorials. Thanks Clint.

I keep coming back to this video every year when I service my dropper, very well done

This video made the service on my Giant Contact dropper post a short and easy job. Thanks Clint! It's very smooth now.

Killer tutorial! My dropper post feels like it's brand new now. Can't thank you enough for this tutorial. So simple and to the point. On a side note, I used Teflon grease on mine as I didn't have access to other type of grease and so far it's doing an awesome job.

One of the best videos on bike maintenance I have seen. Thank you

During yesterdays ride the collar somehow got lose and dirt got inside. Thought that servicing would be a hassle, but this video made it extremely easy. Pulled it all apart. Cleaned everything. Added some grease, put it back together and mounted it to the frame again. Dropper motion is back like it used to be. Thanks for the great video. Keep it up!

Thanks HEAPS for that video Clint! Really helpful and really clear. Keep up the great work 👊

Just now doing this for my giant trance, we’ll see how this goes! Awesome tutorial!

super well done video, clearly explained. I had to sift thru 3 other poorly explained videos before I found yours. Thanks much.

Fantastic video, very well explained, like your channel a lot. Keep sharing your great knowledge.

Thank you! My post was feeling kind of mushy and slow, now it’s a bit faster and way smoother!

Very helpful. Im an engineer, you think that would make it easy for me.. but a little knowledge teaches me to be cautious when stripping components, having a video like this gives me the heads up on what's inside and how to approach it. A real schematic if you will. Thanks Clint.

Just did this - so easy.... Amazed how much dirt gathered inside, on a 1 year old Giant Trance

Top video thanks Clint, clear and ace! Cheers

Got the same bike and it's perfect working now. Thank you. 👍🏻

This post Ive found is great. I thought I'd service it but when I stripped it it was as clean as a whistle. I do have a protective cover at the rear to keep the rear wheel dirt off it. Just a piece of Gortex held on with elastic chord

Very helpful, thank you!!

It’s basically the same as an TranzX dropper!thnx for video!

Super informative 👌 thank you!!!

Perfect video! The plastic keys on mine seem to have failed after just a few months. Haven't opened it yet, but the saddle can spin the stanchion all the way around.

Thanks for this!

I love how Giant advertises those plastic slots as "Anti-Twist Technology"

Brilliant video.... gave me the confidence to take a look at whats going wrong with my post. It keeps dropping as if the leaver isn't locking off completely. I will now go take a look! Hopefully I can fix it with a once over.

Great video

Very helpful thanks

Thank you for this!

Man I continue to learn more from your videos than any other source of info... Question though... I need to replace my cartridge but it says it is discontinued what would be my next cartridge option

Thanks legend

When wiping off the inner post @ 3:00 be sure you are aware of not only the long slotted insert locators but also the split plastic ring/bush on the end of that post. It is easily dislodged and may go unnoticed.

Question: How about doing this service when the Giant seat post is set up for external cable routing ? What are the differences ? ( as on my Trance XO 29-er 2013 model..)

Many thanks to you kind sir.

So much easier than on the older models.

Excellent video. What was really weird is that my Fathom 2 dropper failed during a recent ride. After watching this excellent video and disassembling, I found out that the bottom plug to the seat post where the cable connects was not threaded into the seat post tube. How can that happen?...or did the guy who assembled it new at the bike shop I bought it from 6 months ago forget to fully thread it in? I threaded it back in, re-greased, reassembled...better than new!

Awesome! Was thinking mine could do with some tlc after 4 yrs! 👍🏻

Hi Clint. I have the same bike. I was wondering if there is a way to help with the rotational seapost play. Mine has more then it did when I bought it. Maybe servicing it will help? Thanks

I have an Giant XL Full E Pro with this seat post and I need a shorter seat post. Short legs, what can I say. When I have the post all the way in it pops up too high so I always have to adjust on the fly. Just a riding nuisance. Is it possible to shorten the post by cutting an inch off the tube?

My eternal, undying gratitude Clint! Any chance of a "How to service Suntour forks vid" :) ?

My Giant dropper post had two plastic shims on the base of the inner post. When I took it all apart one fell off of the post. I can't get the post back in the larger tube when I just place it on the tube. Is it needed?

Very informative video, could you sometime measure the dropper seatpost properly to see where are the specific measurement points, for example Giant says 395mm but from which point to which. thanks in advance.

Excellent. tahnskyou

CONTACT & CONTACT S SWITCH DROPPER SEATPOST REPLACEMENT CARTRIDGE In which size "mm" is this cartridge for giant mountain 2 2018 model? is it 340mm, 395mm or 440mm? because i need to change my cartridge its automatic going up everytime and i need to sit for it about 3 seconds to make it stable.

what to do if this thin wire at the end does not reflect back. So the switch doesn't work. I can pull it out. It's loose

I dont have suspension grease can i use normal bike grease

you do have to grease them. I had a muddy race and it seized. Clean them up and they are good as new. there is a shim kit available now to replace that plastic collar. its what seems to wear and cause play.

Does anyone know if there is a “d-fuse “ compatible dropper seat post for the tcx?

1) The metal nut on the end can also stay stuck inside the black cap you unscrew, giving you nothing to work with. Carefully use pliers to turn the gas canister itself and it will detach. 2) Strangely the video does not mention the shims which stop the saddle rotating. These break very easily and then the saddle will rotate freely, probably to the left about 1/8th of a rotation. There are two TINY SLIM bits of plastic at the top that stop the post rotating, and I just turned one around. I was pretty shocked at the cheapness and fragility of the internals and am looking at an upgraded dropper.

I have the same question a lot of other people probably have, does anyone know where you can find replacement slider sets or what other brands would work? Third ride on my TranceX 2 and the seat is rotating over 90 degrees to one side. Haven't talked to my bike shop yet, but I assume they'll tell me they don't have any parts.

I'm not seeing the small white plastic tabs. I can't seem to reinstall the outer sleeve while keeping them in place.

Is possible to replace the plastic pieces that doesn´t permit the movement (right-left) of the seat post? and what is the name of that? Thanks!

the button of my dropper dont came out that means i need a new cartridge?

1:37 I can‘t pull it out.It keeps been stuck at the top

Hola tengo una tija telescópica Giant Contact, la desmonte para engrasarla, al volverla a montar ahora retorna lento, a que se puede deber?

How did you just pull the post out like that? I have a 2018 trance 2 as well and my post is completely seized. Any tips to break it loose, thx?

Hello, great video, could you please write what kind of cartridge did you use and where did you order it? I have a Giant Contact Switch w/ Remote, 30.9 seatpost (year 2013). Is it still possible to get a compatible cartridge? Thanks, Gregor

Quick question. I have this post on a 2019 Fathom and it doesnt go all the way down in the frame which makes it a inch or two too tall when the seat it let out all the way. Is there a way to make it shorter ( the portion going into the frame)? thanks

Hey! Thanks for the instruction. Do you know what to do, when the saddle feels like it’s lose somehow. Can turn it a bit to both sides… Seems the problem comes from inside the dropper post… any idea?

thanks for the video! super helpful, do yo know how to identify the generations of contact dropper and where to buy a new cartridge?

We need an updated video with 2022 post : )

I can't get the upper collar to come off. I've even tried vice grips...

After a fall in the trails my seat post is moving sideways. I don not find a way to keep it tight and dont want to take it to the Giant dealer before giving it another try ... any recommendation?

Saved me from taking it to the shop, one question, how can I check if the air cartridge should be replaced?

Nicely explained, thank you. I’ve been having a real hard time trying to find a replacement cartridge generation3 Contact post, everywhere is out of stock, are they still making them?

My Giant seatpost on my Trance 2017 is wobbly. So my saddle turns from left to right an inch. Do you have the same problem...and can I fix it?

Great vid. My dropper post is seized. Cable is free so assume it is the cartridge? Is it simply a replace cartridge job?

I couldn’t tell; did you make an effort to thread the cartridge back into the bottom cap as you threaded it into the main tube? Or does it self locate fairly easily?

my dropper is stuck...when I attempt to unscrew it from the top, it will not budge. i am unsure what to do...

Curious to the overall length (not drop length) of that post (assuming it came from a medium frame you usually ride). Reason being; even with the post recessed fully into the frame on my medium giant, I have to ride with the dropper down 2-3in for the saddle to be at the proper height (using the 1.09 method you showed in another video!). Thanks for any thoughts

Need help. I got a giant reign 2 2019 and my dropper freely rotates 360 degrees. Tried to open it and It seems that the upper post doesn’t fit with the lower post? (whatever you call it). Ps. I also alligned those two plastic strips to the grooves of the dropper but it still rotates 360 degrees.

I have a problem. My dropper seat post is stuck in the highest position and it will not go down even when I adjust the cable tension. What do you recommend?

Does anyone know where I can buy the plastic keys on the inside of the post???

I have found the older model seat post problematic, the new ones work great. Like the way the new one comes apart inside so you can reset and clean it better.

Is my Giant Contact SL the same as yours? It came on a giant anthem 1 2017

Pretty easy. I have a 100mm air cartridge on my GF's bike. Any idea if I can swap it for a 125 for longer travel? 100mm is pretty short

was just servicing my dropper post for my giant trance 2, which I think is the same as the one in the video, and have found that my cartridge actuator is broken and I am needing a new one. I was wondering what the name of it was so that I could buy a new one that was correct for my model. Thank you!

My 2 year old Giant seat post retracts well, but when I want to extend it, it jerks and hardly comes up. If I put a little pressure on the back of the saddle it suddenly extends fine. The tension on the cable doesn't seem to be the problem. Does anyone have an explanation for this, is my seat tube crooked or what could be the cause? Didn't have any significant falls with it.

Clint, do you have any experience with attempting to install internal cable housing? Whatever i try seems to get stuck around the downtube/seatpost joint. Man this is frustrating not being able to see what is going on...

my dropper post keep on sliding down when I sit? what is the solution? great video @clint gibbs

Clint the dropper on my 2017 Anthem is slow to function, I was told my the BS that because the stanchion is faded it has been comprised-only solution is to replace with a new one. They've never replaced the cartridge nor have they even suggested it

My post is leaking oil from the bottom of the cartridge. Do I just need a new cartridge???

The little "arm" that the cable connect to at the bottom of the post has no tension on mine. You can just flip it up and down. Any fix for that by chance? This video was perfect and explained everyone so well and then I discovered my little issue....

5:14 - having an issue where the steel braded cable is not visible like yours is here. Mine is snugged all the way to the collar of the plastic sheathing, and if I pull on the top of the cable (small metal cylinder at the tip) I can't expose any of the steel wire. help please!

I think i have this exact dropper post but what worries me is that it moves left and right. How can i fix that?

Clint, how to add air on the air cartridge for the Giant Contact dropper post?

Hello Great video! I have just serviced my dropper, it was really easy, but it is still geting stuck on the way up. What could it be? not enought grease? Not having put grease on the cartige? tank you

Is it possible to just add air to the cartridge? my seat isn't returning fully and saw that it could be due to low air pressure. but this looks like everything has to be taken apart and you just have to replace the cartridge. I couldn't find any other info online for this dropper

As soon as i put back my dropper post and reassembled it the dropper post is going down even if I’m not clocking the dropper post lever and I try to adjust the cables but it didn’t do anything...can you possible help me on what to do to solve this problem of mine

How to open the tranzx 150mm dropper cartridge????

Is there a part number for the cartridge, mine will return but will not hold position, it sinks a few inches. I have to repeat the "press and sit" routine a few times until it finally holds.

I have bought a brand new giant dropper post. It will not drop. I’ve tried everything..... any suggestions. It is brand new and have never been able to get it to drop. It’s driving me insane

Hi Is it possible to "lock" this seat post to prevent it from twisting/rotating while you ride?

There was no end cap on my cable housing :/ I've bought a new bike and the seatpost has never been opened before! :/

Спасибо. Наглядно понял, что стоит необслуживаемый картридж. Ставлю лайк за внятную речь. Жаль нет ссылки где купить такой картридж.

My giant dropper is annoying , it make me have to put a little pressure on the seat while hitting the switch for it to come up.. if I don't keep my butt in contact it will stop... It's been cleaned and serviced but still won't work right. Any ideas?

Is there an obvious way to tell if the cartridge needs replacing. My has stopped working I'm going to strip down, clean and regrease. But won't bother to refit if its obvious I need a new cartridge. Great video btw

What pressure should the air cartridge be at?

Any tips on the old model?

Where can you get the plastic keys? Mine rounded off.