How to, KS Lev Si Dropper Post Maintenance, kind of...

[@def1010]

Thanks a lot for this excellent video. My post has been sticking lately, and after following this, it's now running smooth as butter. Managed to avoid breaking that part and chucked some loctite on there as suggested.

[@TonyHob]

Awesome, glad it helped!

[@alexpinny01]

Another vote of thanks for this video - much easier following your instructions than the "official" KS video. My dropper is now running perfectly once again.

[@justincase9415]

Thanks for posting this up. T’was very helpful. I used a 7/8” wrench in place of a 22 mm and it fit nicely. Also, I had a heck of a time finding the P26003 plastic bushings. They measure 2.17 mm dia new and 2.00 mm dia old with a little wobble in the post. I might try to make new plastic bushings for a future service 2.17 mm dia and 9.95 mm long. I had to mash them into the slot with the side of the pick. Just seems like there oughta be a better way. The results are great, my post is back to super smooth and solid operation.

[@cainsvids3088]

Excellent video! Got to the end and broken the same part! 😂 went 1.5 yrs w/o maintenance! I will get on a 6 month interval, thinking June and December.

[@raphaelbarrosdesa8936]

what a great video, thanks for sharing Sir!! ps: KS Mast End Sleeve part is made of a very bad plastic, mine broke within 1 month of use in a brand new bike, Polygon T8 2020 (i believe due to bad cable management) but then, i bought a brand new part just like you did and when i went to tighten it back on it broke (bare in mind it was a brand new part) already orders a second one, but this time i "won't tighten it" as i previously did. I better find the way... Great video again! 🤜🏼🤛🏼

[@jromdahl]

Hey, did you add part 2 for this. Interested in seeing the spring/coupler removed and reinstalled.

[@TonyHob]

A little things went wrong from the start, including some rain. In the end, broke one of the parts. Actually seems to be a common problem. Oh well..

[@sampep]

Bummer! Good stuff making a wood shim! Ill never buy a KS dropper again i think..my last 2 only lasted a few months before it started sagging

[@edpaek]

great timing, im pulling apart the same dropper now. Would love to see your update

[@TonyHob]

the part is supposed to arrive tomorrow

[@khaledsaeed6018]

Hi Tony. How did u have rust in the tube? Isn't it Aluminum?

[@TonyHob]

Aluminum can still oxidize (corrosion) and become pitted. I think salt from sweating made it worse

[@daffyduck3066]

Hey Tony do you remember what size wheel set you went with on the schwinn taff project

[@TonyHob]

They were standard 29” QR wheels (WTB i25)

[@SP-vd9wh]

Did you also have the problem that it sunk in 1cm while sitting on it and your cleaning without changing oil resolved the problem? Just thinking if I could skip the oil part, too...

[@TonyHob]

Mine was not sinking with weight, just slow and some play

[@peterroberts9835]

Literally just done the same 😭 the part seems hard to source in the uk though

[@TonyHob]

when I redid it I basically hand tightened it. It breaks way too easy

[@peterroberts9835]

@@TonyHob I will do the same. Assuming I can get one that is

[@TheKjlongtine]

How do you initially remove the post from frame? I have never done that and cannot find a good demo on how to do it.

[@TonyHob]

loosen the seat tube clamp, pull the post out the top and unhook the cable barrel from the bottom of the post.

[@Smerigventje_]

How did you manage to get the broken piece out of the cartridge?

[@TonyHob]

It broke during reassembly. I just unscrewed it back out using a small pick to turn it

[@abdulkamaruddin1748]

Cara service seat post Drive si

[@richardpowell1425]

I would release the pressure. Not worth the risk of something going wrong.

[@TonyHob]

Probably a good idea

[@josuebut22]

Where u buy it the black broken part

[@TonyHob]

I made a f/u video that has the link and how to install it since you use the old internals on the new one. I bought the part here: www.worldwidecyclery.com/products/ks-actuator-assembly-for-lev-lev-si-and-lev-ci-30-9-31-6