An alu seat post can stic in a Ti frame very quickly

[jowwy]

my alu post has never stuck in the Ti frame

 

[green1]

my alu post has never stuck in the Ti frame

If they are isolated from each other electrically you okay, its when they are not that you run into problems.

 

[PatrickPending]

I needed carbon paste to stop my CF post slipping in my Ti frame, but it works a treat!

 

[HLaB]

Success, the post is a bit of a metallic gluey mess (for want of a better word but I'll be able to clean it up and use it (just removing often) until I get funds for a ti or cf post. Might try that one on cyclehero.com, I can afford to wait if needed now :-)

 

[Sterba]

I wonder if titanium is the culprit? I have not heard much about ally posts sticking in chromolly steel frames such as 531. Yes, if you leave them there with no grease for a long time, but not something that is bound to occur. I never have any probs on my old steel bikes, all equipped with alloy seatposts. Anyone have any thoughts about the disadvantages of titanium as a frame material? Why isn't anyone responding to my query about handlebars on the Buying Advice - Components thread. Please take a look.

 

[HLaB]

I don't know if its down to Ti or just luck I've heard of folk having similar problems with other materials and a alloy post; I'm just glad I caught it in time.
As to 26mm bars the only time I've bought them, it was from a bike shop and I forget the brand and specifics on grooves and drop dimensions. I suspect the reason your not getting a reply is because other people experience is similar to mine.

 

[Globalti]

I've had a carbon post in my Ti frame for years and it doesn't stick. However as it's a mountain bike, muddy water runs down the post and the grit gets trapped between post and frame, which galls when you try to rotate the post to remove it as it's a snug fit anyway. All the lacquer has long been worn off it. Usually it starts moving easily enough but gets tighter and tighter as the dirt builds up. The only answer it to clean everything up and hang the bike upside-down and clean out the seat tube with a rag on a stick.

 

[raleighnut]

I don't know if its down to Ti or just luck I've heard of folk having similar problems with other materials and a alloy post; I'm just glad I caught it in time.
As to 26mm bars the only time I've bought them, it was from a bike shop and I forget the brand and specifics on grooves and drop dimensions. I suspect the reason your not getting a reply is because other people experience is similar to mine.

I've posted this a few times but do not use grease in this location it can actually promote corrosion you should use petroleum jelly (Vaseline) as this is chemically inert and helps to stop galvanic corrosion. Id still be tempted to take it out every couple of months though!

 

[robgul]

Having followed this thread, and just bought a Van Nicholas, I looked on the Van Nicholas website ... in the FAQ it says that a Ti seatpost will bond itself to a Ti frame in time!!

.... I then e-mailed and asked them about a Van Nicholas alloy seatpost in a Van Nicholas Ti frame ... message came back to ALWAYS use copper grease (sometimes branded as Copaslip) with a Ti frame, whatever metal the seat post is made of (presumably CF wouldn't be a problem?)

Rob

 

[jowwy]

I just make sure i pull the seatpost as part of my cleaning ritual

 

[raleighnut]

Having followed this thread, and just bought a Van Nicholas, I looked on the Van Nicholas website ... in the FAQ it says that a Ti seatpost will bond itself to a Ti frame in time!!

.... I then e-mailed and asked them about a Van Nicholas alloy seatpost in a Van Nicholas Ti frame ... message came back to ALWAYS use copper grease (sometimes branded as Copaslip) with a Ti frame, whatever metal the seat post is made of (presumably CF wouldn't be a problem?)

Rob

Yeah copaslip would be OK its a b*gger to clean up though, its marketed as high temperature anti seize assembly compound after all