Looking to replace my alloy post with a ti one for a bit more flex.
Anyone encountered any problems with sticking? Can \i get away with my usual copper slip for lube?
Bike Forum
Ti Seatpost + Ti Frame = Recipe For Disaster?
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Posted 4 months ago #
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After 3 years I've had no problems. Using frame manufacturer's own seat post. I think it's some sort of ceramic grease that's been used.
Posted 4 months ago # -
i think there's a reason you can't use copper slip for it. could be wrong, though!that's not true, it appears!
Posted 4 months ago # -
Ive had no probs with an eriksen in a lynskey on-one.
Light smearing of grease when I can be bothered.Posted 4 months ago # -
Not sure why you would need any lubricant, titanium doesnt react much and is highly resistant to corrosion it shouldnt be sticking.
Posted 4 months ago # -
haven't had problems with mine on a djab
which i could be selling as i'm splitting the bike
Posted 4 months ago # -
Been using an Airborne Ti seatpost in an Airborne and then an On-One Ti for nearly 10 years and never had a problem. I don't use any grease as it tends to make it slip down unless you use unreasonable amounts of torque on the clamp bolts. I am very heavy though!
Posted 4 months ago # -
Titanium/ titanium can have problems of galling, so use a metal prep grease.
Posted 4 months ago # -
Many Ti frames use alloy shims so no great issue.
New Van Nicholas ones do use a welded ti insert though.Posted 4 months ago # -
I run a carbon one in mine, very comfy, but I can't get it out...
And won't be forcing it until I have to.
Posted 4 months ago # -
Carbon in a Ti frame here too, very comfortable indeed.
Posted 4 months ago # -
aP - Member
Titanium/ titanium can have problems of galling, so use a metal prep grease.I doubt it, shouldnt be much movment between te surfaces.
Posted 4 months ago # -
My Ti Merlin has an Al insert built into the seat tube.
Posted 4 months ago # -
Pay careful attention to what sc-xc says:
Posted 4 months ago # -
Titanium and aluminium in contact together can result in significant galvanic corrosion of the aluminium. With the corroding aluminium swelling up and doing damage like this:
http://pardo.net/bike/pic/fail-001/FAIL-102.html
Titanium in direct contact with titanium, with the two surfaces rubbing, sliding against each other can result in galling (cold welding). MoS2 molybdenum disulphide.
http://www.sandsmachine.com/grease_t.htm
Titanium against titanium can also cause problems with fretting.
Posted 4 months ago # -
Had a ti moots post in my ti ibis for about 11 years. Just keep in well greased and check annually.
Posted 4 months ago # -
Any particular grease to use or avoid? I've used copper grease on my Ti frame with Ti seat post with no visible problems.
Posted 4 months ago # -
Posted 3 months ago #
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http://www.youtube.com/watch?v=MrdG-swqbCQ
The experiment uses Titanium and Aluminium tubes of the same diameter and thickness. A Ti seat post will have significantly thinner walls than an Aluminium. A Ti seat post will be designed to allow for some flex. To a certain extent flex in Aluminium has to be engineered out, due to material fatigue from repeat stresses.
Posted 3 months ago #
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