Thompson seat post in a Ti frame, should I use a bit of carbon grease or leave it bare?
Do I need to use carbon grease with this seat post?
Fibre Grip or similar - yes.
Ordinary grease will be fine. Its there primarily as a barrier to prevent corrosion. No need for carbon grease in this application, unless you're having slipping issues with normal grease.
Carbon grease is used on carbon frames or seatposts as petroleum based greases can cause the carbon to swell.
should I be using it on my carbon post/ steel frame?
i just used a bit of finish line teflon stuff
Carbon posts need carbon grease IMHO.
Not worth risking the post getting contaminated and swelling as it's a buggers only job to remove.
Tacx do little 4oz tubes of it I believe.
Nice one, cheers. I've some carbon grease that came with a carbon post - I may was well use a bit of that.
Kimbers, yes you should. Degrease the post and the frame first to be safe.
i tend to raise lower the post with a QR is this gonna be ok with the paste?
Paste serves 2 functions, its composition doesn't cause the post to swell and it contains small granular particles that increase grip, reducing the tension needed in the clamp.
I got a tube of Tacx for a few quid which should last years, and is cheap insurance for 3 carbon posts and a carbon frame.
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