Trying to insert a seatpost into my frame, it goes in fine for the first 5-10cm but then gets mucho tighto and can't be pushed in any further. When I remove the seatpost it's coated with a thin layer of black sticky grease, guessing this might be the culprit? Do I need to clean the seattube out somehow, if so, what with?

cheers 🙂

some degreaser on a rag on a stick? 😕

is it bent?

edge of a steel ruler along the rear and hold up to light to see.

I'm with GW, seatpost is probably bent.

better bloody not be… it's titanium, so it'd be tough to do?

Is this a euphemism?

Is this a euphemism?

😆 seriously laughing myself silly re-reading what I typed in light of this comment 😆

If it is a euphemism, how'd you recommend I sort my issue?