You are reading a single comment by @Purple_Mist and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@Purple_Mist
How big is the hole in the seat post? Maybe you could tap it with an M12 or similar, alloy is easy to tap. Cut the threads deep as you can because it's soft. Then borrow/make a slide hammer. I would have used plus gas to soak it in (you buy it from Halfords/autoparts store) caustic soda is alkali, adding coke/vinegar (those of you using balsamic earn way too much!) is adding acid - it will neutralise the effect.
I would probably also heated the bastard up with an oxymapp torch by this stage but someone on here might well say that's stupid because it might affect the temper of the frame (I learnt my skillz on cars.) I would do it carefully though, you want to only heat the seat post. It might screw the paint up but it's worth it for that bike.