Originally Posted by
Steve M.
These are all good. The clamp is stock, and the bolt is tight enough that I worry about tightening it up further. I like the carbon paste idea. I think a bit of grit on there would do the trick.
you dont want "grit" in there at all.
start with the basics first. just use standard bike grease on the seat tube. seems counter-intuitive but, it will actually help hold the tube in place when clamped. after trying that, if it still isn't working, you can try the carbon paste. an important note here is that you should periodically clean the old grease off and reapply with a thin, fresh coating of grease. grease attracts and collects dust, dirt, and grit which you don't want in the tube. if this doesn't work, i think fietsbob's suggestion of adding a seatpost clamp of 31.8mm ID to to the post itself is a good suggestion (that will definitely work).