I'm getting a squeak from my hybrid's seatpost whenever I hit a big bump. I've taken the post out and re-greased it, checked for cracks on the post or anything else in that area, removed and re-attached the saddle and tightened the clamp. The only thing left that could cause the squeak is the useless suspension "feature". I'll probably replace it for a normal seatpost soon, but meanwhile does anyone know how to stop the damn thing squeaking? When I had the post out there's a hex bolt on the inside which I guess I could either (a) tighten or (b) loosen to muck about with the insides; I didn't fancy doing either when I don't know what I'm doing.