I recently installed a new fork on a bike I'm building up. I find that before I get the preload tension correct on the top cap to remove knocking, a squeaking sound starts emanating from the steer tube area when I turn the handlebars.
I am going to disassemble the whole stack tomorrow and make sure that everything is on in the right order and that nothing that shouldn't be there is present.
FYI I put the crown race on and installed all the bits of the headset and everything looks fine. Does anyone have any experience in what might be causing such a noise?
If it makes any difference, I'm using a carbon steer tube and a "problem solvers" expansion plug.