Squeaky front disc

[Shaggy]

I have Avid mechanicals on a unsuspended singlespeed. I just put a new fork on and now the front disc squeaks when braking. I tried new pads and re-aligned the calipers. Any suggestions on how to make it stop?! Thanks!

[rlith]

Which avids? Try taking some 1000 grit sandpaper to both sides of the disk to see if that helps. (clean with alcohol or brake clean) Is the disc true?

[Jason]

Try switching your rotors front to back and see if it quits, or borrow someone else's front wheel. Sounds like the rotor is contaminated somehow.

[Shaggy]

Thanks - just tried the sandpaper. I'll se if that works tomorrow.