I just finished my (n.o.s) '07 intense 6.6 build. Took it out for the first time today. My front brake squeaks like the sound of a train when I engage the brakes. As I was riding down and coming close to some trail walkers, I was slowly braking and I scared the crap out of the walkers!!! Seriously sounds like a train! So I only used my rear brakes the rest of the way down.

Any idea what's causing this?

Other than the f'n brakes... the 6.6 was a bike people praised it to be! Climbs great, descends like a champ.