Aww man, bike repair fail.
I thought my Crank Brothers pedals were dying (again), so instead of paying for another rebuild kit I bought some cleats for my Time ATACs. I installed those on my shoes, but the noise in my bike is still there! Damnit! It's the ****-ass Truvativ bottom bracket that's done. BTW, this isn't a tick, but a horrible crunching "exploded bearings" sound that's basically exactly what a blown-up CB pedal sounds like.
Grr ...