Originally Posted by
scr660
I have a truvativ rouleur crank with integrated gxp bb. The chain slack idea is interesting - I'll see if taking links out helps.
I have the same style crank and issue only after a few hundred miles of riding. replaced BB and removed all chain rings, added grease to threads, then re-assembled. I dont think it was the BB now but try the chain ring first then re torque the bb.
The sound was normally at the top of the drive side.