Originally Posted by
Nighttrain
Thanks, Sindy, good advice. I used marine grease during the BB and crank replacement. I even wondered if the BB loosened because I packed so much in, lol. There's some Medium Strength Lochtite downstairs so I'll try that and mark the locknut position to the crankarm to see if it's backing out.
It's not the lock nut coming loose. At least not on my bikes.
I don't use loctite at all. Just some grease on the threads. The
assembly itself never works it's way loose. Once I tighten everything down, it remains tight forever. It's only the
feel of the adjustment that changes. Nobody is 100% sure why, but one piece cranks are notorious for this.
Even Sheldon Brown and Jobst Brandt acknowledge this phenomenon. And offer no remedy.
