I've been having a problems with the crank bolt backing out on my Tru-Vativ cranks. I don't have a torque wrench big enough to torque it to spec, but I'm giving it all I've got and its still backing out. Maybe I'm just a weenie. Anyway so I pulled it apart and took a look. There was a ridiculous amount of grease on the threads and I'm wondering if that would do it? I removed much of the grease, reassembled, and went for a quick ride. Okay so far. But any ideas on other stuff to check?