Just noticed this on my frame the other day, here's an album:
sb-66 - Imgur
Whenever Im in the lowest gear up front and the suspension cycles, it rubs against the bolt head. I am not sure how to remedy the situation. I've tried setting the limit screws and readjusting the derailleur, but neither of those helped at all. Currently running a 3x10 with a Sram X7.
Just wondering if anyone else has run into this problem.