Originally Posted by
RoadJerk
A torque wrench? Jeez... Yea i know what special tool youre talking about, but I only had to use that for the bolts that held the smaller chainrings to the larger one. These bolts (and the one original) holding the crank and ring together are regular hexagonal nuts.
And every time I tighten them down I do it to the point where I cant go tighter without stripping the heads. They just keep coming loose 30 minutes into riding.
Jeez for a torque wrench?
So the other things I said?
did you lubricate the threads?
Are the bolts too long?
Edit: I somehow missed your picture, so disregard the bolts being too long option, did you lubricate them?
I have an TA crank that uses the same set-up and I've never had the bolts come loose on me.
Edit again: Now that I understand what bolts your talking about I Might consider thread locker if I was in a jam but if you have the money to upgrade certainly do. The fact that you "do it to the point where I cant go tighter without stripping the heads." tells me either those bolt won't work for that application if they're comming loose in 15 minutes