Originally Posted by
a.bandini
I'm having trouble removing these crank arms. I have a 7mm allen key which fits the bolt, and I can get some slight movement counter-clockwise, then nothing.
Maybe a 1/2 turn, then it becomes very difficult and I don't want to damage anything by pushing further.
As long as the extracting rings are still in place (you didn't make progress removing them?), those self-extracting crank bolts actually work well.
Keep rotating the 7mm bolt counter clockwise past the initial point of resistance and the crank will...pull off the axle.
What are you working on, exactly?