Steve Irwin wrote:
Right, well that's a separate issue :)
It will have been assembled with threadlock. A little heat can help with the threadlock, but I put the crank arm in a vice and have used a 1.5m length of scaffolding pole as a spanner extender to get enough leverage to remove the lockrings from factory assembled cranksets. If you use the same technique it's at your own risk, I'm just telling you what I've done to get them apart in the past - I haven't broken one yet, though.
P2M offered me help so I will send the crank and sensor into their factory. Should be there on Wednesday. I tried with heat, but unfornately the German winter this year was too warm, so I did not do enough strenght training to get it turning...
Thanks for your help.
The guys from P2M offer awesome support.