I'm in the process of replacing my worn sprockets and chain and need to remove the speed sensor rotor, it seems, to access the big nut on the sprocket. The sensor itself is now out of the way. So far, my attempts to remove the allen bolt in the center have failed and I've bent a decent wrench in the process. I'm assuming this is a normal right hand threaded bolt? Do I need to apply heat to break it loose? Am I doing something wrong?
I have a big road trip planned in a few weeks and am doing some prep work beforehand. FWIW, after lots of cleaning since last summer, I found more Dalton Hwy mud packed in there today. I'm not sure I'll ever get it all off the bike.
Allen head cap screws are notorious for this. Hit it with a little penetrating fluid and then tap on it lightly with a small hammer several times and then try your Allen wrench again. Sometimes if you load the Allen and then tap on the end of it sharply it may break loose. A hand impact driver most always works.
To prevent this happening again (no guarantees) install the screw with a little anti seize on it.
Thanks guys! This forum is sure handy at times. I soaked it with WD40 while I went to work for the day and bought a new air ratchet on the way home. She broke loose fairly easily after that. Job is going well now.