I have a chainring bolt, campagnolo, that I have so far be unable to get off the crank. It is holding (the remaining one) two NR chainrings mounted to a GS crankarm, if that makes any difference.
I have used the appropriate Campagnolo took with the little prongs; one of the backside slots is now slighly mangled. The bolt and fastner keeps turning together, and I cannot find a tool, or any other device--already tried a large screwdriver-- that will fit the slots that I can hold sufficently tight to loosen the screw with the hex wrench. I've tried needle nose pliers holding the backside, used enough liquid wrench. I've exhausted my limited understanding of tools and bankrupted my equally limited imagination for devising something that would work.
Any help out there.
Thanks.
Tom
Tom Hayes
18585 Munn Road
Chagrin Falls, Ohio 44023
hayes@jcu.edu