Originally Posted by
Bianchigirll
The three rings are riveted together and the middle on is the base. the steel middle ring is, I believe the term is, Swaged onto the alloy crank arm. it is something like a press fit. I am not sure what your thinking about having a machine shop drill to accept new rings.
Don't think that's what he's suggesting. He's talking about drilling new pedal mounting threads. Never done this myself, but I've seen it done successfully.