Hi Gang
I picked up some dura-ace AX cranks to replace the 600 models on my aero project bike. The original 600s have hex bolts and a little two-pin retainer (like a dust cap only with a central hole) that appears to be screwed into the crank threads. I assume the procedure is simply to loosen the hex bolt, forcing it against the retainer, and thus removing the crank arms. And then (since I want to swap cranks and have only one set of bolts and retainers), I need to find a pin tool small enough to remove the retainer, so I can get the hex bolts out. Am I missing a step? I confess to never having worked with self-extracting crank bolts before, and I don't want to miss something crucial by following an "intuitive" approach. Additional vintage content: is this crank bolt system a distinctive AX feature (i.e. an innovation in its day), or a standard design?
And don't worry, I won't ask whether to grease the crank tapers!
Ron Cooley
Saskatoon Canada