Howdy folks.
I just bought a Nervar crank, really for the arms as I want to do a TA chainringed triple. The chainrings on it, that I am pretty sure are original, are strange. Here is a picture: <http://tinypic.com/view.php?pic=9bcebm&s=4>. The big ring is a 54 (!) and the small ring a 40, an odd combo. The weird part, in case you can't see it very well, is that there is what looks like a pants guard for the small ring sandwiched between the big ring and the small ring. It (of course) serves no purpose whatsoever in there. Anybody know what is going on with this? Is it mis assembled?
Doug Van Cleve
Chandler, AZ USA