Ashtabula Cranks and Super Sport
I know, real boat anchors.
I have a 70 something Schwinn Super Sport. Not for the weight weenies. But it sure rides nice. The previous owner installed a single ring cotterless crank with the BB converter doohickie.
So, looking at Super Sports from the 60's I see a couple different chainring designs were used for the Ashtabula cranks. And they look much better than the 70's double chainring with chainguard monstrosity that was standard on my Super Sport. Thinking of converting back to Ashtabula with a nice chainring design. The 5 pin "Sprint" model looks particularly nice. With the big diameter BB I would think the bearings would be smooth runners. And the ease of maintenance is certainly a plus. What think ye?