I agree that the Ashtabula crank is an excellent design, even if usually rather crudely executed. They certainly served Schwinn well in its lower models. Frankly, I think they are ideal for children -- cheap, sturdy, very large bearing area, easy to work on if they need fixing. I do sometimes wonder about Q -- they seem to be inherently wider than separate spindle and crankarm types. Certainly they are better than the cottered design, at least for kid's bikes.
Having installed a "cotterless" adaptor on an Ashtabula shell, I personally don't see much advantage for a child's bike. All I got from my conversion was cool factor and a narrower Q
--
"Believe nothing until it has been officially denied."
-- Claude Cockburn
-------------------------
Patrick Moore, Albuquerque, NM, USA
For professional resumes, contact Patrick Moore, ACRW
http://resumespecialties.com/index.html
-------------------------