Chuck wrote a long time ago (from the archives):
> I don't believe the 61s were produced alongside the 68s. Typically a
> small manufacturer produces one part and the tools up for the next
part
> until they have all the parts they need. When side pull brakes became
> popular again in the late 60s with Campagnolo's introduction of their
> side pull brake there would be little or no demand for center pull
> brakes on race bikes.
Well maybe not top-end race bikes, but I remember some "one down from the top of the line" production race bikes that came with 61 C-pulls well into the 70s - in numbers that couldn't have just been left in the pipeline since before '68. Bottecchia Pro & Motobecane Grand Record spring to mind. I'm convinced Universal made both brakes for a time after the 68 came out.
Mark Bulgier
Seattle WA USA