My personal road bike built from a Columbus
Neuron tube set with an externally butted
seat tube, Fillet brazed top and down tube, and a lugged cast bottom bracket shell.
used a traditional 73 seat and head head tube angle, but improved
rigidity and responsiveness by using a semi compact design. Neuron
has been superseded by Zona is a mid to upper range
Nivachrome set, light enough for racing, yet tough enough to be able
to transport without too
much risk of damage.