kwalters wrote:
Theoretical question: A frame builder makes frames
in even sizes; you are interested in a 60cm or a 62cm.
After studying the respective geometries and comparing
them with what you have ridden in the past, you decide
a 61cm would be best. However, builder doesn't offer a
61 and you can't afford a custom build (don't even want
to discuss it). Would you go a size up or a size down?

(And, to the pundits who would say: "Ride them both" you
have to say" "Impossible to do in this town".)

So, who would go with 62cm & who with 60? & why?

Thanks. Ken

Since no one else wants to give a constructive answer. I would pick
the larger of the two if it is truely the difference between a 60 and
62 cm frame. Assuming top tube is 58 cm on the 60 and 59 cm on the 62.
And you want a 58.5 cm top tube. I've had too small bikes in the past
and could not get them to fit right. I've had luck getting too large
bikes to fit well. If the difference is as small as described above,
then you may never even notice the difference in the frame once you are
riding it.