Horst link bending forces

AMuzi wrote:

A complete bike is normally attributed to the
framebuilder, that is, a classic Masi
frame(Milano built with British tube & French
lugs) sold in Chicago and assembled with Dura
Ace is considered an Italian bicycle.

Speaking of Dura Ace, I have never actually
seen it/them - they are made in Japan,
I take it?

What about Ultegra [Di2], 105,
Tiagra, Positron?

I've heard that the regular cyclist isn't
benefited from or won't even experience
a difference moving from Ultegra to Dura Ace.
Except for when it fails and s/he has to
acquire spare parts...

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underground experts united
http://user.it.uu.se/~embe8573