Originally Posted by
dksix
I have a question.
It's common to hear that Shimano lets the technology trickle down as new technology comes into production. With that shouldn't the 6700 Ultegra of 2009 be the same as the 7800 Dura Ace of 2003? I'm not looking for an argument, I'm not saying they are the same I'm asking what's the difference?
How thinly can you slice the baloney?
When I built up my recumbent I found some XTR derailleurs from about 2 decades ago in my parts box. Within my tuning ability I can't imagine anything working any more crisply. If new ones really are better I'm thinking it would take laboratory grade instrumentation to document the difference.