I'm looking at a new Dura Ace cogset (strictly from a weight savings view) so my main concern is that as long as I get a 9 spd and it is HG like my 105 is then I won't have any problems. Correct?
I want to do it now while my drivetrain is new and not broken in plus that will leave me a good 105 backup as well.
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When it's good it's really good...And when it's bad I go to pieces - David Bowie