Here's the deal about component specs:
I used to know how many component groups Shimano made. I can't keep up with them anymore. How thin can you slice the baloney?
Back when I knew how many there were, I couldn't sense any difference - none at all, if I moved up or down one component group. The high end stuff was obviously "more crisply" operating than the least costly offerings, but THEY ALL DID THE JOB.
I've never used Dura Ace stuff because the prices have always exceeded my gag point. Today I use middle range stuff on my personal bikes but my definition of middle range keeps skewing toward the lower end. A few years ago I was pricing out some part and the Ultegra price was double 105. Dura Ace cost was double Ultegra.
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My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.
Last edited by Retro Grouch; 11-11-16 at 11:21 AM.