I recognize the march of technology and appreciate that component (and frame) manufacturers are constantly striving to improve their products' performance. Having just recently moved from Record 10 to SR-11, I was however disappointed to discover that the new upgrade (the so-called, "Revolution 11+") is not retro-compatible with older 11 speed parts. According to a July 18 report on Velo News, "Previous 11-speed mechanical shift levers and front and rear derailleurs are not compatible with Revolution 11+ shift levers, front and rear derailleur, even though both are 11-speed." Full report here: http://velonews.competitor.com/2014/07/ ... 0FFH3Ot.99
Any idea on how long "old" SR and Record 11 speed component replacement parts will be available? Thoughts on the evident total obsolescence of the pre-Revolution(ary) drive train?