Licensed Bike Geek
Join Date: Oct 2002
Location: Los Barriles, Baja Sur, Mexico
Bikes: Kirk Terraplane, Serotta Ottrott, Spectrum Super Custom, Hampsten Carbon Leger Tournesol
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Of course you are correct in an absolute sense, but in a practical sense, well it doesn't make any. To do what you want, maintain a straight chainline with your triple, you would be changing gears much more frequently. With more frequent gear changes come all the assorted wear and tear on cables, shifters and the rest of the drive-train. And that's assuming perfect shifts are made at all times. I'm a triple user, lord knows I need the gears I can get in the hills that surround me, so I'm not an anti-triple guy. It seems to me to be an awful lot of work playing with your gear selection to, hopefully, save on maintenece issues.