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Old 09-07-07, 04:30 PM
Retro Grouch 
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Join Date: Feb 2004
Location: St Peters, Missouri
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Bikes: Catrike 559 I own some others but they don't get ridden very much.

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Originally Posted by Zumba View Post
Internal gearing has to take over first.

Rohloffs have been around for a long time and they're still not popular.
Derailleurs and chain drive are so wonderfully mechanically efficient that they set the bar real high. Whatever is going to supplant them (and I have no doubt that will happen someday) is going to have to be very mechanically efficient even during it's early development.
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