20" front/26" rear is a reasonable configuration because it allows for standard gearing without relying on a Roloff hub or other special gearing and it lowers the chainwheel height (I'm referring to short-wheel base here.) 26"/26" is fine if you're at least 6-foot tall and you're comfortable with a high center of gravity. I've never understood why 16" wheels should appeal to anyone over 10 years old.
Okay, so I'm biased. Deal with it.
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Last edited by bentrox!; 10-16-02 at 10:09 PM.