See http://www2.trekbikes.com/Bikes/2007/mountain/69er.html.

Tom "Johnny Sunset" Sherman wrote:
Is the bigger front wheel to better roll over obstacles, or is it just a
demented fashion statement? Conversely, does the smaller rear wheel
provide any real advantage?
What is the deal with single-speed anyway?
Are there prudish Trek dealers out there who will not carry this bike
because the name, or dealers who would be afraid of offending their
customers? Is the "69er" name meant to appeal to the BMX crowd who buys
products such as the "Snafu Rim Job" tires?
Is the Waterloo, Wisconsin water supply contaminated with a parasite
that causes brain dysfunction?
Who exactly is the target market for this bike?

Cannondog made a 26/24 bike at one time.
Bill Boston built small front/large rear, much copied.

Target? PT Barnum observed the effect long ago.
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971