wrote:

Getting a cyclocross bike for the city. I ride a Specialized 18" MTB.
Anyone care to guess approx cyclocross size?

A good starting point is to look for a bike that has a combined
effective (horizontal) top tube plus stem length of about 1-2cm
shorter than your MTB. If you're going to ride it "in anger"
off-road, you might want to go a cm shorter.

That's based on having your MTB set up for "all-around riding". If
you live for the downhill or trials-type riding, your MTB "cockpit"
may be a bit short to use as a comparison.

Mark Hickey
Habanero Cycles
http://www.habcycles.com
Home of the $695 ti frame

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