KP>  I've heard debates on this subject between the Dallas Bicycle 
 KP> Coordinator and engineers.  The engineers say that the detectors 
 KP> work only on ferrous materials and thus cannot detect aluminum, 
 KP> carbon fiber, or titanium.  But even on bikes with frames made of 
 KP> such materials there usually are still small amounts of steel in the 
 KP> components which _may_ be detected the detector is sensitive enough.
My Cannondale (aluminum, of course) does not activate the sensors.
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 * Freddie 1.2.5 * ... FLASH!  Energizer Bunny arrested!  Charged with 
Battery!
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