Originally Posted by
reeko
I am worried about the trek 2100 and the carbon/aluminum glue, horror stories i heard. What are your thoughts?
If you search for horror stories, you'll find lots of worrying about bonded frames, but few first-hand reports of actual problems. My best road bike has a bonded frame and I'll keep riding it without worry. Could a carbon/aluminum joint possibly crack or separate someday? Sure, but the bike could break in a lot of other ways, too, many of them more likely.
Whichever bike you get, make sure it fits. The Trek and the Specialized appear to be a little bigger than the blue Cannondale. If the Trek and the Specialized both fit, I would personally go for the Trek. If they're too big, the Cannondale looks like it would be likely to fit.