There's some coverage from Wired here.
To be honest, I can't see why. Steel is heavy, and brittle - it can't stand up to the punishment that a well built aluminium or carbon fibre frame.
My Cannondale F700 has covered over 40,000 tough, abusive miles in the 6 years I've owned it. The CAAD3 frame has put up with a lot of abuse, but apart from the usual scratches and marks it's absolutely fine.
Check out this excellent frame stress test: http://www.sheldonbrown.com/rinard/EFBe/frame_fatigue_test.htm Some very interesting reading there.
For mountain bikes, steel just doesn't give you the confidence and handling that aluminium does. I've yet to try a new Cannondale carbon fibre frame (my local shop recently stopped being a Cannondale dealer) but I'm eager to give them a go, even if I don't want to part with my trusty F700.
Any racing bike riders care to weigh in with comments on the viability of steel frames?
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