Quote:
Originally Posted by dannat
140mm discs should be fine on a roadie
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Hi Daniel, recent tests in Europe have shown serious flaws on some of these, and it had a lot to do with the small diameter. In addition the metal compound used in Shimano's Ice Tech rotors led to warped rotors. I'd advise againt them. I don't see the logic in putting smaller rotors on a roadie than on a MTB, considering the speeds are easily as high (or higher) than on your average MTB ride, especially where there are hills. Entirely avoidable compromise of safety for the sake of saving a few grams. I expect 140mm setups won't be the norm in the not too distant future, and a good rim brake will outperform them. Both my 160mm rotors overheated on a recent descent down to Kangaroo Valley, I was glad they weren't ANY smaller. And the brakes (Avid BB7) aren't even hydraulic.
Edit, it appears that the Cannondale you linked to at least has a 160mm front rotor. Better than nothing. And no, I wasn't riding the brakes as there were no cars in front.