I have searched and searched, but it doesn't seem to be much data/comparison on aerodynamics on road frames. We hear a lot about "more aerodynamic for 2013" "Hidden cables for better aerodynamics" "New seatclamp to reduce drag" etc, but I can't find any hard numbers. Note that I'm looking for frame alone. I saw some numbers comparing the new Madone to some other bikes, but that was complete bike speced, which kind of makes it useless.
Has anybody seen some data on this? How many watts difference are we talking about?
If there is a thread going on, please refer me and delete this.
Please use search
there is some data out there from Tour and from Velonews and then from manufacturers like trek, scott, cervelo and specialized; though the latter two don't really name the comparison bikes from other companies.
What you will note is that there is a fairly big range of how aero minded the companies are, from Trek where aero is a part of a total package, to the Cervelo S5 which uses much of the same tube shaping as the P5.
Velonews most recent test is here:
http://issuu.com/khcycle/docs/foil-velomag-2012" onclick="window.open(this.href);return false;
Velonews 2011 is here:
http://www.cervelo.com/r/velo_news_2011-04.pdf" onclick="window.open(this.href);return false;
But yeah, just search on google:"site:weightweenies.starbike.com aero test velonews tour" and you should get more than you'd ever want to read
The Tour Magazine tests seems to suggest that from best to worst you are looking at about 25 watts.
I myself noticed a decent change in speed with the same watts when i went from a non-aero steel tri bike to a Felt carbon bike. I was doing one of my workouts on the same stretch of road both before and after the change in bike; I also kept track of wind conditions and avg power and there was a noticeable change.
Thanks for the velonews and tour test, I had not seen those. Too bad its so few bikes in it though
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