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AERODYNAMICS(3 posts)

AERODYNAMICSNEVILLE
Jun 19, 2001 5:07 AM
It seems to me that one can have an aerodynamic road frame ( down tube and seat tube ) made from Easton Ultra light and have aero wheels ( eg HED Alps ) without having the weight penalty that ruled out this option before for road bikes.
This option is not too expensive also.
What would be the gains and would they be worth the expense ?
re: AERODYNAMICSAkirasho
Jun 19, 2001 6:03 AM
... weight never actually ruled out an aerodynamic frame directly... but given the choice for a given venue, weight savings takes precedence over aerodynamics (such as relatively low velocity climbing stages of pro races)... On the other hand, as you've mentioned, we're bleeding edge with aero tube technology that brings the weight down to what a conventional road frame might been 3 years ago.

And, even with aero tubesets and aero wheels, remember that the rider produces the most aero drag... and improving your aero position (in general) provides more bang for the buck than any aero frame or wheelset.

That said, I know there are some aero specific sites (http://www.sheldonbrown.com/rinard/aero/index.htm) that will give more insight... As far as costs, I bought an aero Cervelo P2K (along with a couple trick aero wheelsets at extra cost) for about 2K... competitive with round tubed bikes with similar gruppos... (aero wheels "may" be competitively priced as well (HED)) The P2K is used primarily for relatively flat TT's and seem worth it to me.

Be the bike.
re: AERODYNAMICSgrz mnky
Jun 19, 2001 12:08 PM
One of the "drags" of going aero on the wheels is getting blown all over the country side in crosswinds. It's not the end of the world, but it is something to consider. Ride quality of the frame is very subjective and I won't begin to guess at what you like or want.

Ultimately it's all a series of trade offs and the engineering NFL priciple (No Free Lunch) applies - you just need to figure out your own priorities and then select the most attractive option. If there were one single universal answer for all riders and all situations then we'd all be riding it. There is some fun in the mental gymnastics so try to enjoy the choices.