gatovolador wrote:
Tom A. wrote:
Further, the rest of my point was that if one isn't necessarily a sprinter, then they aren't going to want races to come down to field sprints. This means not sitting in the whole time, but attacking, trying to form breaks, bridging to breaks, etc....which in ALL cases a more aero bike will be an advantage.
This is correct. However, I think we can all agree that the 5W (generously) saved according to Gerard and the recent TOUR test gained from an aero road frame are the least W/$ to be gained.
Although Tour tested with a dummy aboard (as opposed to VN's bare bike testing)...the lack of cabling really makes me not put a whole lot of stock in their results. A good part of the advantage of an aero designed road bike is from the more hidden cabling. Look at the difference in performance at zero yaw between the Cannondale used in the the Tour test as a "control" and the "control bike" used in the VN testing (revealed to have been a Masi Evoluzione - a fairly "generic" modern carbon road bike - see pic below) as compared to the aero road bikes. Something's not right with the Tour testing in that regard...plus, they only give drag for one direction of yaw, while the recent Cervelo test report with the Zabriskie dummy reveals a distinct difference in the drag with the wind coming from either side...
gatovolador wrote:
For the very small percentage of people who have optimized everything and have unlimited funds, sure.
For the rest of us, a lazer helmet w/ aeroshell, a skinsuit, cleanly attached race rumber, shoe covers, power meter, aero wheels and a coach are a far better investment. Moreover, the sum cost of these is over 2 years is less than an aero frame. OK...check on the helmet (I actually just tape the front 1/3 of my helmet)...check on the skinsuit...check on the number (glued)...check on the shoe covers....check on the power meter (Quarq CinQo)...check on the aero wheels (Hed Jet 90s)...check on the coach.
Does that mean that only NOW I can consider an aero frame for my bike? If I'd taken that approach 9 years ago, I never would've bought my aluminum Soloist. I was going to purchase a frame anyway...why not make it an aero one?
Think of it this way...an S-Works Tarmac SL3 frame module is only $800 less than the S-Works Venge, which is arguably a faster bike. That's actually a fairly good incremental cost if the claimed 20W at 40kph difference between them is true.
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