Tom3 wrote:
Quote:
Hydration - bottle on frame (aero or regular) & bottle cage horizontally between aerobars.
I remember Mark Cote posting on here that the SPecialized Virtue bottle neither helps nor hinders the aerodynamics of the Shiv frame (pretty much lost in the noise). BUT do you know if there is an aero penalty to running a regular bottle on the frame and how much?
I already plan on one on the bars, but I like to carry 2 and I am trying to figure out the best place for the second bottle (beside the frame the other option is tucked up tight to the seat ala Chris Leito).
I also remember him posting that poorly placed water bottles can cost up to 7 watts....
Thanks.
Yes, there is an aero penalty. Exactly how much depends on yaw angle. And bottle size. And probably even the cage itself. However, if you need two bottles, I would indeed put the other one in the "normal" spot. Up under the seat has NEVER been reliable in my experience. If you feel you need two bottles, then just accept the fact that there is not an optimal way to carry that much fluid. Of course, no amount of aeroness overcomes bonking, running out of fluids, etc. I venture that I'll run two normal cages in Abu Dhabi this year, just because last year the aid stations were often tricky because of the size of the group of riders.
However, if you simply "like" to have two bottles, then I'd suggest a regular cage between the bars and the virtue bottle on the frame. Most races are more than well supported enough for that to be a good option.
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