I did not do any CFD testing on the other bikes so I'm not sure how the wheel and downtube interact when they are close. We did do some physical bike wind tunnel testing up front to set some bench marks.

I had target numbers we were looking for in CFD on the front end - when the original design with a few tweeks kept getting closer to what we wanted - we just kept going in that direction. Most of that work on the Tactical was with the bar, stem, fork and how they worked together.

I wish I could see numbers on the P5X. The shoot out just goes to show there are many ways to get to low numbers. Really interesting

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Dan Kennison

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