Mine was included with my bike when I bought it. I didn't care so much about the aero properties as making it easier to drink while in the bars. I definitely drank more than one bottle between stations at the Honu so I think it was a good thing to have. I'm doing a sprint with it this weekend and am kind of looking forward to using it there too.
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Fredo, you're my older brother and I love you...but don't ever take sides, with anyone, against the family again...ever.