Agreed, correct position is key. That's why I mentioned to the OP that there's no point slapping on aero bars the day of the race and that they need to spend some time riding in a low efficient position to get the body used to it. It's taken me about 6 months and about a 1000miles to get to a point we I am comfortable enough to ride 40 miles on the aero bars.Plus of course the correct position is important, a "praying mantis" style does very little to improve airflow, and the low position which needs careful practice to msximise benefit is the
only way to go. And if we really get into things, frictional losses increase with speed/cadence, plus the energy used in chain deflection causing energy use by heating said chain, etc., etc.......
Oi! Not just blokes!You can spend not a lot on doing tri but from what I've observed it's basically an excuse for middle-aged blokes to go shopping for loads of shiny toys across three different disciplines.
I can;t seem to find the text on the Blenhiem triathlon webpage