6 hours running in heat? Abit different to guzzling 3lts of water in 2 hours spinning a bike round a trail center. After all a bike is a very efficient mode of transport.
Sorry, I was unclear. This was on an MTB. But still pretty intense.
My point, badly made, was that if in testing conditions my thirst doesn’t compel me to drink much more than when sat at home, you’d have to be overriding your instincts on a massive scale to guzzle 3 litres in 2 hours of gentle riding.
But on reflection I’m not quite sure why I’m even making this point.
Still dehydrated from yesterday maybe…