Well that is the first time I`ve ever felt that and it was horrible. First thing is I need to do more long rides and condition my body to get used to them and secondly I need to suss out food for a longer ride if not stopping at cafe`s etc. Tried a couple of gels and they did squat for me. Watched my heart rate drop on the bike and after looking at the traces on strava can see the point at which I felt like crap. So what do you folks eat on the bike ? I must say I was going hard so didn`t help myself and would probably have lasted the 60 odd miles nae bother if slowing it down a tad.