Hi guys looking for some advice, I'm currently on a low carb diet for 1 month trying to loose a few pounds for a 50k ride next month, going all out riding and running. 2 weeks in and my average speeds are consistent and times running getting faster but i do feel weak. My question is how long do i need to give myself to get some carbs back in for the 50k ride? Are we talking days? weeks? I don't think, as I feel atm, I could do any good in my 50k ride. Its not a race but I'm looking at beating my time from last years ride.