I’m in training for a long (c. 200 miles) endurance climbing event (c. 30,000ft elevation gain at endurance pace) that will take around 21-22 hours to complete. This insane challenge entails riding a series of 15 minute laps on the same hill (around 11 minutes up and 3 minutes down) . According to my power meter, I’m expending around 440 calories per hour. I’ve been doing long training rides, doing lots of slow hill reps at IF 0.65, which is my target intensity.
I’m still working on developing a nutritional strategy but am not sure whether I should be prioritising calorie intake over carb intake or vice versa. Currently, I’m trialling Tailwind and like the light, clean taste.
If I take on board the necessary calories per hour (c. 440) from either food or drink (or a combination of both), my carb intake feels too high and I feel full up and my appetite diminishes. If I concentrate on taking on adequate carbs (60g - 70g per hour), I don’t match my expended energy/cals.
For an endurance paced ride of this length, should I be concentrating on replacing calories or carbs? Or is there a sweet spot between the two that I’ve not yet discovered?