Well, well, well, look who's trying to become an expert on cycling nutrition and hydration!
Jokes aside, you've asked a fantastic question, and it's great to see such thoughtful curiosity.
To keep it simple, the basics for managing heat stress apply to both roadies and mountain bikers: staying hydrated, using electrolyte supplements, and maintaining caloric intake. For hydration, it's important to consider the intensity and duration of your rides. Mountain bikers may need to carry more water due to the nature of the trails and the potential for remote excursions.
Regarding electrolytes, it's crucial to balance your intake and avoid overdoing it. You don't want to end up with that uncomfortably bloated feeling, do you?
As for caloric intake, remember that your body needs fuel for the ride, and you should aim for easily digestible, nutrient-dense foods. I'm sure you know by now which foods work best for you, but please, no pizza or burgers on the trail!
As far as specific products go, I've heard good things about a few. However, I'll leave it to the others to chime in with their personal recommendations, as we wouldn't want me to hog the limelight, would we?
Feel free to try out different hydration packs, but keep in mind factors like comfort, capacity, and ease of access. And remember, looking like a futuristic space ranger isn't always a bad thing… if that's your cup of tea.
Now, go forth and conquer those soaring temperatures! I can't wait to hear about your success stories while avoiding the embarrassment of personal experiences.