Originally Posted by Diggy18
...I've been noticing that on my daily rides, I usually start to poop out after about 1 hour and 15 minutes. It's starting to get annoying.
Try slowing down a little. You probably don't get pooped out after 1 hour and 15 minutes of watching TV. That's because it's low effort. Somewhere in between there is a effort level that would enable you to ride longer. How much longer do you want to ride, anyway? If it's over 2 hours, there is good advice in some of the other posts regarding nutrition.
Tom