On a 50-60 mile ride, I use water on th ride. Half a bottle of G-Ade at the rest stop (cycling bottle). Then back on water.
On hot days, I will drink a full bottle at the rest stop. On a century with 10,000ft, I will drink one to one while riding. But at some point, my tummy will not want to take any more, so it's water after that.
I buy G-Ade at Smart&Final, big tub for $10 (powder). I have buds that have high end sports drinks. Seems like a waste IMO. They are always showing off some new proiduct, $50 a container!
....But usually after 30 miles, they are out of energy. I think it's more fitness level than anything.
One guy begged me to try his $50 tablets. Replaced electrolytes and cleaned your bottle at the same time!
..........I tried it and 15 minutes later, I was craving Gatorade!