This year we used Perpetuem by Hammer. You put in the amount of powder going by body weight and how long the ride is by the hour. I use it for any ride that will be over a two hours. I put in the powder for up to 4 hours then bring more in a baggie to replenish for a century ride. You don't chug it like water or gatorade. You take a swig every 15 minutes for long rides followed by water or for me water with some gatorade in it. It replaces carbs & protein.

We also take Hammer Endurolytes capsales for electrolyte replacement. I still eat at the rest stops but both my husband & myself found a huge difference in our legs by using this.