Is this a race or just a ride? If it's not for competition, then don't be racing others. You'll need more water. I put a drink mix in my bottles that is basically all carbohydrate. Depending on the ride, 180 to 220 Calories (kilocalories) per bottle. On 100km rides I'm never hungry. Usually organized events have food and drink stops, but you haven't told us which event you are participating in.
Last edited by Iride01; 11-15-21 at 10:09 AM.