The correct answer would be, the estimated amount of fluid that you should drink during a 2 hour bike ride is 36-72 ounces.
Explanation:
When you are riding a bike for as long as two hours, your body is consuming your energy which can make you feel low. You may also sweat during the ride which would likely to lower down your energy levels. You would feel dehydrated.
And in this scenario, you need to get yourself hydrated throughout the ride. So you need to drink an estimated amount of fluid which would be about 36 to 72 ounces, which is equivalent to more than 1 liters to more than 2 liters.
Learn more about water percentage in human body at:
