I find the 1 liter / hr recommended amount way too much. I am 120 lbs body weight and my max water consumption on a 6 hour ride (with only few minutes of pee stops) is only 2.5 liters on the hottest days where it reaches 100F at sea level. If I bring more water, I'll have a bit of leftover and the added weight is probably adding to the effort during long climbs. I don't need to drink much and I feel perfectly fine as long as I fueled and replaced my electrolytes adequately and I always bring more than enough fuel and electrolytes on rides I often have leftover fuel at the end of the ride.
I start the rides early, not later than 6am in the morning and goes up to the mountains where temperatures are lower but can still see 90F heat index on the mountains in the summer due to high humidity.
I think bringing 6 liters of water would make the long climbs a lot harder on a hot summer weather. We don't have free water dispensers along the roads to refill the bottles so I have to bring all the needed water on the ride.
I start the rides early, not later than 6am in the morning and goes up to the mountains where temperatures are lower but can still see 90F heat index on the mountains in the summer due to high humidity.
I think bringing 6 liters of water would make the long climbs a lot harder on a hot summer weather. We don't have free water dispensers along the roads to refill the bottles so I have to bring all the needed water on the ride.
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