A bit of a silly question but how much water should I take for my audax (50km to get there followed by 110km and 20km to the train station after). I have one bottle cage with a 1l bottle. My frame is small (50) so I cannot really fit another bottle cage on. How much water do I need to take and how should I carry it? The audax is mostly rural and I think there is only 1 or 2 points where I can buy some water. I have those energy source sachets- sports drink mix- very pleasant taste-citrus.