do you have 1 or 2 bottle cages?? if 2 you can have 1 of each if not then you can have water in the bottle and a bottle in your jersey or just stop off and you can fill your bike bottle when you've drunk all the water....many permetations but I wouldn't personally go with the can option!!
yes 70-85 miles is always the worse point for me too Daz, especially hitting the top of cote du Coursegoules in the South of France in the blazing sun with still 50km to go
