Until a few weeks this was not even a second thought, it was hot and dry and I'd readily drink my two bottles during a ride. Now that it is cooler out I feel less inclined while riding to drink. So my question is do you need to "force" yourself to drink when it is cooler? Even if you don't think you need the water, do really? Today I rode 22 miles and it was in the mid-thirthies, I drank less than 1/2 of one water bottle.