I know i need tools , tubes, and all that stuff but do i need to bring food and my camelback or am i using waterbottles. I also have never ridden in anything in the back jersey pockets as i only do mountain biking and have a camelback, but want to try a century. So i am worrieed that since i am not used to carrying stuff there, i should just bring my camelback. What do you guys think??