Where to begin.......... First off, if you are looking for a good way to hurt yourself, keep that bottle there. BEtter yet, add another to the other side!! For a number of reasons, this IS NOT a good idea in my mind. I would suggest you either get a seat mounted cage system or simply put them in the rear pockets of your cycling jersey. They are commonly kept there conveniently. If you don't use cycling jerseys, and simply judging from the looks here I am going to take a stab at strongly assuming you don't, get some.