On my street machine I have the std double bottle cage that fits behind the seat. But I was told many years ago by a swimming coach, that I'm double jointed, whatever that means. Anyway, whilst riding, I can bend my arm round, retrieve the bottle, that magically appears upside down, "drink, hail!" Then replace said bottle , right way up, all without so much as a wobble, even managed whilst in racing mode a few weeks back.