Bottle Fidlock Twist 600ml W/ Bike Base - TransparentBottle Fidlock Twist 600ml W Bike Base Transparent 600 ml bottle for cageless magnetic mechanical mounting system With the magnet mechanical bottle holder system, the TWIST bottle 600 revolutionised the bicycle bottle. The overmoulding, which has now been improved even further, enables an ultrasecure connection between the bottle and the bike without the need for a gravity kit! With the new design of the TWIST bottle 600 comes not only a new print.