Fidlock Twist 800 Replacement Bottle The Best Twist You should always carry a water bottle with you while you're riding so you can stay hydrated. If you have a Twist Base on your bike, you can always use a Fidlock Twist 800 Replacement Bottle. It has a leak-proof, self-sealing bottle cap with a high water flow valve and optional dirt cover. It features an improved squeeze due to a soft, BPA-free polyurethane. The Twist 800 is also dishwasher-safe and compatible with all Twist bases for bikes. Features Improved squeeze due to a soft, BPA-free polyurethane Leak-proof, self-sealing bottle cap with a high water flow valve and optional dirt cover Capacity: 800ml / 27. 05 fl oz | Fidlock | Twist 800 Replacement Bottle 800, Smoke | Polyurethane