XLAB’s Gorilla XT Carbon Cage is perfect for mountain bikes, rear-mounted carriers and other high-stress hydration situations. The XT has over 4 times the gripping force of conventional carbon cages thanks to its 6 carbon gripping fingers, its top and bottom retention tabs and thicker carbon construction. And, it’s still easy to slide your bottle out and grab a drink even when you’re pushing it to the limit. It boasts an amazing 14-pound grip force on bottles.