The Gorilla XT Rear Carrier Cage prevents bottles launching under extreme conditions including mountain biking and rough road surfaces. It has 2 times the grip of the Gorilla Cage, with tall gripping sides for a huge 14lb of grip on bottles. The stiff top lip helps retain bottles, flared entry makes for fast insertion, and the thick shelf means it can accommodate large bottles. For a versatile, strong and durable rear carrier cage, look no further.