Lightest & stiffest adjustable rear carrier designed specifically for ISM PN 3.0, PN 3.1 and PN 4.0 saddles. GORILLA XT cages, offer a 14 lb grip on the bottle. FEATURES: Aerodynamic Location: Mounts to saddle, hiding in body’s draft. Highly Adjustable: Can adjust cage angle and cage height for a perfect custom position. Stable Design: Stiffest mount on market with stainless steel arms. Flared Cage Design: Makes inserting bottle easy. Highest Gripping Cage: Your choice of 10 or 14 lb (approx) carbon fiber cages to prevent bottle launches. Anti-Vibration: Locking hardware for safety and security Repair Storage Options: Compatible with AERO POUCH 300 bag or MULTI-STRIKE REPAIR HOLDER. SPECS: Includes: (1) XLAB Cage Mount (1) XLAB GORILLA XT Cage Hardware Color: Matte Black Weight: 170 grams incl hardware