The 100% FACT carbon fiber S-Works Carbon Zee Cage II is compatible with SWAT� solutions for tool and storage integration. It also features a unique right-side loading design that allows you to easily manage bottles when space on the frame is limited, or for when you're down in the drops. Accepts MTB SWAT� Box (when used on compatible frames). Accepts SWAT� Cage Mount MTB Tool. FACT carbon construction creates a splendid fusion of strength and light overall weight. Right-hand loading on the down tube�left-hand loading on the seat tube. SWAT� design allows for storage and tool integration. Side-load design for easy in-and-out accessibility for frames with compact bottle mounting area. Weight: 28g