The durable stamped aluminium Zee Cage II is compatible with SWAT solutions for tool & storage integration & features a unique side-loading design allowing riders to easily manage bottles when space on the frame is limited.> SWAT technology design allows for storage & tool integration> Side-loading design allows for secure bottle retention with easy in/out accessibility for frames with a compact bottle mounting area> Right-hand loading on the downtube; left-hand loading on the seat tube> Maximum versatility: compatible with all derailleur mounts/clamps> Accepts EMT Cage Mount tool> Accepts MTB XC Kit Storage Box (only on applicable Epic & Stumpjumper HT models)