The new Eagle� Grip Shift includes new, robust internals that make it even more durable and its shifting performance more precise Eagle� technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents Compatible with all levels of Eagle drivetrain systems Right 12sp 1 to 1 BlackUPC/EAN/GTIN: 710845804960