Micro SHIFT Sword Rear Derailleur You Have My Sword, and You Have My Bow, and My Axe You shall be the fellowship of the bike. The Micro SHIFT Sword Rear Derailleur features a modern and innovative design with elegant mechanical operation. The medium cage is designed to be used with a single chainring and an 11-48t cassette, giving you a wide range and excellent climbing gears. The long cage is designed to be used with a double chainring and an 11-38T cassette. The cage is replaceable and can even be switched to the 2x cage easily. It features a silent clutch with instant engagement and integrated switch, Igus bushings for added stiffness, and an orbital barrel adjuster that reduces housing bends for less cable friction. Features Compatible with 10-speed Sword and Advent X shifters Silent clutch with instant engagement and integrated switch Igus bushings for added stiffness Orbital barrel adjuster reduces housing bends for less cable friction Max cog (Long Cage): 34 - 38TMax cog (Medium Cage):42T - 48TWeight: 308g (M), 329g (L) | Microshift | Sword Rear Derailleur 10 Speed, Long Cage