microSHIFT Sword Black Rear Derailleur - 9-Speed Medium Cage Gray Compatible with Sword Black 1x Black. The Sword Black wide range 1x rear derailleur is compatible with both Sword and Sword Black shifters making it easy to upgrade or mix and match. With capacity for an 11-48t cassette this derailleur gives you the gear range you need to ride where you want.

Compatible with Sword and Sword Black shifters as well as Advent and Advent X

Compatible with 9 or 10-speed

Medium cage is crafted with durable steel

37t capacity