microSHIFT Sword BLK Front Derailleur - 9-Speed Double 46-52t Max Ring 34.9mm Band Clamp 28.6 31.8 AdaptersmicroSHIFT Sword Black Front Derailleur 9 Speed Double 46 52t Max Ring 34. 9mm Band Clamp with 28. 6 and 31. 8 Adapters. The Sword Black front derailleur is designed for a 9 speed chain width and a wide range chainring. If you set it up with a full housing run it features the same easy cable tension adjustment as the original Sword group. Compatible with wide spec 47mm chainline cranks only Minimum 46t outer chainring Max 52t outer chainring Aluminum