Check the listing for details. microSHIFT R9-B Double Front Derailleur - 9-Speed, Double, 46-52t Max, Band. Condition: New. Listed at 25.09 USD. microSHIFT R9 front derailleurs are precision manufactured to deliver predictable and smooth shifting. Optimized for use with 9-speed compatible road drivetrains.34.9mm band clamp with included adapter for 31.8mm seat tubes. Chainstay angle: 61-66°. Chain line: 43.5mm. Body is black anodized for added durability. Durable cold forged aluminum body provides strength and weight savings. Precision forged steel shifting plate for resistance to chain-rub. Stiff and strong hardware for reliable mounting. Item Specifications: Double or Triple, Double, Drivetrain Speeds, 9, Front Derailleur Clamp, 34.9 (1-3/8"), Front Derailleur Clamp, 31.8 (1-1/4"), Front Derailleur Cable Pull, Bottom Pull, Front Der/Shifter Compatibility, Road, Max Ring (teeth), 52, Front Derailleur Style, HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us