Bicycle rear derailleur hanger, bicycle hook, gear mech hanger, dropout replacement as Cannondale part number KF096 / Pilo D123. Compatible with a wide range of bikes. Check out the list below. The package will include 1 derailleur hanger and mounting screws. Please check compatibility with pictures provided. If the picture doesn't match, it won't work no matter what description says. Fits MBK frames: MBK various models. Fits Saracen frames: Saracen Zen. Saracen Mantra Pro models. Fits Go outdoors frames: Go outdoors Calibre Stich Hybrid models. Also fits some 2019 Polygon Path. If you have any questions don't hesitate to ask. See detailed close-up pictures and read description for more. Send me your offer! Fast and free shipping 3-5 business days (USPS). Feel free to send a message with any questions here or 858-251-78-87 All money earned will go towards Ukrainian charity funds.