Wheels Manufacturing replacement derailleur hangers are CNC machined right here in the US with high quality materials that meet or exceed OEM Specs. Features: Machined aluminum replacement derailleur hangers to fit a wide variety of frames Replacement part for Cannondale #KP419 & K33049 Made in USA Compatibility: Beast of the East (w/ DT M12x1 TA) (2016-2017) SuperX Series (w/ DT M12x1 TA) (2017-2018) Synapse Carbon Disc (w/ DT M12x1 TA) (2018-2019) Synapse Hi-Mod Disc (w/ DT M12x1 TA) (2018-2019) Synapse NEO Al (2019) Topstone (2019)