Wheels Manufacturing Derailleur Hanger 159 CNC Machined Fits some Cannondale check Wheels manufacturing website for fitment. Not responsible for fitment to your bike.
They have been put on almost everything now! I will give you everything you need to attach the flag onto your whip. (It is a mini hose clamp and a zip tie that you can?t see when mounted because I have a system on how to mount them).