I'm building up an old 1986 Cannondale SR400 frame and I'm almost finished except for the front derailleur. It looks like I need some type of mount that goes between the bolts on the frame and the derailleur. Does anyone know what this is called and where I might get one? If it's too much of a hassle, would it make sense to buy a clamp adapter and attempt to get that to work? If I remove the bolts from the frame it looks like I might be able to get a clamp attached.
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