• Someone here please suggest the right product to use (not WD-40, it will evaporate... lamping oil? plain normal bike chain oil?)

    JP Weigle Framesaver is the official solution, although I understand that this is not much more than linseed oil in an aerosol can
    If you want a budget DIY solution get a pot of linseed oil, thin it with Turps and slosh it about inside the frame.

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