New to the forum and I've tried searching for this problem but it seems to be too specific.
My old Ciao SC has an unusual crankset (I hope it's called), the axle between the pedals. I've searched alot and found pictures and spares but it doesn't look at all the same as mine.
My axle is fastened in the frame by attaching the pedals. Around this axle is a "tube" and on this tube the chainring. Of course, when I turn the pedals, the chainring should spin too, but it doesn't?
Does anyone know what is missing and should lock the "tube" with the chainring and the axle with the pedals together?