Hi,

I have what I believe to be a 1978 Motebecane Mirage. I had taken apart the bottom bracket to grease the bearings. When I reinstalled it, there are a couple of threads showing on the piece that holds the bearing in which are not covered by the outer "ring". I can't remember if this was the case before(i.e. the outer rng was flush with bearing holder). It is not the threads as if i remove the bearings I can fully thread the piece in.

Any ideas? It is a Sakae crank assembly.

Thank you