Originally Posted by
abarth
Hey one man should not talk about other man's caliper like that.

T-mar, do you have any idea when M'becane switched their logo from the plastic pentagon head badge to the circle head badge? I am trying date mine. My guess is mid 60's to early 70's.
The round head badge was to commemorate their 50th anniversary, which was in 1973, but I think it didn't actually appear on bikes until 1974.