Originally Posted by dbarnblatt@usa.
gr23932's original question was specifically about the use of 3 braze-on cable guides ABOVE the top tube - which are not present on his bike. This is a far more significant indicator than the paint ... whch was already seen on some of the bikes by the summer of 1978 and possibly earlier, anyway.
By the 1979 model year Motobecane was already using the 3 braze-on top tube guides on ALL of their bikes. - It does not make sense to me that they would remove them again briefly around 1980 ... produce this bike ... and then go back to using the braze-on top tube guides again.
So I'll still guess at 1977-78.