Taking a stab at it, the M-40 is a re-labeling of the G-40. The G-40 came out the later part of the 70s. The M-40 came out ?
Dennis Young Hotaka, Japan
> Anyone out there know the difference between the Mavic
> 40 rims. I have a set of G40s and a set of MA40s and
> I'm not clear on the difference or the timeline.
> Anyone out there know?
>
> Vicente O. Saraco, D.C.
> Brooklyn, N.Y.