how very strange. i have two sets
of black dura ace hubs; one is marked Z I and
the other Y F. as far as i'm aware the black
components were only made early on.
yr obdt svt
>Note the Shimano date codes page at the CR site:
>Z and J first generation?....Not according to the codes, way later.
>Hotaka, Japan (what a mother of a typhoon that just visited here)