i would say that sounds about right . 90-93 - internal top tube cable routing is a clear give away ( to me ) . i have a couple other corsa extras 89,90 merckx and they have top tube cable routing NON internal . but my 93merckx has internal , was that the first year on internal cable routing of was it dependant on model ..
i really cant sleep until i pin this one . first time in a hile i cant pin the year .
bugging me
Cheers
T