i'm upgrading the stock fins of V2 mirage drives (ca. 2010) with new sets purchased this year (using roadrunner's recommended 1/8th" overlap with the fin top).
one drive is getting (red!) turbos. and everything is fine.
the other is getting STs and those
are problematic. the chain is just
interfering with the edge of the cut-out opening.
if you look at the holes the ones in the turbos are clearly wider. measuring from inside-to-inside confirms ... the turbos are 17mm wide, the STs are 12mm ... or half a cm different.
if you run the drive and look at it, the chain doesn't actually move relative to the fin (or if it does, it doesn't do much).
so my question is this ... it would be easy enough to take an X-acto and trim another 5mm off the fin ... but
if i do that am i damaging the underlying integrity?
alternatively, i could return it and ask for another (i'll bet you anything this was tooled out of spec by accident).
or i could just leave it.
thanks, in advance, as always.