Does anyone know exactly when Specialites TA had released their "Tevano" crank sets. Those were the Campagnolo clones with 144 BCD. I'm guessing it was mid to late 1970s. And as far as I know all large (outer) chainrings had cut-out like Super Record. Would love to know the accurate date for those.
BOB HANSON, ALBUQUERQUE, NEW MEXICO, USA
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