Nuevo record RD require less cable pull than The Modern Slant Panto, so your Down tube lever barrel diameter can Be smaller
I use <C> friction bar end shifters on my Old Rally , but SunTour ratchet Bar end with the Newer Euclid..
GS Downtube levers used to have a Housing Stop to run housed cable the rest of the way Back..
But FB knows more Campag Minutiae than I..
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