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Have you measure the Q on the Pistard Air cranks? Presumably they're sensitive to chainring thickness, like the Campag cranks with hidden 5th bolt. Did they go together with the Arc ring painlessly, or was there shimming/grinding involved?
I'm slightly toying with the idea of getting Vision NS as they are 10mm narrower than my Zipps
gbj_tester-
Just about <140mm.
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We had to 3D print a spacer for the hidden bolt yep - the chainring is a bit thinner than a normal track ring. 138mm Q Factor when you ram the bolt down on the NDS, you really have to keep going as it's a tight fit
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Also interested to know about the Arc ring as my Fibrelyte (now dead) had an issue with the 5th bolt hole presumably a thickness related issue. I had to put a very thin spacer between it and the crank or else the bolt was not tight and the ring went wonky (technical term).
umop3pisdn
xavierdisley
neil-bah
I would love to find a set of the aero Suginos - we have original double Zipp aero shroud brakes but they're a) MASSIVE and b) not great with proper brake blocks