The alloy 3-arm Gran Sport cranks look like this:
http://www.wooljersey.com/
I can't see much difference in finish compared to the Record crankarms. Only the scooped out (what is the right term here?) portions, or rather the edges of them, are different.
The later 5-arm Gran Sport cranks are different though, and are indeed rougher all over.
Freek Faro Rotterdam Netherlands
2007/1/7, r cielec <teaat4p@yahoo.com>:
>
> Thank you, Everyone:
>
> I hope I can recall accurately to reply to everyone's comments.
>
> To paraphrase a CR Lister "not as elegant" - this would reflect the sense
> behind my comment that the GS is a "crude piece o' work" for Campag. GS has
> more unpolished nooks & crannies, profile more squared than rounded. Not bad
> looking at all but, lacking that Campag "bling". (May I say "bling" ? Is
> that Out of Timeline ? : ) ) Actually, the crank I have is in pretty nice
> condition.
>
> Concerning chain ring bolts - I don't know the size. Crank I have does not
> appear to ever have been disassemble (chain ring bolt heads not rounded; no
> wear tracks indicating chain ring bolt heads had rotational contact against
> the ring). Apparently, two different chain ring bolts sizes are used. An
> inboard located hex. bolt & hex nut secures the large ring to the spider.
> Several mm's above that hex nut & hex. bolt, is a slightly smaller chain
> ring bolt that secures the small chain ring to the larger. Yes, a typical
> chain ring spacer is sandwhiched between the rings. This smaller chain ring
> bolt consists of a hex. bolt and a typical chain ring nut (slotted barrel).
> The larger chain ring hex. bolt & hex. nut measure11mm across flats and,
> the smaller chain ring bolt accepts a 10mm socket.
> Incidentally, the hex. bolts mate flat against the chain ring; that is:
> chain ring is not recessed to nest the hex. bolt heads. I do not know if
> the hex. nut for the larger chain ring bolt is a standard hex. nut or some
> type of special design "hex. head barrel" vis-a-vis standard chain ring nut.
> Yes, these thousand words could have been summed by a picture.
>
> Thanks again.
>
> Richard Cielec
> Chicago, Illinois; U.S.A.
>
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