all NR pista bbs I've seen have thin cups with no rifling.. spindles would be marked 'P' and overall length = 109mm
i believe SP spindles with shield logo would be C-record either strada or pista as you note.. overall length 111mm i think, but these came with alloy cups that used smaller bearings than the standard 1/4".. i cant recall the size offhand (7/32" probably ??) but not interchangeable with NR cups
not sure what you are noticing with the 'flanges but the differences between the NR and C-record races should be apparent when examined side by side
andrei padlowski gr, nj, usa
On Dec 14, 2007 2:24 AM, Sean Flores <seaneee175@gmail.com> wrote:
> Hello Group-
>
> I recently bought a 'lot' on ebay of campy BB spindles. There were a
> couple of road and one pista. I was after the pista. But one thing I
> noticed was that the 'flanges' on the pista spindle were thicker and
> a bit taller.
>
> So my question is, were their differences in the actual cups between
> strada and pista? Or was it a bearing size issue. I also receive one
> spindle that was marked SP (strada/pista) which I was assuming was c-
> record. So I'm guess with old cup and spindle c-recs, the cups were
> the same with both of these.
>
> Can someone please give me a breakdown on the differences between
> older campy cups. Pista/Strada, thick wall, thin wall, rifling, etc.
>
> Thanks in advance.
>
> Sean Flores
> San Francisco, CA