Pete,
The 70-SP spindle is 111mm symetric. As far as I can tell,
it's the same spindle as the 109mm Pista spindle with an extra
1mm on each end. So it would shift the chainline 1mm to the
right as compared to the 109mm spindle. For all intents and
purposes, this 111mm spindle is identical to the old Chorus
road spindle. (Unless it's intended for thin wall cups, in
which case it's essentially the same as the Athena spindle.)
Spindles meant for a thick walled Italian BB have a
shoulder-to-shoulder length of 51 to 52mm, while the spindles
meant for a thin walled Italian BB would have a
shoulder-to-shoulder distance of 56 to 57mm. (I think the
"offical" values are something like 51.5 and 56.5mm but I've
found variations from spindle to spindle.)
The 113mm road spindle is asymetrical. When compared to
the 109mm spindle, it has 4mm of extra length on the drive
side. I actually think the 111mm symetrical spindle will work
just fine but the critical issue is whether you're using thin
wall or thick wall cups and for which type the spindle is
intended. By the way, in my experience, a Campy spindle meant
for thin-walled cups should work perfectly with Stronglight
cups. I've still got an '84 Peugeot on hand as proof.
If you want to drive up to Arlington, you can examine my
spindle collection to take reference measurements. Also, I
have half the crank puller you need. (It's a long story...)
Good luck,
Fred Rednor - Arlington, Virginia
> I'm preparing to put period-correct Campy pista cranks back
> on my '63 Frejus track bike (currently has Stronglight).
> According to my measurements, I need a Campy 70-P-120
> bottom
> bracket spindle. I see a "70-SP" (with no 3-digit suffix)
> spindle on eBay. It has an overall lenght of 111mm (which
> happens to be half way between the overall lengths of the
> 70-P-120 (109mm long) and the 70-S-120 (113mm long). What
> is this 70-SP? I don't see it listed in a 1972 Campy
> catalog.
>
> Is it a later compromise spindle that is considered good
> for both road (strada) and track (pista) bikes? Will this
> do the job for me?