Well now, this is embarrassing. I just checked my bike again, and this time I checked both wheels.
Only the front wheel is a steel Rigida. The rear wheel is UKAI alloy.
Tells you how much time I've spent on it since pulling it out of the box.
Oh well. And here I thought this story was all locked down.
Now I have to fight the urge to find an original front.
Or maybe I'll just sell it and go looking for the blue 1975 S10-S that I really wanted.
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WTB: Slingshot bicycle promotional documents (catalog, pamphlets, etc).
WTB: American Cycling May, Jul, Aug, Oct, 1966.
WTB: Bicycle Guide issues 1984 (any); Dec 1985; Apr 1994; May, Jun 1996; May 1997.
WTB: bicyclist May, Dec 1997: Jun-Dec 1998.
WTB: Bike World issue Jun 1974.
WTB: Litespeed head badge (circa 2000)