I'm working on two mixtes with Swiss bottom brackets. A '79 Motobecane and '84 Peugeot. I'll be reusing the cups on both bikes. First, I'll be using single chainrings on both bikes so I want shorter axles. Even if I wanted to reuse the originals, the races are pitted.

I figured this would be straightforward as the info on the interwebs indicates all Swiss BBs are 68mm. But, when I compare the axles to the replacement axles my LBS has in stock and with the Superbe and Superbe Pro axles I have on hand, the distance between races is longer.

Where do I find replacement axles for these BBs? I'm looking for something in the 113mm neighborhood