Last summer I built up an early 60s Paragon frame with period correct components. Paragon frames were made here in the Bay Area for a few years during the 1960s. I gently chased and faced the Nervex Professional BB without thinking of checking the width.
When I put the Stronglight BB in the adjustable cup was sticking out about 3mm too far. I checked the spindle length then the BB width. It was about 65mm wide so I did what we used to do back in the day. I put a 3mm wide Sturmey Archer spacer over the fixed cup and reassembled the BB.
I probably should have used a 1.5mm spacer on each side of the BB but I used a 1.5mm wide spacer behind the freewheel to correct the chainline.
We encountered the narrow BB problem frequently enough that we had an automatic fix. It was a good thing that I remembered that trick.
Chas. Colerich Oakland, CA USA
Steve Cortez wrote:
> Greetings list members,
>
> I have a new-to-me track bicycle that has a bottom bracket shell width
> of 65mm. A quick Googling reveals that this is a very uncommon size,
> but also that Campagnolo made a spindle for it: 65-P-120. I haven't
> measured the pitch of the threads.
>
> Can anyone tell me more about this bottom bracket size? The frame is
> an early 70s Eisentraut. I suppose this is also a Want to Buy post.
>
> Thank you.
>
> Steve Cortez
> Alameda, CA