Peugeot bottom bracket query

[iow tom]

Hi. I've picked up a Peugeot country 100 hybrid thing. The bottom bracket, even after servicing the bearings, cups and spindle, is clunking. I want to replace it for a sealed, Shimano squared tapered BB.
Trouble is, the shell width appears to be 70mm. As the bike isn't that old, I'd be surprised if it had french threads? I reckon it has bsa threads? The drive side is of course stuck at the moment with nothing to grip, so I won't know until I unscrew it which threads it actually has.
Provided it is bsa, should I go for a 68mm or 73mm BB?
If it turns out to be french, what are my options there?
Thanks

 

[juvela]

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prior to gradually going ISO Peugeot used some CH

good to keep that in mind as a possibility

cycle certainly "appears" late eno' that would expect it to be all ISO

~'83-'84 was the time when the big french makers began introducing ISO, in the early time some "mixed" cycles were produced which were part metric and part ISO


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