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@Rik_Van_Looy
re: the Dawes.
The chainring has gouged a chunk of metal out of the (very thick walled) chainstay.
I assumed this was due to the BB being super loose.
When I tightened it I discovered that the BB shell is threadless to suit the Bayliss-Wiley oilbath BB
I regreased and tightened it but the problem persisted.
I tried a 3-pin Solida chainset but the chainstay strike was even worse.
inverted the BB and tried the chainset on the NDS to see if it was a bent frame (I've still not got round to an alignment check) - clash was exactly the same on the NDS.
When I inspected the BB axle I noticed it's not Bayliss Wiley but TDC. It's also symmetric.
I then had a quick hunt around my parts bin for another cottered BB axle.
I found a Claud Butler one from the 30s the same length as the TDC but the bearing surfaces are closer together. This is non-symmetric and the longer drive side put the chainring in the right position wrt the chainstay. Unfortunately, the assembled BB is too short so I've no threads to fit the lock-ring... this is all a bit annoying.
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