I've found frames from the 70's tend to be better for conversions generally, i.e. more clearance for wider tyres and mudguards.
Look for something with crimped inner chainstays and flat crown forks work quite well.
Then you just need to get 4 canti bosses welded and you could get it re spaced at 130mm if the number of speeds bothers you.
That’s lovely.
Here’s mine. My original plan was to get some canti bosses brazed as well but haven’t done that yet.
Only downside is the French bottom bracket which doesn’t give me a wide choice of chainsets but I can live with that.
I've found frames from the 70's tend to be better for conversions generally, i.e. more clearance for wider tyres and mudguards.
Look for something with crimped inner chainstays and flat crown forks work quite well.
Then you just need to get 4 canti bosses welded and you could get it re spaced at 130mm if the number of speeds bothers you.