Hmmm, lots of research to do.
It's fairly clear that the 3 arm cranks are the best looking, but they're 116 BCD so 36 cog minimum.
Lots of people do 50.4 BCD cranks and they allow a 26 cog which I could get new easily (Veloduo), but they're not as cute.
Williams C34 is 88.9 BCD (3.5") and according to Classic Lightweights they support 32-60 cogs:
https://www.classiclightweights.co.u...dentification/
So cunning plan:
.
Look for a nice 116 BCD 3 arm in 170mm with 52/36 (My 'modern' bike has Stronglight 49D + TA 52/36).
Look for some cheap C34 rings to try 52/34 or 52/32 (currently using 48/32)
Keep an eye out for a cheap 50.4 5 arm if an 18 or 20 gap works
.
Other makes of 50.4 cottered cranks I've discovered:
.
Weinmann (alloy)
Groene Leeuw
Durax
.
The nicest look I've seen so far is the Durax Super Course, but it also looks a lot like the Stronglight 55/54
It seems to me it's the Simplex chainrings that make it look good.
But there's an issue with that: Velobase says they're only availabkle in 44 - 52:
https://velobase.com/ViewComponent.a...m=122&AbsPos=3
On the other hand Simplex Touriste 50.4 rings look good:
https://velobase.com/ViewComponent.a...m=122&AbsPos=4
Looks like my 3 arm isn't going to have the Simplex rings
So what's the cutest 3 arm 116 BCD 170mm with 52/36 rings available ?