If you look at some mid 50s catalogues and search for 8 speed bicycles those rod actuated front changers normally used 46/49 3/32" chain rings combined with a 4-speed rear (which would have been 3/32" as well). For example the 1955 Dawes Emblem 8 specifically mentions a 3/32" chain is fitted! Same for the 1956 Lenton Grand Prix, also an 8-speed with 3/32" chain.
I would be tempted to use a 3/32" freewheel, maybe even a 5-speed.
Yes, I see what you mean. The thing is my Simplex Tour De France rear changer is marked for a 1/8" chain, so I assume it is set up and spaced for such, although of course some 50's style bodging could be in order to get it working with a 3/32"....
If you look at some mid 50s catalogues and search for 8 speed bicycles those rod actuated front changers normally used 46/49 3/32" chain rings combined with a 4-speed rear (which would have been 3/32" as well). For example the 1955 Dawes Emblem 8 specifically mentions a 3/32" chain is fitted! Same for the 1956 Lenton Grand Prix, also an 8-speed with 3/32" chain.
I would be tempted to use a 3/32" freewheel, maybe even a 5-speed.
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