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I am using machine with a Cyclo Standard 3 speed 1/8" chain combined with 3/32" T.A. Cyclotouriste chainrings (46/32) at the front. The front changer is modern and intended for 3/32" chain. It is cable operated, but I doubt whether this makes any difference.
I did not expect this to work very well, but I thought I'd try it to see what happened - it works almost perfectly, making the bike a pleasure to use - I'll try to find a picture to post here soon.
A very long time ago, as a teenager, I had a Benelux rod changer which I used because it was all I had. Although I would rather have had Campag, I never remember the Benelux giving trouble. It only had to cope with 48/52 rings, but as we know in those days a three tooth difference was the norm.
As mentioned above the Simplex rod changer I used recently worked perfectly on a three tooth difference, but it was a bit awkward to reach and was more difficult to adjust than a modern changer. It was necessary to move the frame pump from the normal (for me anyway) position at the front of the seat tube. I don't know the exact weight, but it seemed quite heavy since it is all steel.
So, my experience is that almost anything will work on the chainrings.
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clubman
Quick question. HAs anyone here ever used a rod front changer like one of these?
http://www.classiclightweights.co.uk/components/changers-mark-comp.html
http://www.classiclightweights.co.uk/components/clangers-comp.html
I'm thinking of using one with a double chainring at the front and a Simplex Tour de France 4speed for 1/8th chain at the rear on my Carlton restoration. But i'm unsure if I will be able to shift the front double chainring (which will presumably be 3/32) with one of these if using a 1/8th chain as required by the rear gearing? I know there pretty simple in design so my instinct tells me it may work, but thought someone here may know more?
Anyone?