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What's going on here..?

Old 11-22-21, 02:50 PM
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arex
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What's going on here..?

Came across this photo on Facebook, in a non-English classic bike group. The auto-translate didn't really explain anything.

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Old 11-22-21, 02:56 PM
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I've seen pics of these chains before. I think the outside pins would drive more cogs for other mechanical applications. I'm sure our C&V engineering squad will know.
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Old 11-22-21, 09:00 PM
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Old 11-22-21, 10:19 PM
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At least it's a drive side photo.
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Old 11-23-21, 03:33 AM
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That's one of the first chains IIRC. Like 1890 or so.
It was one of the few "options" that were there for bikes, but in the end this design didn't "win" and we got the chain and cogs like we currently have.

https://alchetron.com/cdn/choppy-war...esize-750.jpeg

hope this helps.


edit:

https://www.cyclist.co.uk/news/7671/...up-for-auction
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