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Mar 12, 2020 at 3:39 comment added Nathan Knutson @Zeus That is really astute, thanks for pointing that out.
Mar 12, 2020 at 0:11 comment added Zeus @EdRandall, the inner link may be pulling, but by the Newton's 3rd law the next link is pulling equally hard on it in the opposite direction. I strongly suspect this all is a fallacy. However, there is a difference when the pin (or rather its roller) is engaged on a tooth. With the suggested connection (A), it is the whole inner link that transfers the force. With (B), the force is transferred via the pin to the outer link, which is less desirable if the connection is not perfect.
Mar 9, 2020 at 1:44 comment added Daniel R Hicks @EdRandall - All links pull equally.
Mar 8, 2020 at 10:33 vote accept Ed Randall
Mar 8, 2020 at 10:33 comment added Ed Randall OK. So at the join, the inner link is doing the pulling when pressure is applied on the pedals. Thanks!
Mar 8, 2020 at 9:17 history answered Nathan Knutson CC BY-SA 4.0