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Vermonter
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228 Posts
Discussion Starter · #1 ·
Maybe I'm missing something obvious but I've never understood why, when installing a new chain, the connecting link must be installed on the NDS. Logic tells me that there's no left or right side to a chain, so why can't the connecting pin be installed on the DS?
 

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So. Calif.
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2,800 Posts
Are you referring to the pin?
My experience with the 11sp chains and pins is that the pin must be inserted from "behind" the chain, when you are looking at the drive side.
Is this what you mean by "link must be installed on the NDS" ?

The reason to insert pin into chain from NDS seems to be:

The "outer" portion of pin that protrudes is snapped off and protrudes farther than the "inner" portion. Furthermore, on 11sp chains the outer portion must be "peened" to expand it into a small mushroom cap shape.

If this protruding portion of pin were to the "inside", it would likely rub or get snagged on the larger cogs to the inside.

If the pin's protruding end is to the "outside", the pin cannot rub on the smaller cogs.
 
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