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I'm setting up a double crankset with a new front chainring which is ramped and pinned. How should I orient the outer front chainring with respect to the chain drop prevention pin? Should this line up with the crank arm, opposite the crank arm, etc?

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The pin should line up with the inside of the crankarm.

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Yep, the purpose of the pin is to prevent the chain from becoming wedged between the ring and the crank arm. – Daniel R Hicks Aug 30 '12 at 17:41

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