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Old 01-30-2013, 10:16 AM
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2door 2door is offline
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Location: Littleton, Colorado
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Default Re: Problem: Chain comes off sprocket

Also as was mentioned above by Wightboy, sprocket concentricity and lateral alignment is also critical. The rear sprocket can not have any wobble either horizontally or vertically. It must run true with the rear hub as viewed from the side and the rear. Wobbling will derail the chain as easily as misalignment.

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