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This replacement involves removing the crank arm in order to access the chainring you are trying to replace.
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Remove the cap covering the crank arm using the 6mm Allen Key
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Screw the larger diameter threads on the crank puller into the hole you removed the cap from.
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Slightly tighten it with an adjustable wrench.
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Tighten the handle on the crank puller until the arm and gears slide off of the axle.
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Remove the four 6mm hex bolts from the small chainring using the 6mm hex screwdriver. This will allow you to remove the chainring.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.