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Old 05-12-13, 05:08 PM
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You will need to make sure that the taper in the new arm is oriented the same as the one you have. They come in two flavors, "square" and "diamond", with the recess aligned 45 degrees differently. From the photos the diagonal of the recess will need to line up with the crank arm. The other orientation, with the recess edges aligned, will put the crank 45 degrees out and make pedaling difficult to say the least.
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