Thread: Rotating biopace rings
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Old 10-19-12 | 01:10 PM
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Originally Posted by top506
I've rotated Biopace chain rings 180 degrees to make them work with a Sugino crank. The spider was oriented 180 degrees away from the Shimano crank. I figure all this did was switch the primary power stroke from the right pedal to the left.
By this you are insinuating that Biopace rings are not rotationally symmetrical with a 180deg period, i.e. the cam profile does not repeat every half revolution. Is this true?
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