Thread: Anything really wrong with Biopace?
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Old 05-02-17, 04:11 PM
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Shimagnolo
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Back in the 90's, I bought a used touring bike which had Biopace rings.
IIRC, the small and middle were Biopace, and the large ring was round.
I did not like them because it felt like I was pumping a pair of pistons, instead of spinning.
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