Thread: Shimano Biopace - For Those Aching Knees.
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Old 09-28-11, 09:49 AM
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Peter_C
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Originally Posted by Sixty Fiver
Biopace did not come in a 4 bolt 64 bcd pattern... it predates this and comes in 110 bcd (touring / atb) and 130 bcd(road)
Thank you for the info though. Would you then suggest "Q" rings? Is this the same theory?
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