Thread: Equipment/Product Review (1984) Shimano Biopace / Non-Circular Chainrings
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Old 07-31-20 | 06:58 AM
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SpeedofLite
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Equipment/Product Review (1984) Shimano Biopace / Non-Circular Chainrings
This post contains two short articles.
The first is focused on Shimano Biopace.
The second is a brief review of other non-circular designs and the author's experience with Thetic, Bridgestone, and Durham,









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