Illustration of the Biopace noncircular chainring devised to increase... | Download Scientific Diagram
NOS Shimano BioPace Chainring 52t, 130 BCD, Dark Anodized Silver - Bike Recyclery
Shimano FC-M250 Exage Country Biopace Crankset
Shimano Biopace 50/44/28 Chainring Set - Gringineer Cycles
What is a “Biopace”? Does it help make riding easier? I'm considering swapping that out: I'd like the look of an all black chainring and crank arms. No idea what to look