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Do Non-Circular Chainrings Enhance Cycling Performance? A Systematic Review of Randomized Crossover Trials.

Filipe Maia1, Henrique Sousa1,2, Oscar Garcia-Garcia3

  • 1Research Center in Sports Science, Health Science and Human Development (CIDESD), University of Maia, 4475-690 Maia, Portugal.

Journal of Functional Morphology and Kinesiology
|September 26, 2025
PubMed
Summary

Non-circular chainrings do not significantly improve cycling performance or physiological factors in endurance cycling. However, these innovative chainrings may offer benefits for enhancing sprinting capacity in cyclists.

Keywords:
chainring geometrycycling economypedal efficiencyphysical performancesports

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