Senior Member
Join Date: Dec 2008
Location: Damascus, MD, USA
Posts: 1,294
Bikes: Neilpryde Nazare, Storck Scenero G3, Colnago Extreme Power, CAAD 10, Bowman Palace R, Strong Custom Foco Steel, BMC SLR01, BMC ALR01
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I ride both round and oval chain rings on my various road bikes. After many years and lots of miles on both, here are the differences I have detected. After really long rides, 80 miles or more, I find my knees feel a bit less achy on oval rings. Toward the end of those same rides, I think my legs feel a bit less zapped with oval rings. I have never detected a speed, sprinting or climbing difference based on which rings I ride.