Only run them on my TT bike. I don't notice a difference.

Thanks for your reply Grill, do you think the Q Rings make a difference?

Not that I can tell although they don't seem to hurt. I'm going to O's soon to see if there is a difference.

I use them on both bikes. I like them a lot. More power...no, I don't believe so. But, they give me a smoother feeling when in the aero bars or drops.

The pedals speed up a little coming over the top of the circle, and it gives a smoothness to my pedaling, especially at the lower cadences (80-85) where I usually ride.

I run it on both bike and I haven't seen any MAJOR dif power wise but my knees feel A LOT better since I started using them.

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The entire event (IM) is like "death by 1000 cuts" and the best race is minimizing all those cuts and losing less blood than the other guy. - Dev

Use the qrings on both road and TT bike and love them. Because I believe I have an easier time getting through the pedal stroke more smoothly, I feel as if my power is sustained for a longer period of time and I have better performance as a result.

Regards.