I would like to start using a power meter this year. Does anyone have experience with the Quarq power meter? My current bike has XT drive train with double chainrings, how will the SRAM rings shift with the XT shifters and chain?
Thanks for the advice.

I've been using a Quarq on my cross/dirt road bike all year, and I'm running it w/ a Record 10 kit, and its been fine, even w/ the sram rings. I assume it will work well maybe not as well as the pure XT kit. If worse comes to worst, you could always just buy xt rings for it, they are both 104 bcd.

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Rapha cycling's Ed Hardy

if you want to know something else then chainring performance PM me, I have some experience with the Quarq MTB PM

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No problems with compatibility, it'll work fine with the XT stuff.