i rode the old 420g thunderburts all sommer long on my gravel bike. rolls super nice, but is not as supple as a 100g heavier panaracer gravelking sk. those sidewalls are so much nicerNo sure how accurate their results are but the CX tires have pretty similar rolling resistance to much larger XC tires, I'd imagine as soon as you hit some soft over hard the XC tyre would dominate the gravel tire.
I wish Ritchey would re-release the old 2.1" Moby Bites, they were a bunch of fun on XC trails.
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