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Indeed. BRR suspects that it's a different Black Chilli compound than the Speed's too, based on their slightly surprising results, saying the knob height difference doesn't suffice as the sole reason for having higher rolling resistance. These are the tyres right? https://www.merlincycles.com/continental-terra-trail-performance-tr-folding-gravel-tyre-700c-226802.html
I'm looking for Tubeless and I'm assuming TR does mean they are, but nowhere in the description does it explicitly state this is the case.
They're like 50g heavier, I guess because of the bigger knobs but weight on gravel bikes isn't really the main concern. Anyway, they ride nice, I've been impressed but only had them a couple months