Thanks for the answer guys !
Yeah it's a fast tire for me as I never tried something smaller/racier. And I compare them to bigger knobbies in 42 ...
I'm a bit hesitating as a pair of kojak is less than a g-one ... And tubeless is appealing but I never punctured on my kojak.
I fitted back my kojak and they're faaaaast (after wtb resolute) !
Appart the tubeless thing are the g-one speed really faster ?