I have a new-ish (about a month old) bike that came with tubeless tires (Stan's Grail Team rims and Schwalbe G-One 700x35 tires). I'm near the weight limit for the bike/tire (250lbs.) so I keep them at about 65psi (sidewall says max 70). Every day when I go on my first ride I check the pressure, and they're almost always down to 40psi. Is that a sign of something wrong, or normal for tubeless? I don't mind checking them every morning and airing up when needed, but I'd hate for them to lose air when I was on a ride.

Thanks.

-Brett