Bontrager R3 Hard-Case Lite TLR tyre, 32mm or 28mm rather than 30mm though. No tread to speak of but mine have covered a couple of thousand miles on road, bridleways and even the odd bit of South Downs and just wont die.

Panaracer Gravel King Slick R-Line come in 30mm.

At 30mm and assuming your use is 90%+ road, then just a slick tyre will be better. Conti GP 5000 S TR.

Urgh, really? I’m desperately trying to repair a slice in the sidewall of my GP 5000 which is threatening to become a blow out (still on tubes) and which occurred because I rode in the gutter once too often to let traffic past. Had similar on my GP 4000s from a very short detour off road where I didn’t bother dismounting.

Had assumed the tread just wasn’t deep enough to protect the carcass from anything worse than typical road debris.

Pirelli Cinturato Velo TLR on the other hand are marketed as having significant extra tread depth and I’ve deliberately gone gravelling on them more than once with no ill effects.

Edit: or Vittoria Terreno Zero for some token shoulder tread but entirely slick centre

How low were you running them to get a slice in the SIDEWALL

My bad, it’s on the shoulder (i.e. where the token ‘tread’ is).

Maybe the tubeless version is thicker or more robust or something, at no point during the ride did I recall any sort of impact or moment that might have resulted in a ~5mm slice through the carcass and flap of tread material hanging off. Maybe it was just bad luck.

Was just about to suggest spesh roubaix

Vittoria Terreno Dry in 31mm flavour. Look at mild CX tyres because the width is rules-limited unlike gravel tyres

wtb expanse 30 on my surly steamroller fixed after couldn’t afford at time of replacement my usual René Herse