It really is what it says. Just put two of the 35mm ones onto my CX bike(*).

No more frantic pumping or messing around with a coke bottle.

Duck tape the rim.
Put in valve.
Mount tyre, sloshing in a bit of sealant.
Inflate.
A bit of half-hearted shaking just for old-time’s sake.
Ride.

Amazing!

(*) Bought off here from young velocipede.

I found the same with my S Ones. They seal without any sealant or lube on the bead. On Pacenti rims anyway.

I* fitted the same tyres, Schwalbe G-One to the CX bike last week.
Bit tight to seat initially but went up using just a track pump. Sealant in through the valve core, re-inflated them and job done.

They ride brilliantly too.

*actually, the bike shop

Pro one microskin tl easy here – yep, very easy to install on superstar road tubeless rims.

Kept pressure fine without sealant…

Great ride quality and superb grip. Great tyres!

Hope rims and Schwalbe easy tires always an arse… Wtb rims.. Two pumps and a squirt and I was away 😉

Hans Dampf or Magic Mary on to SRAM Roam rims = complete PITA