I took at look at these. I ride and tour on a tandem with rim brakes. Having had a few tires blow off the rims, I'm interested in anything that will keep that from happening. I googled for reviews, which were mostly positive about the quality of the tires and their handling. However, the road experiences with flats kind of turned me off. One little 2mm cut and one has to throw the tire away, even walk back if one hasn't brought another tire. One can't boot them. Of course I don't know if one could boot a regular tubeless, what with the slime to prevent a patch from sticking on the inside.