I suppose i should say that they make more sense than solid tires -- at least in some circumstances. Different world, but tubeless-with-sealant has more or les

I suppose i should say that they make more sense than solid tires -- at least in some circumstances. Different world, but tubeless-with-sealant has more or less taken over mid- to high-end mountain bikes. Lower pressures help prevent rim blowouts as well as allow you to fully exploit grip on unstable terrain, and then you don't need to care about sharp rocks or thorns or goatheads or whatever as much. The idea doesn't translate as well to road bikes, which have (even now) very high pressures -- usually 75 -- 120 psi. The "sealant spooges you in the face" problem is certainly a real one. I don't have sealant in my car or motorcycle tires, but if i did i would warn the mechanics beforehand!