Originally Posted by msu2001la

Thanks for this suggestion. I did eventually try the same step without adding sealant first, and same result (but less mess). I also tried inflating with the valve cores in place and couldn't get the bead to seat.
I did inflate with tubes and let them sit overnight at pressure, and just now deflated one of them and it stayed seated, so maybe I can pop one side off to remove the tube and get it back on and try again.



The tires were a bit difficult to get on the wheels, but not impossible. They certainly went on easier than the GP5K's I did last summer, but required more effort than a standard clincher. I'll check out this stripper product. These wheels came stock as "tubeless ready" with tape installed, and I've never done anything with them. I am suspecting that at least one of them needs a new tape job though.



Thanks. I will try first without sealant in the future to at least avoid the mess. I agree that the tire wasn't truly seated, and is why it was sliding back off. I was maxing out my Airshot at 160psi and dumping straight into the tire with no valve core. To get any more air flow/pressure I'd need a compressor. At that point I may as well just have a shop do it, which starts to make tubeless unrealistic for me.

Have you tried this with CX/gravel/road tires? Seeing him pop that MTB tire onto the wheel without any tools makes me think this probably isn't going to work for me. I had to use multiple levers simultaneously to get that last bit of tire bead over the wheel. The CX tires I'm using are not as tight as the GP5K's I took off, but I'm still skeptical that I could get a lever under the bead and pull it out towards the edge the way he's showing. He's also struggling a bit on the second side, even with that loose MTB tire.

Still, thanks for sharing. I'll give it a try.