For the 2nd time, my back tire came off the rim, it's a tubeless one and I'm not sure why. Could it be because I usually slide going left? Or because last time we put it on, we didn't put any of the stuff that makes it stick on it?
heres what u do, let all the air out, better yet take the inside of the stem out so u know all the air is out, and then push on each side wall, if its snug then you shouldnt have any problems, but just to be sure get a bead breaker and take the tire bead off, then clean the bead and put it back
after installing a tire you need to ride easy for a few miles to allow proper seating of the bead ,if you hammer on it right away you can count on reseating the bead constantly