The tire lose, which it might not be, I haven't looked yet, is on me. I ran an outdoor/loomy track and the rear tire filled with fine/moist dirt which over a couple heat races amazingly turned into a dozen 3/16 inch rock hard balls that worked there way to the middle of the tire. The only way to remove these (I had typical 1/8 vent holes in the tire) was to cut the inner bead, remove the "balls" and re-glue the tire, which I've done MANY times. I wasn't able to get both halves of the tire clean enough and the joint separated while leading after making my way up from 7th on the grid. I'll be honest (unlike most) and say this was in the B-main, which isn't normally where I run but 2 bad qualifiers put me there.....I was on a top 4 pace at the time...coulda, shoulda, woulda,...I know