I'm pretty sure I pinched the tube when installing it in the drawbar. However, I was able to fit it into a tubeless tire that the local tire shop couldn't fix. After replacing it and hearing a pinch of air coming out, I poured some slime pumps into the tire and bled it again. I put it on the tube and twisted the hoop to spread the slime and it works great! It was more work but a lot more economical than the $30 I threw at a local tire shop.