I've had several varietys of flats. The one on my tiger was a roofing nail and it was flat real damn quick. It ripped a big enough hole that a plug or slime wouldn't fix it. On my spoker I had the carcass ripped a bit (as mentioned earlier) but did not have the tube damaged. Doesn't matter at this point,the op wisely went his own way and found a willing trade closer to home. Damnit!