I have always had great things to say about Tubliss. The product has worked well.... until now. I decided to put tubliss in my new bike for several reasons. Able to run low pressure, 180% rimlock and to keep from banging my rims at low pressure. The front went on great, like I expected because I had done it several times before. The rear was tough. Everything seemed good. Everything held air, but when I went to check the pressure in the inner tube, looking for 100psi, the moment I put the checker over the stem, it acted as if it busted. Nutech quickly sent me replacement. I decided to fix it today. I began by lubing everything good. I knew from videos that you have to be careful as you remove the tire not to grab the orange liner. It would help if the tape were not an orange/red color. But I took my time. 3 tire irons are not easy when your trying not to grab the inner. I was patient. After awhile I almost had it off when I noticed I had damaged my tire bead, trying so hard not to grab the inner that I had not gotten a good bite on the tire, thus possibly ruined the tire bead . This p1ssed me off. Then I notice a deformity from what I assume was the bead lock. This made matters worse for my anger management . Then I began to try to remove the orange bladder trying hard not to damage the inner tube because I wanted to see where the leak was. After awhile, my patience was wearing. Then I began to see what was looking like damage to the orange liner as I was removing it. Realizing that I would never reuse it because the labor of removing it again if it failed was not worth it. After 1 hour, I got so p1ssed that I just lost it. I got a knife and started cutting it off. It really made me lose it when the knife would not cut through. No more finesse, no more trying to protect it, cussing every breath. Anyone seeing me now would run hide. What is it with an 18 inch Tubliss???? Maybe someone has done it... but I will never plan on a reuse of the inner on an 18 again. Disposable at best. The Tubliss instructions show 2 examples of damage. Both my tire bead and inner are worse. Maybe deformity is not so critical but it would seem that the design of the system requires no deformity in order to seal. I can't decide, buy another at $90 and consider them disposable or look at other options. Functionality of the product is great, installation, good so far on 19 and 21 but the 18..... why so much harder? Removal.....Mercy, scares me. I have a 21 on another bike to repair. Wonder if it is going to be the same?