I've tried all brand of trial tire, except IRC. My favorite is Michelin X11. During our trip in Borneo Monty use Dunlop while I use Pirelli MT43. When I used Dunlop trial tire, I was faced with the same problem, the knob peeled off, and the soft sidewall made the bike sway side to side at speed. However it has an excellent grip at most surfaces. The Pirelli was a good choice for my trip, I did not regret it at all. I used my Pirelli close to 500km before I left for the frip. Then adding 2300km for the trip itself, it makes close to 3000km on the tire itself, pretty AMAZING. Good luck finding MX knobby tire that can last that long and performs well. Didi and Eca's tire were pretty shot and performed less than good after 1000km. I never had any grip issue at all until the last day of the trip before we got on the boat, it was soupy, swampy mess... Trial tire grips not digs, so it doesn't need the tall knobs as much as regular MX tire. I had one puncture on the Pirelli, it was 3 days before the end of the trip. Since I ran Tubliss, it took me 5 minute to plug it. However, running it at higher speed for a long period of time, the Stop n Go plug came off as the tear had gotten bigger. The front tire was a totally different problems with Tubliss. The Michelin is a much better performance tire than the Pirelli, but the Pirelli sidewall did not collapse when you have a puncture as other trial tires. I rode as fast as 120km/hr on long longging dirt road on Pirelli, it was very stable. With Tubliss I can run with my tire flat for a quite a bit, the rim lock is super good. I still run Tubliss now, but only in my rear, gave up on the front.