\ Hi Sam. I've been using that Pirelli MT43 I got from you ages ago, on the rear of my TTR250. It has been a great tyre, but it did something a bit strange just yesterday - topically. I was climbing a steep pinch covered with rockmelon-sized granite boulders, and somehow I managed to pop the bead up from the rim over about 1/5th of the tyre diameter. The tyre was (and still is) running 8 psi, but the bead is sitting right up out of the rim for a stretch. I dunno if the bead has failed or the tyre is a bit "stretchy", but I'll be removing that one and not re-fitting it. I haven't seen this before.