Last summer I bought a tiny puncture repair kit that contained self adhesive patches. It was the most portable puncture kit I'd ever seen, weighing next to nothing and coming in a postage stamp sized plastic box.

In use, the kit seemed to work well too, find the hole, rub with the supplied emery paper, peal the patch and press it on. No messy rubber cement. No fuss, or so I thought.

This week, in two bikes I was out riding and had a flat tyre. I wasn't too far from home, so was not hugely inconvenienced. In both cases, the flats were caused by failure of the seal on these self adhesive patches. You could see where the air had forced its way out and I repaired the tubes again with a traditional rubber cement kit.

Has anyone else had this kind of problem, or are you all so rich that you just throw away your punctured tubes? I'm not used to having a properly repaired tube fail later down the road.