Six weeks ago, I bicycled down from Grimsel Pass in the Swiss alps. I got completely carried away by the magnificent views. Almost down from Grimsel Pass, I suddenly had a flat tyre. I attributed it to the fact that the rims of my Brompton had gotten to hot from me pushing the breaks too long. After changing the inner tube, I continued up to Furka Pass.
Yesterday, I had a detailed look at the broken inner tube; funnily enough, it was OK. Any thoughts?