In a space of about two hours My mate and I had a total of 6 punctures and we never turned a wheel. We both found a flat tyre on our bikes one morning and commenced to repair them. First, John fit a new tube and began to inflate. Before he reached 70lb pressure, the tyre simply exploded. I chose to repair the offending tube and when I refit it, it went flat almost immediately. When I took out the tube there was another puncture about 2 inches from the first. I tried again and the same thing happened. I tried again with the same result. I closely examined the tube after that and found a fault which extended all the way round the tube. To add insult to injury, When we finally got out for a run over the moors, the heavens opened and we were were absolutely soaked. Ah, the joy of the open road .