How safe are these tyres in the event of a puncture? My concern is that they are very easy to get on and off my Mavic Ksyrium Elite wheels. No levers are needed at all. Though this is good for installing tyres etc, I almost had a heart attack when I had a puncture on the front tyre. It felt like the tyre was going to come off the rim and given how easy they go on and off this could be quite likely. Any puncture is dangerous, especially at speed, but the tyre coming off a rim is more dangerous surely? Other tyres I've used are much harder to get on and off. Is it the tyres, the rims or is it just me?