Has anyone had experience with these? Seems to be a better solution than the Tubeliss There's a couple of Youtube clips http://www.youtube.com/watch?v=YY7T0GEY ... el&list=UL
I have seen this before. I don't know about you, but I change my tire pressures often depending on how much pavement or sand I will be doing along with other factors like load or speed. Having to stick a needle in my tire every time does not seem practical to me. For a bike primarily used off road with mostly low pressure, maybe.
