Slow leakage is in general a great advantage of tubeles tyres. However, if not detected in time, it could become a disadvantage also. For example, in my case I am always scheduled to drive to Mumbai on Friday evenings. Suppose during the week-days while I am in Pune, the tyre picks up a nail, say, on Wednesday morning. In case of tubed tyre it would immediately depressure and the problem would be solved then and there -- sudden depressurization is not a problem at the slow speeds we drive in the city. However, in case of tubeless tyres, the leakage will be slow and I will not be able to detect the puncture. I might find myself in serious trouble while driving at high speed on the Expressway on Friday, if I did not detect this puncture.
This scenario might just have happened in my case last week, except that I frequently inspect my tyres visually and always check my tyre pressures on Friday mornings (or whenever I embark on long drives). I found the tyre pressure at 30 psi, down by 5 psi from previous Friday. This puncture would be very difficult to detect by visual inspection, as the pressure has not dropped sufficiently and the nail was a small one on the inside edge of the tyre. That is why frequent checking of tyre pressures/visual inspection becomes important in case of tubeless tyres.
 [ http://in.youtube.com/profile_videos?user=sradhakr1&p=r ] & [ http://arxiv.org/abs/quant-ph/0504115 ] & [ http://www.worldscinet.com/ijqi/08/0803/S021974991000640X.html ]
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