In another topic a member says that rather than wait for the RAC in the case of a puncture, he has a plug kit with three little gas cylinders.
Does anyone know at what pressure the air is in the little canisters? Does anyone know the capacity of them? If you are ever faced with a puncture and you place the three little canisters down beside a big flat back tyre, you may wonder how can they possibly fully inflate the tyre?
They can't. You may be lucky to get the tyre up to 15lb. Which is probably enough to get you, slowly to an air line, or someone with a pump.
This movement can create another problem. The mushroom plugs are held in the tyre by the internal air pressure, plus some initial help from rubber cement. If the plug is inserted before the cement has partially cured and then the bike is ridden on the partially inflated tyre, the extra flexing of the tyre can cause the plug can fall into the tyre - lubricated by the sill soft rubber cement.
Never cut the 'tail' off of the plug until the tyre has been inflated to its full pressure.
You may as well use all the rubber cement in the tube because any left will harden in the tube very quickly.
A well set plug allows you to ride normally and will last the life of the tyre.
But so will Ultraseal and it will also avoid the nasty experience of a high speed deflation - or rather the slowing down from a high speed puncture.


