Review on Revolutionary Colby Valve Permanent Stem Replacement - Effortless Installation from Outside the Wheel! by Justin Santiago

This product does exactly what you want and performs better than expected. At the very least, it's a great glove box storage item for when you're towing a trailer or going off-road. Of course you need something to inflate a tire, but it saves you the hassle of changing tires. You can always change the tire later when you return to civilization. :)