Review on Park Tool PMP 3 2 Mini Frame by Dustin Gabrielle

Compact enough to fit on a seat tube and securely fastened with a protective rubber mount so it won't snap off even with a hard hit. It would have been nice if the air port had a plug to keep mud and water out, but this can be avoided by rotating it towards the rear wheel. Maybe a little more pumping power, but it's limited by the strength of your arm, and it should be possible for most of us to gain 40 pounds, which should be enough to get you home to a floor pump (recommended buy). I had a CO2 pump, but it never worked exactly when I needed it. Stick to a simple hand-operated pump (foot pumps also exist) for compactness and simplicity.