The air pressure is very strong, it can go up to 150psi, which is more than enough for my bike tire. It can adapt to your target pressure. I am now using it to inflate a bike tire that I have set at 90psi. And relatively quickly without much effort. Sometimes I ride my bike longer distances and don't need a hand pump anymore (a bit heavier but smaller, fits my jersey, FYI). I also use it to inflate a tire to the correct pressure before a long trip. All in all, this is an easy to use, compact portable electric pump.