Review on Effortlessly Inflate Your Bike Tires With BriskMore CO2 Inflator And 12PCS X 16G CO2 Cartridges - Suitable For Presta And Schrader Valve, Ideal For All Mountain And Road Bicycles by Allan Ryser

This bicycle tire CO2 inflator has two essential features. Firstly, it has a control valve that lets you easily control how much/little CO2 you put into the tire. When used with inner tubes, this allows you to put a little pressure in the inner tube before seating it (to prevent a pinch flat) and then precisely control how much final pressure you put into the tire. You can even save the unused CO2 for later use. Secondly, it securely screws onto the inner tube valve at any angle. I've used it once for an unplanned road bike tire flat and was very happy with its operation. Purchased a second one for my MTB.