Owning a high-pressure floor pump is great and all when your bike tires need inflating at home, but what if you have a problem while you're out on a trail or some road in the middle of nowhere?

Having a CO₂ inflator in your pack is a great way to prevent being stranded in a situation like that. It's compact, supports a variety of threaded CO₂ cartridge sizes (12g, 16g, 20g, and 25g) — although 16g ones are most ideal — and it has a protective foam sleeve to keep your fingers from freezing while you air up your bike tires.

This solidly built tool is CNC-machined from aluminum alloy and is compatible with both Presta and Schrader tire valves without having to switch out heads. Just an awesomely reliable bike tool.

Get the inflator (sans cartridges) for $20 on Amazon.