Emergency tire inflators aren't the most exciting of gadgets, but they sure can be helpful. The Fanttik Apex X8 is the fastest, smartest tire inflator I've ever seen—capable of fully inflating a bike tire in under 30 seconds, and shutting off automatically when it reaches the target pressure. It also features a bright and easy-to-see screen, emergency flashlight, and a USB port so you can keep your smartphone on.