If you're a detail-oriented cyclist that cares about maximizing every watt, this gauge is for you. It lets you dial in your tire pressure with insane accuracy—within +/- 1.2 psi of your target. Why does that matter? Because for every 1 psi you overinflate, you’re losing 1 watt to rolling resistance, and the gauges on most pumps just aren't nearly precise enough. This gauge is compact, making it easy to travel with—pair it with your mini pump, or use it with whatever pump you find race morning, and you’ll know your pressure is dialed. It even ships with the FLO Locking Chuck for easy connection. If you’re the kind of rider who leaves nothing to chance, this tool might be your new secret weapon.