Tire pressure is everything on a Fat Bike! Many pump gauges are pretty inaccurate, especially at low pressures. A PSI or two could be the difference between a perfect ride and a burped tire. These high-quality gauges are built to exacting standards to ensure accuracy. The Meiser Presta-Valve Dial Gauge comes with precision brass movement and a pressure relief valve to ensure that you have the correct amount of air in your tire. Ideal for every rider and one more for the tool box.