Believe it or not, most pump gauges are pretty inaccurate, especially those that pump to very large pressure ranges. With ideal tire pressure ranges for mountain bikes entering the teens amd lower, it can be very difficult to accurately measure the pressure in your tires. 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.
30 PSI max