Topeak SmartGauge D2 Pressure Gauge
Topeak SmartGauge D2 Pressure Gauge, Don't bother squeezing your freshly inflated tire--that won't tell you much. The Topeak SmartGauge gets it right with digital precision every time. It's compact for ease of use anywhere, and quickly provides a clear reading for both road and mountain bike tires, so you can ride with confidence.