Meiser Accu-Gage Fat Bike Presta Valve Low Pressure Bicycle Tire Gauge Mini-bicycle gauges to check your pressure on either Presta or Schraeder valve tires. Now Introducing: Low pressure bicycle tire gauges for Fat Bike Tires. Designed alongside Quality Bike Parts, these units are perfect for Fat Bike tires requiring low pressure for a better ride.30 PSI bicycle tire gauge for Presta valve tires.Sold individually.Note: For Presta valves ONLY.