Designed for low pressure high volume tyres the airtool mtb provides precise pressure to ensure your tyres are set up for whatever the trail throws at youlargest 3quot 76mm oversized gauge with precise 70psi 48bar pressure rangemassive 508cc volume aluminium barrel pushes enough air to seat tubeless tyresnew ergonomic wing handle with pressure relief valveincludes spare rubber seal for headauto selecting switchhitter ii technology472e 9055