The AirMax Pro digital pressure gauge provides very precise pressure readings, measuring pressures up to 11 bar (160psi)Suitable for both Schrader and Presta valves, the pressure gauge will also function with Schwalbe's 'classic' bicycle valve.Pressures up to 160psi mean it can also be used on most suspension shocks and forks.**Note**You should test tyre pressures at least once per month with a pressure gauge. Testing by thumb is unreliable as with just half the required pressure the tyre will feel hard. Insufficient air pressure is the most common bicycle problem that results in dramatically increased rolling resistance and premature tyre wear and wheel damage.**The blue colour is a trademark of Park Tool bicycle tools and is used under license.**