The Schwalbe Airmax Pro digital tyre pressure gauge is very precise, measuring pressures up to 160 psi (11 bar) and is suitable for both Schraeder (car type) and Presta valves.
Test tyre pressures at least once per month with a pressure gauge. Testing by thumb is completely unreliable as with just half of 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.
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