DETAILS WAY MORE ACCURATE THAN A SQUEEZE. Today&';s wider, lower-pressure tires are more pressure-critical than back when we just used to put as much pressure in as the pump could stand. It&';s not about fending off flats these days, it&';s about grip. And the difference between too much and not enough can be as little as a couple of pounds of pressure. The days of &';giving it a squeeze&'; are over. You need our help.