Not really. They are *manufactured* to a standard, which is not the same thing. Any gauge can be wrong, the majority are not, so trying one against another isn't a bad idea at all. If 2 disagree, a third puts it beyond doubt, for routine usage at least.Surely all gauges are calibrated to a "standard"?
Not really. They are *manufactured* to a standard, which is not the same thing. Any gauge can be wrong, the majority are not, so trying one against another isn't a bad idea at all. If 2 disagree, a third puts it beyond doubt, for routine usage at least.
I have 2 of the simple ones, they are cheap enough to have one in the glovebox and one in the garage.
I use the tyre inflator at the local Sainsbury’s and it’s gauge reading is the same as on old metal sliding tube type I’ve had for years. The tyre place I use ask me what pressures I want, I check them later & they’ve always over inflated them by a fair bit. You’d expect them to have really accurate gauges!
Always when the tyres are cold.Were you measuring hot or cold? Tires pick up circa 4psi when you drive on them, but the recommended pressure measurements are stated cold.
The compressor is serious overkill. But is also handy for the bike.