^^ Oh yeah, I forgot.

You really do need a proper shock-pump. It's not that the tire pumps can't get to the pressures required, but when you take the nozzle off, tire pumps release an awful lot of air and unpredictable at that.

Shock-pumps have more accurate air-pressure gauges and the nozzles are designed to screw onto the valve and lose very little pressure when taken off. What's more important is that this pressure loss is consistent so it gets factored in whatever pressure reading you settle on.

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