Quote:
Originally Posted by Gaz64
Bore size is irrelevant. 100 psi from an air line into the cylinder will still be 100 psi.
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Bore size matters. 100 PSI (Pounds per Square Inch) has a greater overall force when applied to a greater area. It would be 200 lbs force when applied to 2 square inches, but 500 lbs force when applied to 5 square inches.
That's also why a narrow bicycle tire (e.g. 700 x 25c) needs more pressure (100-125 PSI) to support a given rider weight than does a wider tire (e.g. 700 x 38c) - which might only need 60-80 PSI.