CO2 Cylinder Inflation Capacity Chart

This chart shows the approximate tire pressure that will be obtained from a specific size CO2 cylinder from a empty tube.   12 gm  16 gm 25 gm  700Cx23  94 psi 130 psi not recommended  700Cx26  90 psi   123 psi not recommended  26x1.5 41 psi  57 psi  92 psi 26x1.95 32 psi  36 psi  60 psi 26x2.125 28 psi  34 psi  54 psi     Also see: What is the average life span of road tires? | Bicycle Pump Types | What is a “pinch flat”?