Thread: The Science Of Frame Pump Vs. Tire Pressure Requirement
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Old 04-24-15 | 12:31 PM
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Bill Kapaun
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Originally Posted by Retro Grouch
It's all about pressure and volume. 2.35" Big Apples have a lot more volume than 1.5" Nimbus tires so they'll take that much more air and that much longer to pump up. The last pump stroke needed to get either tire to 40 psi will take exactly the same amount of effort.
But there's going to be a lot more going from X PSI to 40 PSI.
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