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A quick way is to get the closest then then scale p is presure d is diameter pScale = pKnown * dKnown * dKnown / dScale / dScale here a close is 26 x 2.4 16 gram so pScale = 27 * 2.4 * 2.4 / 4.5 / 4.5 = 6.68 p is linear with mass so 25gram = 6.68 * 25 / 16 = 12 but on a fat bike I would just carry a high volume pump


The short version: Yes, they are feasible. The long version: You can do a minor adjustment of my answer in this question by changing the molar masses involved. The molar mass of carbon dioxide is 44.01 g / mol. The ideal gas law says PV=nRT, where P is pressure, V is volume, R is the ideal gas constant and T is temperature (in an absolute scale, e.g. ...


Wait, what? The above answers comment on the mass of the air inside a tire (which I assume is what is being asked). However, what is the weight difference from an empty to an inflated tire? Buoyancy says zero! Only measure from this point on is the change of moment of inertia of the tire i.e. how easy it is to accelerate.


Even though this (actually, these, as there are three) question(s) has(have) been answered, like, a year & a half ago, it's early (well, it was when I started typing this). And raining. So I'm not riding. So here I am... Anyway, my answer is really crude (as in rough, not precise, inexact, approximate, but close enough for government work), but should ...

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