Nitrogen filled tires & tires for sale spam

[Mark Holden]

The benefit is that nitrogen is "dry" and doesn't have the water vapor
that's in your typical compressed air.

The water vapor condenses out when cold, and then turns back to vapor
when heated up.  So the more water that's in a tire, the larger the
expansion is under heat, so the more the pressure swing is between cold
and hot tires.

On the street it makes zero difference.  On the track, it may have a
slight advantage, but it's still arguable.  And the second you use
compressed air to adjust the pressure, you've introduced water anyhow.
A lot of serious racers use nitrogen, but it has more to do with the
ease of getting a high pressure bottle that can inflate tires and
operate air tools for quite a while without any need for power.

Jim Wright wrote:

> But as nitrogen
> is going to be heavier than helium, I have no idea what kind of
> benefit you might see from this, or how it would relate to tires.