Parked on a slope with car still hitched...
We are staying on a slope today. The trailer had to be leveled side to side which meant that I wasn't able to chock those tires. From front to back is quite a slope with the front having to be rais...
Forum Discussion
Huntindog wrote:GrandpaKip wrote:Ummmm tire flatening on the bottom as pressure drops will NOT cause the diameter to increase. Just the opposite.
I would never dream of just using my x-chocks without the wedge chocks. I haven’t had a problem with either because of cooling tires. Without a doubt, tires will shrink as they cool. But, as they cool, the pressure also decreases, with the bottom of the tire flattening. As this happens, there will be an increase in diameter of the tire.
Now, how much those measurements are, I have no idea. Maybe one compensates for the other. My guess is that both are very small. As I said, I have not noticed a problem and I have checked. I do not doubt SoundGuy’ s account, I just have had a different experience.
When I was into car racing, we would often change the diameter of the tires with air pressure to get a specific amount of stagger.
Back to TTs. Every single time I have set up camp using any chock, I have had to retighten them after the tires cooled. Now I am in AZ, so my tires likely run hotter than most, but the principle is the same no matter the temp.
Hot air expands raising the tire pressure which pushes out from inside the tires harder than cool air at lower pressure will.
BTW...... This is WHY you check tire pressures when they are cold.
What I was thinking, was that as the vertical axis length of the tire decreased, the horizontal axis length would increase. Just a thought experiment.
