Changing Tires

Gdetrailer wrote:

valhalla360 wrote:


I wouldn't worry about overloading the tires as someone mentioned. This is all going to be low speed. The tire load ratings assume dynamic loading. This is much closer to static loading.

This comment kind of grates on me.

#1 gripe around this forum is how BAD the tires are and how bad this and that manufacturer of tires is and what is the best tires to buy..

Folks totally obsess over the subject of tires and then I see a post that states it is FINE to OVERLOAD provided it is "static" or not moving..

WRONG.

Yes, you may not have as much overload as say dynamically or moving, but it IS overloading none the less.

ANYTHING you can do to PREVENT overloading is a GOOD THING.

In this case it IS TOTALLY PREVENTABLE by PROPERLY JACKING THE TRAILER UP.

A 5"-6" ramp lift is not proper to say the least.

Consider a moment that your tire IS the same as a rubber balloon.

You can blow it up to a certain point before it fails and has just a little bit of give.

Now, start blowing that balloon up until it no longer has give but does not blow.

Repeat that several times and you will notice the rubber has STRETCHED in places and it will eventually fail FASTER..

Tires do the same thing, just you do not notice it because they are much thicker and have reinforcement belts..

Treat the tires correctly by not overloading will go a long way to getting as much usage out of them.

I suggest taking a course in statics and dynamics.

Slowly loading a tire to twice it's full rating puts drastically less stress on the tire compared to the tire at 75% of full rating hitting a pothole at 60mph.

You balloon example doesn't work very well as an analogy as it has several flaws in looking at the physics.

Try this instead. You stand straight legged with arms in front of you:
- We gently set a 200lb bag of sand onto your arms (or whatever the maximum you think you can hold reliably).
- We drop a 100lb bag of sand onto your arm (or 50% of the maximum you gave us).

I'll give you 100-1 odds you find catching the dynamic 100lb bag drastically harder than supporting the static 200lb bag. The faster the bag hits your arms the harder it is to catch...at 60mph you will be lucky not to break bones.