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If rim size DOESN'T


obviously it will sit higher
but its not just a bigger rim what will give ground clearance, its more on the tire size.
there are some cases like, for example
a R15 235/75, a R16 235/75 will be higher cuz the rim radius is 1" taller. but if u get a R15 31", then it would be taller than the R16.
 
Ok I call:bsflag:

If you took the ORIGINAL rims off this car and put them on ( with no tires ) and measured the distance between the bottom of the dif and the ground and then took the CURRENT rims on the car ( with no tires ) and measured the distance between the diff and the ground it would be different,in fact it would sit taller.:thefinger:

Tell me I am wrong, I dare ya!!

You're not wrong, but also not correct either.

The tire sidewall height has everything to do with it. Rim size is only how the tire fit's onto the wheel. The TIRE's overall diameter is much larger than that of OEM, by coincidence, the rims are also larger in this example. But it doesn't have to be.

It would be like going half way to a destination. Yes the rims are larger, but the the "wheel" itself doesn't stop at the rim, it goes all the way to the ground where the tire rubber is. You're leaving out a very important part of the measurement.

So pick apart this logic.

You have a 31" tall tire (outside edge of the rubber to the opposite outside edge). Tire's are measured based on their outside diameter. ALL of them.

Which is larger?

A) A 31" tire with a 22" rim?
or
B) A 31" tire with a 15" rim?

*edit:

That car also has a lift kit on it to fit those things, because those tires are not even close to OEM sizing.

*Edit again:

These are some 44" TSL boggers. They look about a 15" rim. By your logic, if I put these tires on instead of those "ballin" things, it should lower it, substantially. These are obviously smaller rims, even if they aren't 15" they're still smaller by a large margin.

100_0653.JPG
 
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People who lift their cars like that should have their head examed. It may look cool and badass to them. But in reality, it serves no purpose and could be more like a hazard.

As for the increase in size of wheel to increase ground clearance. The answere is yes and no. All the posts above have already explained. On my Ranger, it would be a yes. I went from 225/70R14 to 225/70R15 (changed the wheels to 15"). This gave my Ranger a 1/2 inch increase in ground clearance.
 
I don't disagree, but it's the overall diameter of the tires that raises a vehicle, not the rim diameter alone. You go from a 15" rim to a 20" rim then the tire diameter is probably going to be larger too.
 
if you had two identical tires that where 32" in diameter and one was on a 14" tire and the other was on a 17" tire the only thing changing is the size of the rim and your tire would probably hold less air. Your not gaining any ground clearance unless you go with a bigger tire, period.
 
@R***A**N**G**E***R

which wheel will give your ranger more ground clearance?
1)The 17" wheels with a 33x12.5R17 tire
2)The 15" wheel with the 33x12.5R15 tire
3) The 22" Wheel with the 33x12.5R22 tire
 
Does smaller sidewall area affect how the car rides?

Yes, it will make it ride stiffer since the tires doesn't have as much give. It also makes blowing the tire on a curb or pothole easier.

I don't disagree, but it's the overall diameter of the tires that raises a vehicle, not the rim diameter alone. You go from a 15" rim to a 20" rim then the tire diameter is probably going to be larger too.

Possibly, but the OP has in this thread and another one indicated that he believes that increasing only his RIM size (IE 31X12.50X15 vs 31X12.50X16) will give him more clearance. We need to get the RIM size out of this equation and all of our explanations or he is going to keep coming back to that point.

if you had two identical tires that where 32" in diameter and one was on a 14" tire and the other was on a 17" tire the only thing changing is the size of the rim and your tire would probably hold less air. Your not gaining any ground clearance unless you go with a bigger tire, period.

Exactly.


@ R*A*N*G*E*R: You are ignoring an important piece of this equation. It is not your RIM that is in contact with the ground. It is your tire. That is the diameter you need to be looking at. I understand completely what you are trying to do, and to do it you need to be interested in the part that touches the ground, since you are trying to get farther off the ground. Everything above what is DIRECTLY in contact with the ground does not factor into your designs. To do what you are trying to do you can do it much more easily and cheaply by purchasing a larger set of tires.
 
I don't disagree, but it's the overall diameter of the tires that raises a vehicle, not the rim diameter alone. You go from a 15" rim to a 20" rim then the tire diameter is probably going to be larger too.

I agree, the 265/70-17 tires that used to be on my F-150 were virtually the same as the 265/75-16's on my dad's GMC.

Same goes for the 235/70-16 tires that originally came on my F-150 vs the 235/75-15's on my Ranger.
 
Wow rims that cost more then the car now that's useing your money right the president should be proud of him self of letting it come to this
 
well i think its their money, so they can use it as they please.
just my opinion, nobody should tell u what to buy or not.
 

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