Backspacing, More or Less?

[YotaFun]

Okay,
I have search here and google,
and am still utterly confused
and wish we could have make a wiki or something for this.

Lets talk backspacing.
I know the stock backspacing for the stock rims on Toyota,
I have read it 1000 times it seems through the search function here.

What I want to know. As numbers go lower, say 4", 3.75", etc, do the tires stick out more from the vehicle or do they go in more?

The opportunity to buy rims for cheap is coming up more and more but I have been holding off due to my lack of knowledge on backspacing.

So this inquiring mind would love the help of everyone here on UT to help

Thanks in advance everyone!
Avy

[4runnerchevy]

I imagine, if you googled then you read this.

http://www.getahelmet.com/jeeps/tech/backspace/


From what I gathered, less backspacing makes your rim stick out more. Its early and I could be wrong.

Good luck Avy

[YotaFun]

Yeah I did see that link.
I presume you are right that less Backspacing means more space away from the truck.

[04 Rocko Taco]

Avy - the backspacing number is basically the measurement from the back of the "face" of the rim (the part that contacts the hub) to the inboard side of the rim, so from the back of the face to the inside lip of the rim is the backspacing.

0" backspacing would mean all of your rim would be OUTBOARD of the face. Those would be super deep dish rims, and look like a mexican frog truck. The larger the number, the more rim tucked inboard of the face, and the smaller the number the more rim outboard of the face.

[YotaFun]

So I would want a smaller number so that the tire sticks out more away from the UCA and such for rubbing issues?

[4runnerchevy]

Exactly. Don't go too much!

[YotaFun]

I was thinking 4" or 3.75" Nothing more than that

[04 Rocko Taco]

smaller means less rim towards the UCA's correct.

[YotaFun]

Well thank you gentlemen for your time and explanation :-)
Now on to a new thread to post me most recent issue...

[04 Rocko Taco]

I wait with hopefully an answer. lol