plain and simple does wheel spacers increase or decrease offset?


i'm using this website to see what the offset differences is.

http://www.1010tires.com/WheelOffsetCalculator.asp

my OE wheel is 17x7 with a +45
i'm looking at 18x8 _+48

it says i'll have 16mm less space between wheel and strut. So ideally i would need a +32 offset for it to sit exactly as OEM would.

So now if i add a 15 mm spacer would it bring me down to a +33 offset on my wheel or would it go completely the wrong with and give me +63.

I'm thinking spacers will decrease offset but i can be wrong.

 

wow.

yeah... spacer decreases offset.

 

I hear they make spacers that increase offset now.

True story, made from black holes.

 

Its not overly hard to understand, but at first it can be tricky.

The higher the offset, the closer to the relation of the actual center of the wheel is, in relation to the hub.

High offset (IE +50) would be the wheel would sit in closer to the car, IE like stock how they sit in like 1". The lower the offset, the farther the wheel will stick out.

IMO one of the main reasons to get aftermarket wheels, is to get rid of the tucking wheel.


Generally with an 18x8, youd want a mid to low 30's offset to sit flush. Id personally run a 10-15mm spacer.

 

 

very interesting... must be some new jdm stuff.

 

It's not a very hard concept to understand. I dont know why people are so baffled by such a simple spec.

And it's the lower the offset, the closer the hub would be to the center of the wheel. 0 offset means the inner hub face is directly at the center of the wheel. Any placement of the hub towards the outside of the wheel = positive offset. placement towards the inside means negative offset which most cars do not use.