offsets - Wheel and Tire Forum

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offsets
Thursday, May 25, 2006 7:28 PM
ok i read through the sticky above and didn't see what i needed to see.

The rims i want come in the option of 35mm offset and 42mm offset.

What exactly does this mean ... the that center of the rims is closer to the outside of the rim?

please some one help me out a little ... and sorry if im unclear! its kind of hard to describe/explain!




Re: offsets
Thursday, May 25, 2006 8:29 PM
a 35mm offset is going to put the tire farther out of the fenderwell. 42mm is going to bring it in, closer to the suspension.


Desert Tuners

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Re: offsets
Thursday, May 25, 2006 8:37 PM
ok got it! thank you so much!



Re: offsets
Friday, May 26, 2006 2:07 AM
A positive offset moves the hub mounting surface towards the outside of the wheel, which pulls the tire in towards the car.

A negative offset moves the hub mounting surface in towards the brake, which effectively pushes the tires out of the wheelwell.

Maybe this will help





The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel. The offset can be one of three types.

Zero Offset
The hub mounting surface is even with the centerline of the wheel.

Positive
The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.

Negative
The hub mounting surface is toward the back or brake side of the wheels centerline. "Deep dish" wheels are typically a negative offset.

If the offset of the wheel is not correct for the car, the handling can be adversely affected. When the width of the wheel changes, the offset also changes numerically. If the offset were to stay the same while you added width, the additional width would be split evenly between the inside and outside. For most cars, this won't work correctly. We have test fitted thousands of different vehicles for proper fitment. Our extensive database allows our sales staff to offer you the perfect fit for your vehicle.





Wheel offset
The wheel's offset is the distance from its hub mounting surface to the centerline of the wheel. To determine wheel offset:
Position the wheel on a flat surface and measure its overall width.
Divide the overall width by two, then subtract this result from the backspace value.

Offset = Backspace - (Rim Width ÷ 2)

The offset of a wheel can be one of the following three settings:

Zero offset:
The hub mounting surface is even with the centerline of the wheel.

Positive offset:
The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front-wheel drive cars.

Negative offset:
The hub mounting surface is toward the back or brake side of the wheel's centerline. "Deep dish" wheels are typically negative offset.





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