The info I've gathered here is that the stock xB wheel offset is 38. Now, that means absolutely nothing to me. :roll: But, when wheel shopping, how much of an offset diffference is allowable before straining the spindles and suspension? Is 40 or 36 allowable?

Please inform.

TIA

It all depepnds on the width of the rim you are looking to get, 90% people here are running honda offset 40 --> 45 and most of them have 7 - 7.5 wide rims, so if you are looking at the most generic size of all 18x7.5 et 40, it should fit not problem,but you can use some spacer or onetone's shim to be safe and even look better !!! Just my 2cent, Sean

Thanks, but I'm actually shopping for the stock rim size: 6.5 or 7 inch width for a 15 inch wheel. Would 40 or 36 be okay? And, when do you need a spacer--when the number is higher or lower?

TIA

So wheres a good place to get spacers? I'm getting 17 X 7's this weekend, 40 or 45 profile tires...the offset is 42 i believe(but the offset is 48 for the 45 profile tires)...i'm assuming these spacers would come in handy? Pepboys, or what? Make some recomendations, sorry for hijackin the thread. ;-)

Actually the stock wheel is 15"x5.5" ET38. But there is so little selection below 6 in width that it's not worth looking. :?

There is a thread with the stock wheel dimensions with a fitment guide here: http://www.scionlife.com/forums/viewtopic.php?t=348

We have 15" wheels listed in our data base with offsets ranging from 37mm to 42mm depending on the width and the design. None of these wheels would require a spacer. Spacers are used if a wheels offset is higher than recommended, or any time you want to push a wheel away from the center of the vehicle towards or beyond the fender. For more information see "Offset" below:

Offset

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. This is why we test all of our fitments before adding them to our data base.

Thanks for clearing that up!

- woof