Here is some info about wheel sizing:
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, (measured in millimeters). ref tirerack.com
Zero Offset - The hub mounting surface is even with the centerline of the wheel.
Positive - The hub mounting surface is located in the front half of the wheel closer to the wheel face.
Negative - The hub mounting surface is located in the back half of the wheel closer to the back lip flange.
For more detailed information see - https://www.tirerack.com/wheels/tech...jsp?techid=101
And see "The Right Fit is More Than Just Diameter" - https://www.tirerack.com/wheels/tech...jsp?techid=103
And one other thing to know is "How We Know What Fits" - https://www.tirerack.com/wheels/tech....jsp?techid=95
My wheels are 16X7.5 5114 ET40 AR RAZOR
- 16 is the wheel diameter
- 7.5 is the width
- 5114 is the bolt pattern - It would actually be 5 x 4.50 or in metric 5 x 114.3
- ET40 is the offset - The term ET originates from the German word 'Einpresstiefe' which translates as 'insertion depth'. So my rims are positive 40mm offset
- AR Razor is the make and model of my rim
- Centerbore - 60.1mm - Is one other crucial measurement that is not listed here which would be the diameter of the hole in the center of the wheel. The centerbore may be larger but centering rings should be used.
So from the above, if your wheel offset is wrong it could cause the wheel to contact the brake rotor or other suspension components. It can also cause the wheel to stick way out of the wheel wells. The wrong offset will also cause more stress on suspension components and wheel bearings, spacer can cause the same issues.
If the centerbore is too small the wheel won't fit, if too large (not a real problem) then you should use centering rings.
If the bolt pattern is wrong it won't fit.
The wheel must be the proper diameter and width for the tires being used.
It may be that my sole purpose in life is simply to serve as a warning to others.
RAV4.1, 1999 RAV4, 3S-FE engine, E250F transaxle 5sp AWD, 5 door, LHD, Redneck Edition (RNE), Mossy Oak Obsession wrap, heavily modded, TOAD
'96 Newmar Mountain Aire, 40' diesel pusher motorhome, the mothership