Rims – How to know if a rim will fit my car?
Often we have questions from our clients regarding whether a set of rims will fit their car.
Here are a few things that you can check.
1- Stud pattern
The first thing you need to check is does the stud pattern fit. If your car has 5 studs and the wheels have 4 then obviously you are going to have a problem.
I found a fairly decent stud pattern reference online, you will need to scroll down to find your vehicle.
2 – Overall diameter with the tyre
You need to make sure that once you have your new rims and the tyres on them, that the overall rolling diameter is similar to what your car originally is fitted with, otherwise you could encounter a myriad of issues. (e.g wrong gear ratio, tyres rubbing on guards etc)
3 – Offset
The offset of wheels is also important. The offset of a wheel is described as the distance from the wheels hub mounting surface through to the centreline of the wheel.
This is often the “unconsidered” dimension, however it’s a very important one. If the offset is too much different from the original the whole handling of the vehicle can be adversely affected.
If you want to measure the offset of your wheels this is how it’s done.
- Measure the overall width of your wheel (don’t take the numbers on it, as that is flange to flange)
- Divide this value by 2 – this gives you the centerline of the wheel
- Next measure from the mounting surface of your hub to the inboard flange, this is what is called your back spacing
- Subtract your centreline from your back spacing and that is your offset
Remember if in doubt, best not to do it, you don’t want to be stuck with a set of rims that not only doesn’t fit your car, but you have no idea of what car they will fit.