Hello,
The rim width (the first number with the J letter is the width in inches) can be also a problem, as a wider wheel can touch the body or suspension elements especially (but not only) on the front.
The central bore must be the same (or bigger, plastic adapter rings are available).
And the most important, the ET parameter (offset) telling how the center of the rim is displaced from the base (the center part that you screw on the wheel hub). If the new rim would be too close to the hub, special aluminium / steel spacers are available and possible to install. This is quite well explained here:
What is wheel offset? Can you fit wider or narrower wheels than the ones you currently use? Check our wheel width and offset guide to find out.
www.oponeo.co.uk
The extra inch of the rim diameter can be balanced by the tire size (lower profile).
There are online calculators that calculate the correct tire size, as it should be more or less the same as on the original wheels (up to 2% difference is possible), because it impacts the speed reading.
Taking the original size 135/80 R13 (which I've found on the internet) I've calculated best possible alternatives for 14" rims:
The tires width should also be appropriate to the rim. For the 6 inch rim the tire should have the width between 175 and 205 mm. So the third one seems like the best size.
And one more thing to note: if you're using the car offroad, beware that the tire profile (difference between the wheel and the rim diameter) would be smaller than on the original one. It will definitely impact the handling offroad.
On the original tire the profile it's 10,8 cm, on the 'best one' taken out of the calculator (185/50 R14), it's 9,25 cm. Not a huge difference though
