Quick question about 18x10 wheel offsets

[HoustonGT]

Hey guys and gals, just had a quick question for yall about wheel offsets.
Im getting a new set of wheels (won't say what kind cuz no one has them yet ), but they are 18x10 out back and i have 2 offsets to choose from. The bolt pattern is of course 5 x 4 1/2 and the 2 available offsets are
+41mm (7 1/8 backspacing) and +30mm (6 3/4 backspacing). Which one would look best and what is the difference. I don't really understand the full concept of how wheel offsets work. Thanks

 

[HoustonGT]

BUMP BUMP BUMP. Help a brother out!

 

[V_Eight]

I run a 20 offset, it is very close to ideal. The lower the number, the more "out" it will sit.

These are my wheels in an old finish on my old car, but it shows how well the rears fill.

 

[HoustonGT]

I run a 20 offset, it is very close to ideal. The lower the number, the more "out" it will sit.

These are my wheels in an old finish on my old car, but it shows how well the rears fill.

So you think the 30mm would sit a bit better and fill the fender out a bit more?

 

[V_Eight]

So you think the 30mm would sit a bit better and fill the fender out a bit more?

20 is ideal for that size on these cars. 30 will be a bit far in, you may even want to run a spacer if you insist on that specific wheel.