I'm about to but some new XD Rockstars for my new FX2. I plan on putting Nitto Trail Grapplers in 305/55/20 or Cooper Zeon LTZ in 275/60/20 with a leveling kit. Now my question is, which size rim do I buy & does the tire determine the size?

1. 20x10 -24 offset

2. 20x8.5 +10 offset

3. 20x8.5 +35 offset

4. 20x8.5 +50 offset

These specs are directly off the KMC/XD website.

I would like them to be flush or stick out slightly, but nothing extreme.

Thanks!

 

What is the backspacing on those?

 

This is from 4wheelparts.com:

1. 20x10 has 4.56 backspacing

2. 20x8.5 has 6.13 & 5.14 backspacing, depending on the offset

Thanks for your help!