Sorry for the late response guys...so im guessing the number 6 is the number of bolts and the 135 is the measurement in millimeters from center to ceter bolt hole?

And what does the "30+" mean? As you can see, I know nothing about wheels and tires...

 

I measured the backspacing as wandell instructed and it looks to be right at 6.7-6.75...so I take it im good on backspacing?

 

The backspacing sounds perfect.