quick question when looking at widths on rims what is it they go by inches,meters etc...like 7.0,7.5 is a 8.0 rim a inch wider then a 7.0

 

Yep. The rims are measured in inches as far as I know. A 7 meter width rim would be 275.59 inches wide.

 

Yes, they are measured in inches. 7" is 1" smaller then the 8". Depending on how big you're going (17", 18", 20" or 22") the most choices will be found in the 17" x 7.5", 18" x 7.5", 20" x 8.5, and 22" x 8.5" or 9" with a +35 et (offset).