18x7.5 with 4x100 or 4x114.3? how bout the offset? what does it have to be? thanks!

 

18 x 7.5 with 4 x 114.3 lugs; 42 mm offest works perfectly. I also recommend 225 tires.

 

what if the offset is larger or smaller than 42? how will that affect the tire/wheel? also, won't 225 tires on an 18" rim be larger in diameter than a 215? thus, it will affect the ride to a certain degree right? thanks!