i am looking at getting a 35x12.50 tire. if i put the tire on an 18'' wheel or a 20'' wheel would that affect the height of the tire at all or affect the width . the wheels am am looking at are both 8.5'' wide and same offset but one is 20''and the other is 18''. would there be any difference. thanks

 

No, A 35 " tire is a 35" tire. Same with the width, 12.50 is 12.50. There may be slight variations, especially between different manufacturers, but in general, 35 is 35.

 

Right.

 

The only things to keep in mind are:

1. Price...Generally a 20" will be more expensive than a 18" tire.

2. Sidewall flex... If you're gonna offroad it, you want as much sidewall flex as possible to take the beatings of off road driving.