hello everyone. need help on installing or selecting new wheels for my ride. im not sure if you guys have heard of this model as its only in asia that the model was realesed. its a toyota revo. not a rav4 but a revo. anyway, the offset thats stamped on the mag wheels is 27. is there a rule of thumb which states how much higher or lower you can go from the stock offset? the stock wheels are 195/75/14. im thinking of going to a 205/55/16 or a 215/50/17. any suggestions or comments would be greatly appreciated.

thanks in advance!