Questions about tire size and custom settings.

[JWBFX4]

Originally Posted by rednoved

Ok. So my new tires should be here tuesday. I am going to a 305/65/18 BFG AT. My current custom tune should be for 275/65/18, which means I need to make some adjustments. What all do I need to adjust in the custom options, besides the tire size? What values automatically change as soon as I open the custom settings option?

Nice choice on the tires. When you open the custom settings you will want to change the tire size and then confirm that the gear ratio is correct. Some times this defaults to a false place holder.