Got my flashpaq a few weeks ago and I set my tires for 34" since that was the true measured size. However it seems like I'm going slower than most people even going slightly over the speed limit. So do I set it to the actual size? Or set it to 35" since that's what is advertised. Thanks for any help.

-Aaron

 

If you are wanting to drive faster I suggest you use the pedal on the right. . But seriously, I have my tire size set to what the true measurement was that way my speedo was as accurate as possible. . I suggest the tow tune

 

Measue from the ground up to the center of the wheel (or centercap). Multilpy by two and input that and you should be dead on. You have to account for the weight of the vehicle making the tire "sag" some.

 

Also, using a gps can help you to fine tune your adjustments to get a more accurate reading

 

This... Even an I phone app adjust accordingly. I had to adjust 1/2in down from true measurement to be on.

 

Awesome. Thanks for the info guys.