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Changing Tire Size Calculator

2885 Views 3 Replies 4 Participants Last post by  Torch
Ever wonder how much your speedo is off when you change tire sizes.Here's a website that can tell you. Tire size calculator
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Hand held tuner can fix that.
Not sure how width makes a difference. I went from stock 225/55-16 to 315/35/17 in the back of my car... and it reads spot on. As long as the overall circumference is the same or close it wont really be too far off.
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