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SportTrac Discussion
Wheels, Tires & Brakes
Adrenalin Wheel Downsize
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<blockquote data-quote="Lionel Fraser" data-source="post: 1012711" data-attributes="member: 70092"><p>Tire size ordering should not be 265/65 if want to keep speedo cal. correct. The stock is 255/50-20: 255x50% x 2 divided by 25.4 + 20 = 30. inches, 265x65% x 2 divides by 25.4 + 18 = 31.5. Your speedo will be slow by 5%. Not a lot but ,255/60-18 would be the same.</p></blockquote><p></p>
[QUOTE="Lionel Fraser, post: 1012711, member: 70092"] Tire size ordering should not be 265/65 if want to keep speedo cal. correct. The stock is 255/50-20: 255x50% x 2 divided by 25.4 + 20 = 30. inches, 265x65% x 2 divides by 25.4 + 18 = 31.5. Your speedo will be slow by 5%. Not a lot but ,255/60-18 would be the same. [/QUOTE]
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SportTrac Discussion
Wheels, Tires & Brakes
Adrenalin Wheel Downsize
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