Quote:
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Originally Posted by ///Chase
Quote:
Originally Posted by b1aze
Isnt 225/40/19 a really tall tire? Stock size is 215/40/18. Thats a 5% difference in rolling diameter.
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nah mate thats the width, the 40 is the sidewall height. |
Sidewall height is a ratio. A % of the width. A 245/40/19 has a sidewall height of 40% of 245mm, which is 98mm ( or 3.82") over the wheel diameter (19"). 2x sidewall height + wheel diameter gives you rolling diameter.
Google "tire diameter calculator" for further confirmation.