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Old 01-28-2012, 01:21 PM   #1434
vision.dynamix
Scooby Guru
 
Member#: 139955
Join Date: Feb 2007
Chapter/Region: NESIC
Location: Boston
Vehicle:
2015 Subaru STI
17Forester / 18Crosstrek

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Correct. The second number is called the aspect ratio. It is a percentage of the section width. It refers to the sidewall. When calculating the total tire height, it's important to remember you have TWO sidewalls, one above and one below the wheel.
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Last edited by vision.dynamix; 01-28-2012 at 01:29 PM.
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