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Old 02-21-2013, 11:44 PM   #8
Scooby Newbie
Member#: 219225
Join Date: Aug 2009
Chapter/Region: Tri-State
Location: New York City
2013 Impreza
Dark Grey Metallic


Originally Posted by averagewhiteboy View Post
Numbers explained:

Wheel height and width, 17x7 17x7.5 17x8 etc. the 17 is a 17 inch wheel. The 7, 8 etc is the width.

Offset, +38 +52 etc. Has to do with the hub backspacing. So how fat the hub is in relation to where the wheel spokes and such are. This part is the confusing one.

Tires, 225/40/18. 225 being tire width. 40 being tire height. 18 being wheel size.
Okay so the 17x7 I understand, thanks for explaining.
Offset, I'm confused. I'll research on that.
But the 225/40/18, I thought that the tire width was 7 and the height was 17? Isn't the size of the wheel 17x7? Why is it 18?
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Last edited by subaru604; 02-22-2013 at 12:05 AM.
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