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Did anyone else notice the size tires on the Sport Pack for the Cooper in the USA (per MINIUSA site)? 225/55R16.

The tires on the 17" wheels for the Cooper S are only 205/45R17???:confused:
 

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There is also another possibilty. If I recall correctly the aspect ratio of the tire also has a bearing on it's actual overall width. I believe it is possible that a 205 45-series tire is the same functional width as a 225 55-series tire.

Check out this page for more info:
http://www.dunloptire.com/tt101_sizing.html

Hope this helps, and it still could be a misprint.
 

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mblommel said:
There is also another possibilty. If I recall correctly the aspect ratio of the tire also has a bearing on it's actual overall width. I believe it is possible that a 205 45-series tire is the same functional width as a 225 55-series tire.

Check out this page for more info:
http://www.dunloptire.com/tt101_sizing.html

Hope this helps, and it still could be a misprint.
Actually, aspect ratio determines the height of the sidewall, which contributes to the overall diameter of the wheel and tire package.

The MINI USA site 225/55 figure is a typo ... it should be 195/55. A 225/55 tire on a 16" wheel would mean an overall diameter of 25.74" ... which would make the speedo and who knows what else inaccurate. Using the 175/65-15 overall diameter of 23.96" as a base, 24.75" (+3%) is probably as high as you'd want to go. A 225/45-16 combination would have a 23.97" diameter, but whether you could get that sized tire on a 6.5" rim and whether the tire would rub on the struts or inside fender well are questions yet to be answered.
 
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