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Old 03-28-2009, 05:39 AM   #1
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15 inch or 17 inch?

What are the pros and cons of the following two sizes i need to choose from:

15x6.5, 40+mm offset

or

17x7.5, 45+mm offset

*both sizes are for a rota slipstream
-my car is auto, not lowered


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Old 03-28-2009, 07:26 AM   #2
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That was my dilema as well. My 2007 SAP sedan came with 15" RSAs. Bought snow tires for 2nd winter. Put them on the stock aluminum wheels as I did not want steelies for winter. Original tires were still good so not sure I wanted to spend the extra on new summer wheels and tires.

I think 17s would look good but could not find any wheels I liked enough. Was also concerned about the extra weight and how it would change the car. Very happy with the 15s. Finally found a set of 15s I like and decided to go with those. Now just waiting for the snow to melt here in Winnipeg. Think I will use the $ I saved for a Steeda intake.
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Old 03-28-2009, 01:44 PM   #3
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agreed about the extra weight and how it might affect our cars....but what if they are lightweight wheels like the rotas? 17 inch rotas i think are still only about 16-17 pounds which is lighter still than 16" stock alloys. Do you think that will offset the issue of extra weight?
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Old 03-28-2009, 02:02 PM   #4
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right down to brass tax

15x6.5, 40+mm offset

Pro: less wheel tire weight/weight to move

con: you'll have less grip because it's only 6.5 inch's wide, you will also have alot of side wall flex whitch will have a delay if you deside to turn the wheel really quick


17x7.5, 45+mm offset

Pro: you will have more grip because it's 7.5 wide, you'll have less of a sidewall flex witch will have less of a delay when you turn the wheel.

Con: more wheel an tire weight/weight to move, You might run into problems with rubbing the strut.
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Old 03-28-2009, 03:04 PM   #5
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^^ that pretty much sums it up.

Since you arnt lowered you won't have an issue with rubbing
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