205/50-17 vs 225/45-17

mfm22

New Member
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new york
#1
Looking for new tires . Currently have stock tires =205/50-17 run flats

In manual [2005 330 xi] there is listing for both sizes . What are the pros & cons of these 2 dif sizes .

Will the wider tire fit on stock rim?
 

Big Daddy

Senior Member
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PNW (Left) Coast
#2
Yes they should fit with no problems, in fact the 225/45-17 is a plus size option for your car. In fact all these sizes are listed as plus sizes for your car:
Plus Zero
215/45-17
215/50-17
225/45-17
235/45-17
 
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Bay Of Islands, NZ
#3
225 45 17 is the correct size if you wish to go to a wider tyre. How wide are your wheels? If you are not sure, I would suggest that the wider tyre may look a little chunky on the rim, but the only way to find out is try it.
 

mfm22

New Member
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new york
#4
Got the car last week with 17k miles . its 330 xi all stock .

I was wondering if changing to this size affects height ? which will affect speedometer . But 45% of 225 = 101.25

50% of 205= 102.5 not much difference or is it?
 


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