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Discussion Starter · #1 ·
I know the answer to this is yes,as it fits the borderline criteria of having 7" as the minimum width for 225/45. But then again I been reading some that says 7.5" should be the minimum...

So i really wanna know for those who did it, how is the feedback in handling/mileage/power?

I would love to stick back to 205/50 IF only there are a variety of tyre choices in this size range for me to choose from, but unfortunately, there isn't much from where I come from. :sad 1:

I currently using Yokohama C-drive 2 but I think the sidewall is too soft for my liking (compared to the OEM Toyo Proxes). I am planning to change to Bridgestone Potenza RE002 of which only 225/45 is available.
 

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Black Mica
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7.5 / 8 is your best bet. mph speed my change slightly but it wont effect anything drastically.
 

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The overall diameter of the tires are nearly identical, so your speedometer won't be off at all. Running wider tires will almost be default allow for better traction. This is simply because of the increased tread width of a 225 over a 205. There should be plenty available, afterall the BMW 3SERIES (prior to running runflat tires) had commonly used 205/50R17.
 

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Discussion Starter · #8 ·

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225/45/R17s here as well, on my second set of tires this size with no problems to report.
 

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Or maybe I'll consider putting 215/45/R17 instead, although my speedometer will run more off than 225/45.

It is weird, according to the tyre calculator, a 225/50 tire requires less rim width (min 6") than a 225/45 (min 7.5"). Is this something to do with the sidewall thickness? Tyre Calculator - Alloy Wheels - Specialist supplier of alloy wheels and tyres packages, Fast Delivery, Buy Online.
Sort of, tires with a higher profile will have more flexibility than shorter tires. However, I would put too much in what width that tire calculator says. If you want to know what the recommended wheel widths for the tires you plan to use, refer to the tires specifications for recommended width ranges.
 

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zoom~
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Not on 225/45, but rather 215/45....they were cheap.., speed and odo not effected much.

Anyways, i can attest on handling, wider is better.

As well, different brand has different width as shoes, so check before you buy. Touring tires tend to have the natural sidewall bulge, ultra perf all season tend to be flush, conti dws tend to be on the narrow side.
 
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