Will 20" rims fit a mazda 6????

that is almost an absolute NO. The Mazda 6 has a very high offset, and because of this it is hard to find aftermarket rims to fit. In fact, very few 18's fit without rubbing issues. Some people have been able to fit 19's, but that is with rolling the fenders all the way and still a high risk of rubbing. You may be able to fit 20's on a Mazda 6, but it would only be practical for show, not for road use.

I have 20" rims on my 6 No problem Had the rear fenders cut then rolled...Cruser Alloy 20 with Proxy 4 Rubber

i wouldn't want to slow down my car like that, but it probably looks good

Looks realy good and to make up for the slight loss in low end take off N20 will work everytime ZEX wet is the way to go

what's your offset and width?

THIS THREAD IS WORTHLESS WITHOUT PICS

Not that I know how to post them

You asked for it...Cruiser Alloy 20" Chrome with Proxies 4 225/35/20

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you have no rubbing issues? did you roll your fenders?

Didnt roll the rear fenders had them cut clean and went with G20 Shock to Dampen the bounce