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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Wheels and Tires > F30 M Sport, 403 19in, Larger Tire size question
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      04-24-2013, 04:55 AM   #1
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F30 M Sport, 403 19in, Larger Tire size question

I have a 2013 F30 335i Msport, EBII, 6 spd man, #403 19in mags, factory stock Run Flat Bridgestone Potenza, front 225/40-19, rear 255/35-19.
My thinking is when they are warn to go with the Michelin Super Sports, NON run flats. I would like to bump up the width of the tires, not sure if I should do front and rears or just the rears. I was thinking of maybe going with either 265/35 or 265/30 in the rear, not sure if they fit on the stock 403 rims. Is it possible to go as large as 275/30? or bigger? Would be nice, look like a M3.
Would appreciate your ideas. Thanks
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      04-24-2013, 02:49 PM   #2
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you could but it may give the tire a bulging appearance since the tire is wider and the wheel width is unchanged.
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      04-29-2013, 09:47 AM   #3
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check this table, the 403M rims are 8.5 so the maximum is allready the 255!!
for 275 tires, you need to have minimum 9.5 rims...

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