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0w40X1 · 12-24-2018, 05:55 PM

I bought my 14 s28i Msport with 18inch wheels to lower gear ratio 4%.

I got a little extra acceleration with 225/40r18 in Michelin PSS over the 225/45r18 Pirelli run flats.

I could have ordered 225/40r19, so yeah, they'll fit if proper offset.

12-24-2018, 05:55 PM	#5
0w40X1 Lieutenant 35 Rep 485 Posts Drives: 2014 BMW X1 s28i M Sport Join Date: Sep 2013 Location: West Texas iTrader: (0)	I bought my 14 s28i Msport with 18inch wheels to lower gear ratio 4%. I got a little extra acceleration with 225/40r18 in Michelin PSS over the 225/45r18 Pirelli run flats. I could have ordered 225/40r19, so yeah, they'll fit if proper offset.
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