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      03-09-2018, 08:53 AM   #39
upstate650
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Drives: 2014 650xi Gran Coupe Msport
Join Date: May 2013
Location: The Hinterlands of Upstate NY

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2020 BMW M340xi  [0.00]
Quote:
Originally Posted by Armin_kh View Post
Thank you for the info. I'm planning to change my 373s to 343s. I have bought 2 different sets in the past 1 year and none of them worked well with my car. I just wanna buy the right size and enjoy the look of my car. I wanna buy a size that works well with 373s and 343s. Do you recommend 275/245 or 285/255?
do you want one set of tires that will fit both the 373 and 343? The 275/245 set will fit the 373 perfect (its the factory setup), but will be a bit stretched on the 343. the 295/255 setup will bulge a bit on the rear of the 373, but will fit the 343 perfect. For the reasons I stated in my post above, I wouldn't run 255/285 on anything.

If your intention is to make a permanent switch to the 343, but you will run the tires on the 373 wheels briefly until you get them, I would go with the 295/255 setup. The rears last approximately 8-10K miles depending on the tire and usage, so take that into consideration with the timing of your wheel and tire purchase.
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2014 BMW 650xi Gran Coupe Msport Black Sapphire Metallic on full black merino leather. 20" M5 343M wheels for summer, 20" 373 wheels for winter with Nokian Hakkapeliitta 8 studded snow tires. M6 CP exhaust with M6 Diffuser and ///M Performance carbon fiber finisher. Mission Performance stage 1.5 and transmission tune.
Appreciate 0