Are my wheels factory?

[Matanzas]

Hey folks, new to the forum and new to BMW. I just bought a 2018 F83 Competition and I'm trying to learn all I can. Does anyone know if these 19" wheels are factory? I'm trying to determine the max tire size front/back for a future upgrade.

[jaylazy2020]

They look like the standard 19s that were on the non competition version since its launch in 2014/2015.

I actually preferred them over the 666 20s initially and they will give a better ride quality.

[N1rve]

Originally Posted by Matanzas

Hey folks, new to the forum and new to BMW. I just bought a 2018 F83 Competition and I'm trying to learn all I can. Does anyone know if these 19" wheels are factory? I'm trying to determine the max tire size front/back for a future upgrade.

They look factory to me. They are the black 437M wheels. I recommend 265 35 R19 and 285 35 R19.

[M3SQRD]

They are oem 437M which were an option on Comp package cars. Originally they only came with 666M but in 2018, I think, they made the 437M a no-cost option.

Your wheels are 19x9et29 and 19x10et40. The max FUNCTIONAL size tires are 265/35 front and 285/35 rear. Wider will fit but it’s been shown by many different sources (videos and articles) that wider tires on a narrower wheel does not increase performance and in most cases it reduces performance. Just do a quick search and you’ll find test results from reputable sources.

EDIT: Here’s one article discussing tire width vs. wheel width (tons more out there):

https://grassrootsmotorsports.com/ar...always-better/

[Matanzas]

Been busy the last couple days but wanted to just say thanks for the great info. I'll be going 265/285 for sure when is time for new rubber.