06-17-2013, 06:17 PM | #1 |
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OEM Wheel Widths
I've just discovered something a bit strange about F06/F10/F12/F13 wheel widths.
In the official BMW M6 pricing guide, the 343M wheels are described as being 20x9.0 and 20x10.0 (Part Nos 36112284450 & 36112284451). The 433M standard GC wheels are described as being 20x9.5 and 20x10.0 (Part Nos 36112283402 & 36112283403). However, when I phoned the parts dept of my local BMW dealer, their system shows the respective front and rear wheel widths of BOTH the 343M AND 433M styles for the F06 GC/F12/F13 applications as being 20x9.5 (ET31) and 20x10.5 (ET19). I wonder which of these sources contains the correct information? {As an interesting aside, for the F10 M5 application the front and rear 343M wheels widths are 1/2" narrower @ 20x9.0 (ET34) and 20x10.0 (ET34), with Part Nos 36112283999 & 36112283401, but possibly with a different Part No (36112283400) for the F10 M5 fronts when equipped with M Carbon Ceramic Brakes? (but still 20x9.0 and ET34)} |
06-17-2013, 11:42 PM | #2 |
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Will the M6GC specific wheels fit on the F10 M5? I would assume so as I saw both 343 and new M6GC wheels on the Gran Coupes at COTA.
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06-18-2013, 11:05 AM | #3 |
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Not sure if this will help but when I had both my stock sets of M5 and M6 wheels together, the M6 wheels were 1/2 inch wider front and rear. Which tells me that the M6 is 20x9.5 and 20x10.5- I have an F13.
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06-18-2013, 11:14 AM | #4 |
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Ah, thanks Vic. Funny, they don't look nearly as good as I'd anticipated on the F10.
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06-18-2013, 11:49 AM | #5 |
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I dunno Rob I kinda like them! I wonder if they are any lighter than the 343M's though? They look heavier to me.
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06-18-2013, 11:56 AM | #6 |
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and i forgot to clarify I have 343's on both
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06-18-2013, 05:57 PM | #7 |
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To add to the discussion, the new 601M wheel option with the Competition Package is wider for both front and rear (according the the M5 ordering guide):
Front: 20x9.5, 265/35 R20 Rear: 20x10.5, 295/30 R20
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06-19-2013, 12:33 AM | #8 |
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Does anyone have the Part Nos and offsets for these 601M wheels?
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06-19-2013, 12:41 AM | #9 | |
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Quote:
The 343M F10 wheels are indeed 1/2" narrower and have different Part Nos than the 343M F06/F12/F13 wheels. As mentioned above, the fronts are 9x20 ET34 with Part No 36112283999. Rears are 10x20 ET34 with Part No 36112283401 |
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06-19-2013, 12:59 AM | #10 |
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According to my calculations, when retrofitted to an F10 M5, the 433M REAR wheels will be about 21.35mm/0.84" farther outboard versus their standard issue 343M F10 M5 rear counterparts, whilst the 433M FRONT wheels by comparison will only be 9.35mm/0.36" more outboard than the normal F10 M5 343M front wheels.
Last edited by VintageFerrari; 06-19-2013 at 08:44 PM.. |
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