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      03-18-2012, 06:53 PM   #1
Calmwinds
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M sport - Is anyone digging the 18" more than the 19"

I kind of prefer the looks of the 18", anyone out there feel the same?
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      03-18-2012, 08:18 PM   #2
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Quote:
Originally Posted by Calmwinds View Post
I kind of prefer the looks of the 18", anyone out there feel the same?
Me.

Plus, 19's are just heavy and tires cost more.
If you live in an all season area, you'll need different tires or wheels/tires for winter.

There is not added performance benefit to 19's, on the contrary they take away some performance.
They are for looks imo.
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      03-18-2012, 08:39 PM   #3
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+1 here
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      03-18-2012, 08:41 PM   #4
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We have the 19" 403 wheels on offer with M-Sport in our market. Nice wheels by the way.
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      03-18-2012, 08:43 PM   #5
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+1 on the 18" M-Sport wheels. I would love to switch my 18" sport line wheels for those.
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      03-18-2012, 08:45 PM   #6
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I prefer the look of the 19's. Agree that the look is the main factor but given then staggered size and slightly bigger footprint on the road, I don't agree there is no performance impact. Sure, they may be slightly heavier but given that they are forged alloys - that's negligible. You are good either way but let's not knock the 19's!
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      03-18-2012, 09:09 PM   #7
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Quote:
Originally Posted by MacAttackBMW View Post
I prefer the look of the 19's. Agree that the look is the main factor but given then staggered size and slightly bigger footprint on the road, I don't agree there is no performance impact. Sure, they may be slightly heavier but given that they are forged alloys - that's negligible. You are good either way but let's not knock the 19's!
That's basically why I'm considering the 19" over the 18"
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      03-18-2012, 09:11 PM   #8
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No knock on the 19" wheels at all. Just prefer the look of the M-Sport 18s (400M) which have identical staggered tire widths as the 19s.
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      03-18-2012, 09:12 PM   #9
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Quote:
Originally Posted by Calmwinds
Quote:
Originally Posted by MacAttackBMW View Post
I prefer the look of the 19's. Agree that the look is the main factor but given then staggered size and slightly bigger footprint on the road, I don't agree there is no performance impact. Sure, they may be slightly heavier but given that they are forged alloys - that's negligible. You are good either way but let's not knock the 19's!
That's basically why I'm considering the 19" over the 18"
Glad to hear it. There's a reason why almost every car given to the major magazines to demo had the 19's and M-sport suspension....
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      03-18-2012, 09:45 PM   #10
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for sure, if the 18's would have been staggered it would have been even better, but the style of the 18's are awesome
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      03-18-2012, 10:11 PM   #11
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Quote:
Originally Posted by justinnum1 View Post
for sure, if the 18's would have been staggered it would have been even better, but the style of the 18's are awesome
M-Sport 18s ARE staggered
Quote:
Double Spoke (Style 400M) light alloy wheels, 18 x 8.0 front, 18 x 8.5 rear; 225/45 front and 255/40 rear run-flat performance tires.
Same staggered widths as the 19s, just slightly higher profile.
403M are 225/40 front and 255/35 rear
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      03-18-2012, 10:29 PM   #12
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Quote:
Originally Posted by pcbrew View Post
M-Sport 18s ARE staggered


Same staggered widths as the 19s, just slightly higher profile.
403M are 225/40 front and 255/35 rear
oh shit my bad lol. i thought we were talking about 18 sportline vs 19 sport line...lol

yea, m sport both rims look really nice
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      03-18-2012, 11:06 PM   #13
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Quote:
Originally Posted by pcbrew View Post
M-Sport 18s ARE staggered


Same staggered widths as the 19s, just slightly higher profile.
403M are 225/40 front and 255/35 rear
well if the m sport 18" is staggered as well, then that's what I'm getting.
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      03-19-2012, 12:00 AM   #14
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Point if clarification - I'm referring to the 18 and 19 inch non-M wheels.
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      03-19-2012, 06:48 AM   #15
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The 18"M sport wheels are just too small for the souped up body of the M sport F30 imo.
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      03-19-2012, 07:39 AM   #16
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I think I'll probably order the 18" M-Sport wheels, but just because I already have some nice Avante Garde CSL 19"s with summer tires from my E92 that I can throw on the F30 in the summer.
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      03-19-2012, 08:51 AM   #17
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Yep, I prefer the 18's too. I've never been a fan of the machined look that BMW uses on many of their M wheels. Plus, for the upgrade price of the 19's, you could get a good set of non RFT's for the 18s.
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      03-19-2012, 11:35 AM   #18
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Wonder if the touring also will have be staggered or if they will lose that as they usually do with the tourings.
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      03-19-2012, 12:30 PM   #19
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Quote:
Originally Posted by pcbrew View Post
M-Sport 18s ARE staggered


Same staggered widths as the 19s, just slightly higher profile.
403M are 225/40 front and 255/35 rear
this is confirmed - in the us, the 18s WILL be staggered 255s in the back. I'd take the 18's over the 19's - just heavier, more road nose, higher maintenance tires....no performance benefit unless u're planning on jamming monster sized brakes in there...
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      03-19-2012, 01:31 PM   #20
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Eh, stock wheels are all the same to me. I'll go with whatever is free since they'll be swapped out with better looking/fitting aftermarket wheels with non-RFT immediately and collect dust until I sell the car.
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      03-19-2012, 01:37 PM   #21
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I am actually doing the 18 not only do they look better. They will be staggered, less noise reduction, cheaper tires. All around better, imo.
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      03-19-2012, 02:52 PM   #22
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Quote:
Originally Posted by RPM90 View Post
Me. There is not added performance benefit to 19's, on the contrary they take away some performance.
They are for looks imo.
I haven't seen this mentioned this yet, but I always learned that the main performance benefit from larger-diameter wheels (with lower-aspect-ratio tires to keep the same overall diameter) is NOT because of the larger wheel size, rather it's because of the lower aspect ratio of the tires which results in REDUCED TIRE SIDEWALL HEIGHT. With reduced sidewall height, tires do less flexing and floating while cornering, for better stability and road contact.

Here are rough theoretical calculations:

The 18" 400M wheels have 225/45 front tires (225mm x 45% = 101.25mm sidewall height) and 255/40 rear tires (255mm x 40% = 102mm sidewall height).

The 19" 403M wheels have 225/40 front tires (225mm x 40% = 90mm sidewall height) and 255/35 rear tires (255mm x 35% = 89.25mm sidewall height).

So basically, the 403M tires have roughly 12mm less tire sidewall height than the 400M. That's more than a 10% difference, and enough to increase sidewall stiffness and improve handling significantly.

PERSONALLY, despite this significant improvement with the 19" 403M wheels, I still plan to order the 18" 400M wheels. Why? Because the same reduced tire sidewall height that improves handling also makes it much more likely that I will break a wheel in one of our many St. Louis, MO year-round potholes. Not to mention the endless spine jarring when I keep my car in "sport mode" all the time.

The bottom line is that even though I do faster cornering in my BMW than 95% of drivers, I don't need the "ultimate" capability. The 18" 400M wheels are plenty good enough.

And they look great.
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