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BMW 3-Series (E90 E92) Forum > BIMMERPOST Universal Forums > General BMW News and Cars Discussion > BMW Plans Rollout of Carbon Fiber Wheels and More CFRP Components



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      02-21-2014, 08:08 AM   #89
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      02-21-2014, 08:37 AM   #90
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The GXX chassis BMW's can't come soon enough!
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      02-21-2014, 08:48 AM   #91
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Quote:
Originally Posted by TheBingoBalls View Post
The GXX chassis BMW's can't come soon enough!
The first GXX Concept Car will Premiere at the Auto China 2014 in Beijing.
The first GXX model to be shown will be a luxury concept model to reflect ever constant changing trends and progression in the luxury segment.
A concept as groundbreaking as what was shown in Shanghai 2007. But reflective of market needs and current innovation.
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      02-21-2014, 09:05 AM   #92
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God I can't even imagine curbing one of those wheels, I would die.
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      02-21-2014, 09:55 AM   #93
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that steering wheel is just amazing
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      02-21-2014, 09:59 AM   #94
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Quote:
Originally Posted by SCOTT26 View Post
The first GXX Concept Car will Premiere at the Auto China 2014 in Beijing.
The first GXX model to be shown will be a luxury concept model to reflect ever constant changing trends and progression in the luxury segment.
A concept as groundbreaking as what was shown in Shanghai 2007. But reflective of market needs and current innovation.
thx scott, that's some great news! so let's wait for Auto China 2014 in Beijing...
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      02-21-2014, 10:37 AM   #95
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Quote:
Originally Posted by Chuckbilodeau
thats like $6-7,000 right there. 2 wheels.
I've had these on my bike since 2010. Nowhere near $6k. A decent new set (2 wheels) runs between $1500-$2500

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      02-21-2014, 10:59 AM   #96
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Quote:
Originally Posted by S3RI35 View Post
I've had these on my bike since 2010. Nowhere near $6k. A decent new set (2 wheels) runs between $1500-$2500

id love to see whats on the inside of those "blades". Setting CF is just like fiberglass.
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      02-21-2014, 11:09 AM   #97
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Originally Posted by S3RI35 View Post
I've had these on my bike since 2010. Nowhere near $6k. A decent new set (2 wheels) runs between $1500-$2500
Yeah, but the Mavic's priced in that range are 50% heavier than the Lightweights and have an aluminum rim glued to the carbon shell. Not nearly the same thing. Mavic's full carbon wheels are $4k and still aren't nearly as light as the LW's. ENVE gets closer, for less money.

The Reynolds RZR wheels are probably the most comparable in terms of weight, but they're still $4,500 and have had some lateral stiffness issues that the LW's tend not to.
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      02-21-2014, 11:26 AM   #98
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In my other life as a motorcycle rider, I get on the Ducati forums a lot and guys have been using these wheels for years now. I haven't read of any failures yet:



A set of these will run you about $3,800.
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      02-21-2014, 02:31 PM   #99
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I want that steering wheel!
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      02-21-2014, 02:32 PM   #100
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game changer
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      02-21-2014, 02:50 PM   #101
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Quote:
Originally Posted by HuskerFan85 View Post
id love to see whats on the inside of those "blades". Setting CF is just like fiberglass.
Blades on these are full carbon fiber. No problems whatsoever. Here's an example of the manufacturing process for another brand... it's pretty cool stuff considering how pliable the raw sheets are.



Quote:
Originally Posted by Red Bread View Post
Yeah, but the Mavic's priced in that range are 50% heavier than the Lightweights and have an aluminum rim glued to the carbon shell. Not nearly the same thing. Mavic's full carbon wheels are $4k and still aren't nearly as light as the LW's. ENVE gets closer, for less money.


The Reynolds RZR wheels are probably the most comparable in terms of weight, but they're still $4,500 and have had some lateral stiffness issues that the LW's tend not to.
point taken, but the technology is proven and has been around long enough to build a reputation under demanding conditions. Your racing tubular examples are of course on the high side of the cost curve to get the true benefits of weight reduction, but you're not gonna use them every day (and are still not $6000+). The torsional rigidity and responsiveness from a midrange clincher wheel is however beneficial year-round in a variety of conditions.

Let's not mention the first-gen R-sys mishaps to the community.

Mods: Apologies for derailing thread.
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Last edited by Doctor///M; 02-21-2014 at 02:59 PM.
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      02-21-2014, 03:10 PM   #102
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Quote:
Originally Posted by S3RI35 View Post
Let's not mention the first-gen R-sys mishaps to the community.

Mods: Apologies for derailing thread.
Haha! I nearly fell for a set of those tubular carbon spokes. Seems like the newer ones don't explode, but it still seems like a silly idea.

I do agree though that carbon is proven in the cycling industry, I trust my carbon frame, bar and wheels as much or more than equivalent aluminum stuff.
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      02-21-2014, 06:07 PM   #103
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Quote:
Originally Posted by SCOTT26
Quote:
Originally Posted by TheBingoBalls View Post
The GXX chassis BMW's can't come soon enough!
The first GXX Concept Car will Premiere at the Auto China 2014 in Beijing.
The first GXX model to be shown will be a luxury concept model to reflect ever constant changing trends and progression in the luxury segment.
A concept as groundbreaking as what was shown in Shanghai 2007. But reflective of market needs and current innovation.
We know the GXX 7er is going to go on a diet, which means the BMW is likely to extensively incorporate CFRP, are other cars going to have extensive use with CFRP or will it be a slow process/application like the FXX M3/M4?
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      02-22-2014, 10:09 AM   #104
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Sploosh!!!!

Quote:
Originally Posted by fravel
I'm an engineer at a test house that specializes in mechanical testing of carbon fiber and composites for the aerospace industry. I can't talk any hard numbers but I will say that I think all the naysayers will be quite surprised when these components come to market. The carbon fiber and composites industry has come a long, long way. CF doesn't shatter like glass, and it typically offers phenomenally better properties than metals (depending on the application).

Regarding curb damage, should you manage to hit them hard enough to get all the way through the clear coat/finishing resin, you would still only be able to damage 1-2 plies worth of carbon at the most. The damage could easily be filled back in with resin and polished back to shine, sure the top weave might be slightly imperfect but it will be very hard to notice. These wheels will have a very large ply count and structural integrity will be unaffected. You'll break suspension bits before you fail one of these wheels.
CF it all!!! Suspension, drivelines all of it!!!!
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      02-22-2014, 12:42 PM   #105
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All this CF stuff is neat....but I really think BMW should figure out how to make a fuel pump, injectors and such work together first. Once they can make an even half way reliable vehicle, then spend some R&D on CF.
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      02-22-2014, 07:52 PM   #106
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bring it!
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      02-22-2014, 08:02 PM   #107
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Quote:
Originally Posted by Malibu1 View Post
All this CF stuff is neat....but I really think BMW should figure out how to make a fuel pump, injectors and such work together first. Once they can make an even half way reliable vehicle, then spend some R&D on CF.
They did, just not in '07 with the first year N54
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      02-23-2014, 07:27 PM   #108
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Sick - reducing unsprung weight with cf wheels on the m cars would be very cool!
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      02-24-2014, 04:40 AM   #109
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Quote:
Originally Posted by lasovan View Post
thx scott, that's some great news! so let's wait for Auto China 2014 in Beijing...
The car is to be the BMW X7 with V12.
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      02-24-2014, 02:22 PM   #110
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