|
|
|
10-18-2007, 05:20 PM | #1 |
Bimmer Freak
3
Rep 25
Posts |
Carbon Fiber wheels, are they brittle?
I first saw these Dymag wheels on the Koenigsegg then saw them available for high end Euros on www.rennworx.com. Carbon fiber outer rim and magnesium spiders in the center.
Love the wheels and they will ultimately be the most superlight. But carbon doesn't bend, so I am wondering if these will hold up to normal daily city use with the occasional pot hole or construction hole cover? Any thoughts? An article on the Koenigsegg noted a crash when the test driver hit a rough edge of the road, then a construction cone and shattered the wheel. Also saw a shattered wheel from a racing Porsche on another forum. |
10-18-2007, 05:39 PM | #2 | |
Enlisted Member
1
Rep 44
Posts |
Quote:
These wheels are the best you can buy performance wise, but they are give or take 2500 PER wheel... good luck, but id rather spend the 10 thousand dollars else where.. Travis |
|
Appreciate
0
|
10-18-2007, 06:21 PM | #5 |
Bimmer Freak
3
Rep 25
Posts |
Yeah, no kidding! Thanks for the price update! I would go as high as $1500 a wheel for the performance but $2500, no way. Guess I'll have to keep looking at the OZ Superleggeras then (very reasonable price for the weight) or the SSRs which are slightly lighter and still around $400 - $500/wheel.
|
Appreciate
0
|
10-19-2007, 02:44 PM | #9 |
Private First Class
6
Rep 106
Posts |
Take this into consideration, you gonna scratch or bend a rim eventually. the carbon fiber will go from all to nothin in no time plus youll likely damage other parts when the wheel fails suddenly. I would think it wont be easy to repair a carbon fiber wheel if even possible so that mean another $2500 to buy a replacement. Unless they are gonna be makin u money by helpin u win races id say stay away from them.
|
Appreciate
0
|
10-19-2007, 02:56 PM | #10 |
Private
1
Rep 91
Posts |
I can give you a guy's screename on M3f.net that has a set, if you're really serious about them.
He's hard to get sometimes... does alot of racing on weekends. Just pm me, and I'll pass his screename along.
__________________
135i 6/M
Jet Black/Coral Red Premium Package Sport Seats Aluminum Trim Maybe... we'll see how it compares to the M |
Appreciate
0
|
10-22-2007, 11:28 AM | #11 | |
Stay a while and listen...
21
Rep 375
Posts |
Quote:
When a CF driveshaft fails, it is designed in a way that causes minimal to no damage... If a steel driveshaft failed it could cut your car in half! However this point is kinda silly. You have a point when you say 'when the wheel fails'. It is a given that the failure rate for CF wheel is much higher.. + When was the last time you heard about a forged aluminum 'failure'? :iono: |
|
Appreciate
0
|
10-22-2007, 04:32 PM | #12 |
Private First Class
1
Rep 171
Posts |
These are primarly used on racecars for a reason. If/when the wheel bends/fails, you lose the race. If this happens on the street, you could lose a lot more.
Just not worth the money for a daily driver wheel. If its a trackday car or show car, then by all means. Get a nice forged aluminum wheel and call it a day. Carbon/ceramic discs would be another way to drop some unsprung mass. |
Appreciate
0
|
10-23-2007, 12:13 PM | #13 | |
Private First Class
6
Rep 106
Posts |
Quote:
|
|
Appreciate
0
|
10-23-2007, 05:08 PM | #14 | |
Bimmer Freak
3
Rep 25
Posts |
Quote:
The Brembo metal big brake kits run into the $2K -$3K range. Carbon ceramic brakes would be around $10k. I am doing some searching to see if such a retro fit kit exists for anything other than Porsche, Lambo, or Ferrari. |
|
Appreciate
0
|
10-24-2007, 04:31 AM | #15 | ||
Stay a while and listen...
21
Rep 375
Posts |
Quote:
Quote:
|
||
Appreciate
0
|
10-24-2007, 09:47 AM | #16 |
Bimmer Freak
3
Rep 25
Posts |
Actually, found a carbon disc big brake kit from Stoptech. The full on kit is $15K, BUT if you already have a Stoptech big brake kit ($3K) you can "upgrade" to carbon discs for $10K. So, it seems the thing to do is buy a regular big brake kit then add the carbon discs. |
Appreciate
0
|
10-24-2007, 12:14 PM | #17 | |
Stay a while and listen...
21
Rep 375
Posts |
Quote:
|
|
Appreciate
0
|
10-24-2007, 01:56 PM | #18 | |
Enlisted Member
1
Rep 34
Posts |
Quote:
|
|
Appreciate
0
|
10-24-2007, 03:25 PM | #19 |
Bimmer Freak
3
Rep 25
Posts |
Sorry zba857! I should have included these in the reply. here you go! Enjoy the reading!
Company Announcement http://www.stoptech.com/company_info...peedster.shtml Weight of the discs http://blogs.edmunds.com/Straightline/1713 Cost of full kit (for Corvette) http://forums.corvetteforum.com/show....php?t=1804410 And, the piece de resistance, from our brothers over @ m3forum http://www.m3forum.net/m3forum/showthread.php?t=177624 |
Appreciate
0
|
10-24-2007, 06:54 PM | #20 | |
Banned
23
Rep 1,356
Posts |
Quote:
CF = brittle..? |
|
Appreciate
0
|
11-12-2007, 09:00 AM | #21 |
Banned
2
Rep 76
Posts |
There were attempts in the past to make a composite wheel using CF barrels. It didn't work so well in larger "heavy street car" sizes.
Its come back this year for SEMA. Its a "bling thing". Think along the lines of "spinners" and "LCD monitor wheels". :biggrin: |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|