jrcart

I just thought I would post up a couple of pictures of my rear Dymags to see if anyone else has heard of or seen this problem with Dymags. As most of you know the wheels were bought new in February and I have put about 2500 miles (mostly road/street) on them. It appeares that were the spokes get bolted to the barel there must be some movement that is causeing th eCF to deteriorate. I am almost affraid to drive on them anymore becasue I know CF can suffer severe failure if the layers are compromised in this way.

jrcart

More pics

UGOTMOPPED

Reach out to Dynamag asap to get that taken care of..all that money for wheels and they better warranty that crap.

nlpamg

don't know if you know about this, but check it out:

http://www.6speedonline.com/forums/9...s-quality.html

boohooramblers

That's rather disturbing to read about - that is completely unacceptable (especially given the price of those rims).
What you described is the type of thing that would only be expected of e-bay knock-off crap.

Hold Dynamag's feet to the fire and good luck with getting this resolved.

SeeKlasse

if you dont feel safe driving on them you can just sell em to me

wait... dont you have like a 11 inch rim in the back?

MACHC5

Jim,

Be careful buddy, and thank god you found the problem.
Was the car driving strange, did you feel something..?

MachC5

jrcart

I did not feel anything, they feel normal. I first noticed it in a photo another MB World member posted a week or two back in the 211 E class section of this forum in a thread titles Pics from Hot Import Night Event...or something along those lines. I even made a coment at that time about the person that detailed my car needed to be shot because they left wax all over my wheels. It was not until this past Sunday when I was giving my car a good wash and wax that I discoverd that it was not wax but it was actual damge to my wheels.

I have contact Evosport because that is who I bought them from and they are already on it with Dymag. I hope Dymag does the right thing, because although I drive my car hard, Dymag markets these wheels to people just like me. I take very good car of my car and for this to happen with under 2500 miles on the wheels is a shame. I know by having these wheels on my car plus all the press from the magazine article has resulted in countless sets of wheels being sold. If they don't do the right thing they are going to regret the negative press I give them on every automotive board on the internet.

So before jumping to any conclusions I'm going to wait it out a few days and give them the benifit of the doubt that they will do the right thing....I'll keep you all posted.

Jim Brady

Jim,
I'd contact the distributor Wheel Enhancemnt they are super about correcting wheel issues.

FWIW, Dymag is changing the alloy composition of the wheel centers to a higher aluminum content it avoid flexing as some owners have reported dronning noise at speed. I don't know if that's the cause of your wheel problem but it is a more direct route.

Keep us posted as I'm about to pull the trigger on the wheels.

Jimmy

blackbenzz

Damn that sucks! Ever hear of Weds Sport new full c/f wheels? They weigh 6lbs. I dont know how safe that can be.

Murtaza

Hope you can get this resolved with dymag jrcart.

6lb wheels

suicidal4life

Interesting. I noticed it in those pics as well. I've never seen a set of Dymag's up close so I just assumed it was epoxy or something to help hold the spokes to the barrel. Hopefully Dymag will take care of you ASAP. For the money those rims cost there shouldn't be any issues!

jrcart

6 pounds...I guess I know what I'm buying if Dymag gives me the shaft on my current wheels.

LZH

Interesting this is happening only on the rears...only thing I can think is that during hard acceleration, the axle is trying to rip the spokes out of the barrel; thus causing the delamination of the carbon barrel. I wonder how much torque they tested these wheels with on a dyno during R&D ?? It's pretty clear that where the spokes meet the barrel is the weak point...seems that screw holding them together is either loose or not suffecient for the amount of power your are putting down. Running those MT's puts a HUGE amount of stress on your driveline, rear end, CV's etc.
Good luck getting them replaced, I see no reason why they wouldn't step up to the plate immediatly.....as you said, these wheels are very expensive and made/marketed for exactly how you are using them. If they don't step up, well, I'm sure they will get the appropriate response online. Here's hoping they stand behind their product....

blackbenzz

Baller! I call dibs on the dymags! lol But in all seriousness they should stand behind their product. I would be very surprised if they didnt. You run your MT's on a different pair of rims right?

LZH

Jim - do you run the MT's for the drags on your stock rims ?

Jim Brady

Mickey doesn't make a 19" street drag tire.

My non engineering theory is the centers are flexing under side loading which would put the most stress on the fastner points as you have two forces working on the rear, side load and the torque under acceleration. I suspect that's why Dymag is reengineering the composition of the center.

Jimmy

Addicted2Speed

I'm no expert, but wheels containing carbon fiber outer sections are not used any racing, meaning they probably aren't as strong as full forged magnesium wheels. As far as that 6lb full-carbon wheel, how the heck can it support the weight of a car for any extended period of time

jrcart

The Mickey Thompsons are not being run on Dymag wheels, I had a set of 17" Forgelines made for the MT"s. The only tire I have run on the Dymags are the Corsas. As for the HP, I'm sure they are running these wheels on cars with more than 505 whp, in the grand scheme of things 505 hp is really not all that much. I have not even sprayed the car while the Dymags were on it.

jrcart

Jim, this very same theory passed through my dense skull, however the more I thought about it, the less sence it makes. I am only seeing this failure on the rear wheels, I would assume the load/side load on the front wheels would be far greater under braking and/or cornering that on the rears, correct?? I'm no engineer, but I would think the braking as well as corning load on the front wheels would be at least twice as much as is delivered to the rear wheels under accleration.

MACHC5

Maybe the rears where made on a Monday or Friday....

jrcart

VERY GOOD NEWS...I just opened up an e-mail from Brad at Evosport, it appears Dymag is going to stand behind their product. They are asking me to dis-mount the wheels and ship them to them, they are even providing a Fed-Ex number. Brad said something about them replacing them with a "newer compound" or something wheel???

I will keep everyone posted, but their speedy and positive responce is a very very good sign.

SeeKlasse

thats great jr ... companies who make upscale products are proud of their work and will often stand behind it. dymag clearly makes a good quality product and they dont want to lose a potential future buyer of their fine products.

MJ50

and 12,000 pesos...

LZH

That's good news, Jim. I think Jimmy is correct, and on the same theory I was discussing...The torque combined with the side loading seems to be causing the spokes to flex under heavy loads. You're simply putting alot of power to the ground very effeciently - the weak link is where the power is transferred through the spokes, to the wheel itself. Good to know Dymag is standing behind their product.