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Old 11-04-2003, 10:36 PM   #1
J.Yo
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Exclamation Crack in Rota Subzero

Hello everyone. I found a crack in one of my Subzeros this past weekend. I have informed Rota, and here is part of the letter I sent:

I purchased a set of Rota Zubzeros on 4/2/02 for my 2002 Subaru Impreza WRX and have used them only from the months of May to October each year; they are my "summer" set. I went to put on my stock wheels this past weekend and I noticed a crack in one of the Subzeros. I have taken pictures of the cracked wheel and the back side of the wheel so you have the batch and manufacturing information. I would be willing to send the wheel back to you for you examination, at your expense. You will find that the wheel is not dented. Based on my research, I have found that you have had issues with your Attack model also. I just wanted to make you aware that my Subzeros are exhibiting the same problem. I have owned aftermarket wheels with every car I have owned and this is the first wheel to have failed. Based on your company's history of cracked wheels and my first hand experience now, I will be informing the WRX community of my experience so they may be able to monitor their Subzeros for their own safety.

That pretty much says it all. I just wanted to let you guys know, so you can check on your wheels periodically if you own Subzeros. I've seen pictures of what has happened to other WRX owners when their wheels fail, so I consider myself fortunate that I noticed it before it got worse. I would have included pictures, but I just read that the posting feature has been temporarily disabled.
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Old 11-04-2003, 10:58 PM   #2
Penphoe
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OMGHi2U

Attachments are back up! Please post a picture for us.

I hope things get resolved soon!

LaterZ!
Darren!!
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Old 11-04-2003, 11:19 PM   #3
rota wheels wrx
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Just give us a call at 510 786 1726 and we will get thing sorted out for you and we will also examine the wheels to see what the cause of the problem is.
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Old 11-05-2003, 07:30 AM   #4
nhluhr
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Quote:
Originally posted by rota wheels wrx
Just give us a call at 510 786 1726 and we will get thing sorted out for you and we will also examine the wheels to see what the cause of the problem is.
Can you even ask for better customer service than that? 2 thumbs up for Rota!

I think this brings the total number of cracked Rotas to like 4 or 5? Not too bad considering the vast numbers of them that are out there.
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Old 11-05-2003, 12:09 PM   #5
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Quote:
Originally posted by rota wheels wrx
Just give us a call at 510 786 1726 and we will get thing sorted out for you and we will also examine the wheels to see what the cause of the problem is.
Wow! I'm always amazed at how nice Rota customer service is. :thumbup: x eleventy billion

No wheels are indestructable. Even though I roll on Subzeros currently, I am glad to be a Rota customer.
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Old 11-05-2003, 05:36 PM   #6
gerbs
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planning on purchasing a set of 17" subzeros when spring time is here

i hope mine don't crack

awesome to see fast cust. service right from the manufacturer though - he wasn't even trying to achieve a response from Rota here. hah! *applause*
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Old 11-05-2003, 08:49 PM   #7
SnoozinScooby
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Rota rocks!

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Old 11-05-2003, 10:17 PM   #8
J.Yo
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Here are the pictures I took.
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Old 11-05-2003, 10:18 PM   #9
J.Yo
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another.
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Old 11-05-2003, 10:44 PM   #10
judgegavel
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It goes to show you get what you pay for.
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Old 11-05-2003, 10:54 PM   #11
Kartoffel
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That's a pretty big chunk on the side of a spoke. Did a rock hit it or something?
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Old 11-05-2003, 11:54 PM   #12
white98sh
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that spoke is cracked all the way through and not at a stress point either. does rota do any xray tests for QA?

and obviously if a rock could do that to a wheel then it's a problem with the wheel, not the rock.
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Old 11-06-2003, 12:45 AM   #13
Kartoffel
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Quote:
Originally posted by white98sh
that spoke is cracked all the way through and not at a stress point either.
That surprised me, and that's why I'm wonderin' if it was a rock. Of course, if there was a flaw in the casting at that point it could have easily led to a crack.

If Rota's casting process is based on good practices and their failure rate is low, then they could probably get away without x-raying. However, if I was Rota I'd be sure to stress test and QC the hell out of the first batch of every new wheel style.

Subzeros have been around for a while, though, and there are a zillion people rolling on them (myself included). There's always the possibility for a flaw in the casting, or a rock. Hard to say without looking at that wheel up close.

Disclaimer: I am not a lawyer, but I am an engineer and a six sigma quality geek. (ph33r!!1)
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Old 11-06-2003, 01:05 AM   #14
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Quote:
Originally posted by Kartoffel
That surprised me, and that's why I'm wonderin' if it was a rock. Of course, if there was a flaw in the casting at that point it could have easily led to a crack.

If Rota's casting process is based on good practices and their failure rate is low, then they could probably get away without x-raying. However, if I was Rota I'd be sure to stress test and QC the hell out of the first batch of every new wheel style.

Subzeros have been around for a while, though, and there are a zillion people rolling on them (myself included). There's always the possibility for a flaw in the casting, or a rock. Hard to say without looking at that wheel up close.

Disclaimer: I am not a lawyer, but I am an engineer and a six sigma quality geek. (ph33r!!1)
All wheels casted pass through an x ray. Furthermore, our melt is tested every 4 hours on the spectrometer to insure consisitent chemical composition. Every T-6 batch is also checked for hardness.

I also want to see the wheel before we know what happenned. Further analysis like grain structure etc.. and we will find more.

I am also puzzled by the chip cause stress cracks that we see under cornering fatigue tests dont chip off. But I am not an engineer.

But my point is we need to take care of the customer, I also will post the report on how the wheels failed, wether sometjing hit it or was it a casting flaw like porosities.
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Old 11-06-2003, 02:00 AM   #15
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Kudo's to Rota.


I've got a set of 1st-gen Subzeros. They're off my car right now. not because they're damaged, but because it's winter time!

I can't wait to swap them on in the spring. They're sooo much lighter than my 15" Speedlines.

LaterZ!
Darren!!
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Old 11-06-2003, 07:44 AM   #16
mav1c
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Same exact thing happened to mine. Informed Rota and got a whole new set. The new set has held up great.
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Old 11-06-2003, 07:02 PM   #17
gerbs
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mav1c, did you have the old (first generation subzero?)
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Old 11-06-2003, 09:31 PM   #18
Zornorph
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I have heard of a few cracks and failures, but I will be buying some Tarmac II's for my STi soon. From what I have seen, any wheel can have a problem, and Rota seems to be extremely responsive.

THANKS ROTA.
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Old 11-08-2003, 12:01 PM   #19
judgegavel
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Exclamation

Its great that Rota replaces their wheels when this happans, but why would you want another set if this has been such a common problem (this is at least the sixth example I've seen on this board and thats only a fraction of their customer base) I would worry about saftey with every set. While I understand people like Rotas because they are cheap, and look nice, everyone should be aware that we are talking about a very important part of the car where being cheap can be dangerous.
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Old 11-08-2003, 12:40 PM   #20
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Quote:
Originally posted by judgegavel
Its great that Rota replaces their wheels when this happans, but why would you want another set if this has been such a common problem (this is at least the sixth example I've seen on this board and thats only a fraction of their customer base) I would worry about saftey with every set. While I understand people like Rotas because they are cheap, and look nice, everyone should be aware that we are talking about a very important part of the car where being cheap can be dangerous.

Thing is, not all Rotas have this problem. A few scattered examples of each casting probably exist, yet most of the failures came from the first casting of the Attacks. I'm sure all wheel manufacturers have a few flaws in their wheels, we just don't hear about them very often. I remember hearing about someone's O.Z. losing a chunk out of the side (but it still held air). They replaced the wheel, b/c it was a manufacturer's defect.


Just my $.02
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Old 11-08-2003, 12:54 PM   #21
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Quote:
Originally posted by judgegavel
Its great that Rota replaces their wheels when this happans, but why would you want another set if this has been such a common problem (this is at least the sixth example I've seen on this board and thats only a fraction of their customer base) I would worry about saftey with every set. While I understand people like Rotas because they are cheap, and look nice, everyone should be aware that we are talking about a very important part of the car where being cheap can be dangerous.
You're correct that nasioc is only a fraction of the customer base of Rota, but think of the thousands of wheels that are out there! Let's say that there are 1000 Rota wheels out there on nasioc. With only 6 failures, the percentage calculation of failures is 6/1000 or 0.6%! Not very likely that a wheel is going to fail. This of course is just a simple example. You can make stats say anything you want with the right numbers.

Also, Gary Sheehan raced his WRX using Rota Subzeros. I don't think he races with Rotas anymore, but when he did, he didn't have any problems with them.

If anything is true about Rota - the company - any wheel that has failed, they have done something about it!

LaterZ!
Darren!!
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Old 11-08-2003, 09:07 PM   #22
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Well put.
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Old 11-09-2003, 10:53 AM   #23
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6 in 1000 when talking saftey is not good, but I would say its probably even more than that. I shouldnt just be picking on Rota but they are the most obvious example, Light weight cast wheels are dangerous, especially when a company is probably skimping to sell the wheels as cheap as they can. If your using them for track use, and check them ever time thats fine. But, for a daily driver, dealing with pot holes and speed bumps I think they are the wrong way to go as there is the possibility (be it 6 in a 1000, or 1 in 10,000) of faliure at one of the most critical parts of your car. IMHO if you want skimp on gas or oil, or even hoses or exausts, fine. But the last place on your car to skimp is the wheel (brakes-rims-tires). While the chance of something terrible happening is very small, its still should be a factor, more than how good your car looks for $500 as opposed to $1500.
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Old 11-09-2003, 09:47 PM   #24
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Quote:
Originally posted by judgegavel
6 in 1000 when talking saftey is not good, but I would say its probably even more than that. I shouldnt just be picking on Rota but they are the most obvious example, Light weight cast wheels are dangerous, especially when a company is probably skimping to sell the wheels as cheap as they can. If your using them for track use, and check them ever time thats fine. But, for a daily driver, dealing with pot holes and speed bumps I think they are the wrong way to go as there is the possibility (be it 6 in a 1000, or 1 in 10,000) of faliure at one of the most critical parts of your car. IMHO if you want skimp on gas or oil, or even hoses or exausts, fine. But the last place on your car to skimp is the wheel (brakes-rims-tires). While the chance of something terrible happening is very small, its still should be a factor, more than how good your car looks for $500 as opposed to $1500.
i think ur commom maybe a little bias. while u might have some $1500 rims on ur car, not everyone else has $1500 to spend on wheels. even tho the subzeros on my car havent crack yet, if they ever crack, as long as rota replaces them for free, i aint complaining. what ur saying is like comparing a Civic to a M3. have u ever read Car&Driver's 10 best cars of the year? why can they have a civic as a best car of the year while a M3 is? we all know M3 is a good car, but can u say a civic isnt? Rota and big companies like Volk, BBS, SSR target at different consumers. when u r on a tight buget, spend five six hundred dollars and u get urself some goodlooking, light weight rims. if u have the big money to spend, go with Volks. i was on a tight buget, i rather spend more money to get some SO2 to go with my rotas than have some SSR to sit on some Kuhmo 712s.
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Old 11-09-2003, 09:50 PM   #25
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one more thing, u havent seen Volks Racing rims crack have u? i have.
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