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Wheel failures?

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Old Apr 20, 2019 | 10:51 AM
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Default Wheel failures?

How many people have had wheel failures with their OEM wheels?

I saw another instance of the inside barrel swelling in evenly spaced intervals. Rear wheel at COTA. I spoke to Forgeline about it and they said it's common. But I don't see it discussed here much. It would help get these things warrantied if there were more documented cases of it.

I just bought another set of Forgelines and tucked my OEM wheels away.
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Old Apr 20, 2019 | 12:20 PM
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Is this the second case we see in RL? Not sure we ever saw the final outcome of the other RL member that had this problem a long time ago.
Since switching to Forgeline for track there's no going back to OEM...will do the same on the 718 GT4.
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Old Apr 20, 2019 | 01:12 PM
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Originally Posted by ShakeNBake
How many people have had wheel failures with their OEM wheels?

I saw another instance of the inside barrel swelling in evenly spaced intervals. Rear wheel at COTA. I spoke to Forgeline about it and they said it's common. But I don't see it discussed here much. It would help get these things warrantied if there were more documented cases of it.


I just bought another set of Forgelines and tucked my OEM wheels away.
i had one of my rear forgelines do the same thing - the inner barrel appears wavy and bent. I didn’t notice it on track. I only noticed it when I changed tires after an event. I’m debating on trying to have it repaired, buying another single wheel or just driving on it. I’m hesitant about the latter option - just don’t know if the structural integrity is still there.
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Old Apr 20, 2019 | 04:17 PM
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Was it a competition ("R") model? Did you talk to Steve at Forgeline about it?
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Old Apr 20, 2019 | 04:21 PM
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Originally Posted by ShakeNBake
Was it a competition ("R") model? Did you talk to Steve at Forgline about it?
Yes, it is a GS1R. No, I havent talked to anyone ay Forgeline - you think they might warranty it or something?
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Old Apr 20, 2019 | 04:30 PM
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Originally Posted by 911therapy
Yes, it is a GS1R. No, I havent talked to anyone ay Forgeline - you think they might warranty it or something?
pretty sure GS1Rs has warranty that includes track use, I would contact them.
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Old Apr 20, 2019 | 04:42 PM
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Originally Posted by 911therapy
Yes, it is a GS1R. No, I havent talked to anyone ay Forgeline - you think they might warranty it or something?
I think they would try to make things right, and would absolutely want to see it. The put these on cup cars and club sports.
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Old Apr 20, 2019 | 04:57 PM
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Originally Posted by ShakeNBake
I think they would try to make things right, and would absolutely want to see it. The put these on cup cars and club sports.
Thanks guys - I'll give it a shot
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Old Apr 20, 2019 | 05:05 PM
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Not mine, GT4.
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Old Apr 20, 2019 | 07:43 PM
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I never ran the OEM wheels but switched to O-Z 19" originally. No issues except for brake caliper clearance. Switched to CCW 19" and lots of track days with no issue.
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Old Apr 21, 2019 | 12:04 PM
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Probably close to 50% of my track time was on the OEM wheels before switching to Forgeline.....didn't have any issues
That photo above of the black wheel is a catastrophic failure......DId it hit something?
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Old Apr 21, 2019 | 07:52 PM
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^ Sure looks like that factory GT4 wheel hit something. Look at the lip.

The only time I've seen a factory wheel fail in 20+ years of testing on road and track was a 997.1 GT3 RS wheel that had a spoke broken clean through. Almost didn't notice it...was checking tire pressures and spotted it. Turned out a magazine had taken the car for an excursion off of a track in SoCal—which explained the strange rock chips on the back of the front fender flares....
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Old Apr 22, 2019 | 05:11 PM
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Originally Posted by ShakeNBake
I just bought another set of Forgelines and tucked my OEM wheels away.
Did you consider Finspeed located right there in Austin?
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Old Apr 23, 2019 | 10:23 AM
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Originally Posted by stout
The only time I've seen a factory wheel fail in 20+ years of testing on road and track was a 997.1 GT3 RS wheel that had a spoke broken clean through. Almost didn't notice it...was checking tire pressures and spotted it. Turned out a magazine had taken the car for an excursion off of a track in SoCal—which explained the strange rock chips on the back of the front fender flares....
Glad you saw it!

Fuchs fail pretty frequently if they've been tracked for a while. Age and fatigue. Many wheels fail, cast, forged, aluminum alloy, magnesium, etc. Generally a forged wheel is going to be a better choice.
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Old Apr 23, 2019 | 04:16 PM
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^ Me too! Was tricky to spot on a dirty black wheel, but what looked like dried brake dust was a crack in the paint that was a through and through break in one spoke only. Hadn't seen anything like it, and called PCNA immediately, as it was their car. "Do you want us to send a flatbed?" they asked. I told them I could get it through the short drive back to the warehouse, and that's where it went. Returned with four new wheels and tires a few days later.

Good point about Fuchs. Was thinking about the later factory wheels, but you are no doubt right about old Fuchs—particularly around the lugs. I assigned a story on that while at Panorama. Club racing is asking a lot of a 30+year-old road wheel with a shrouded history. I suspect some of the cause for those failures is age/use/impacts, but I also have to think the loads from modern tires exceed anything Fuchs were developed for...
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