Just look at all the latest crap on ebay
#24
Maybe if they posted some crash pics like Hard dog does it would help with some credibility.
Hard Dog Roll Bars - Customer Testimonials
I'm happy with the choice I made. I would rather skimp in another department rather than the safety one.
Hard Dog Roll Bars - Customer Testimonials
I'm happy with the choice I made. I would rather skimp in another department rather than the safety one.
#25
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I don't think they are using stainless, its to expensive. spec miata cage is 1.5" .095 DOM mild steel tube last time i checked, but that was a while ago. I went with .120 wall when I built my cage. You don't know if they are using pipe, HERW tubing or DOM tubing. and there is a HUGE difference, I wouldn't touch a roll bar I couldn't see being built, That's why I build my own.
#31
That's the business right there.
As far as Chinese materials are concerned, I will step up and say that I do know. I work for a fastener manufacturer that sells to all the big oil companies. In the last couple of years we have begun sourcing parts from China, and producing less of our own. We have tried to find viable supply chains, with decent Quality departments, and have found it nearly impossibly. We still do all of our own testing, and 20% of the Chinese material fails. Consistently.
This **** is Engineering Materials 101. We ask for B7, we get something that is waaaay off the HRB scale, and the 12ft nominal bars have cracks at the end. The Charpy Impact tests are just plain entertaining sometimes.
Then when the material is right, the dimensions are wrong. They have no idea what ASME standards are, and they consistently screw up orders.
Chinese made ANYTHING was crap when I was a kid, and still is. And it still will be as long as there are dumbasses that will buy it, including our previous Operations Manager that thought it would be a good idea to stock up on 2,500 pallets of Chinese fasteners.
[/red China hatin']
I would consider an eGay rollbar a style bar, and a poseur piece.
If you want to look like you race, and appear to be safety conscious, get one...
I personally wouldn't waste the shipping dollars and installation time.
#32
I can tell you that not ALL Chinese material and metalwork is ****. The largest AISC-certified structural steel fabrication yard is in China. It's bigger than anything we have ever had, even during our reign as steel king. I visited it this past fall for some inspections; they are VOLUNTARILY asking for further inspections and testing, trying to build our (USA) trust in their work. They're building some of the steel piers for the new Bay Bridge, and they're damn nice. Want to see an army of America-certified 5000+ Chinese welders? It's impressive.
I know that this example is on a whole different level of production than the rinky-dink "factories" making ebay car parts, but you can't blast the whole country's manufacturing capability.
I know that this example is on a whole different level of production than the rinky-dink "factories" making ebay car parts, but you can't blast the whole country's manufacturing capability.
#34
EDIT: If 20% of our parts failed, we wouldn't have a single contract with the likes of Exxon-Mobil, Aramco etc. But they pay us for quality more than they do for parts...
Btw, you think a warranty on a Chinese turbo is hard to cash in, try returning 500+ tons of cheap Chinese fasteners.
#35
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There is further shittiness about the roll bar that hasn't been mentioned, and should be in case some cash-strapped or just plain retarded noob is pondering "saving $200" by getting that POS versus a bar from a reputable manufacturer with a proven track record.
A 2mm wall thickness is inadequate by itself, but even if it was 1.75" 1/8" wall DOM, the basic design would still be crap. As ZX-Tex mentioned, the way it mounts to the car is not particularly sound. It bolts only to one plane of the unibody structure, whereas crash-proven bars on the market also attach to the seat belt tower and the unibody again in the vertical plane, making it far more sturdy under the forces likely to occur in a rollover. Technically, the POS bar only has two mounting points (they are large, but there are only two of them) so it would not pass tech with track groups that require 4-pt bars.
The basic fit will also be crap. It looks pretty tall, yet they claim it will fit with a hardtop. That's probably because it's Sofa King narrow that it's nowhere near the full width of the interior. The uprights are behind the center line of the seats, which creates another safety issue. How are you going to attach the outboard shoulder straps (driver's left and passenger's right)? Any way you do it will be suboptimal because the harness bar isn't wide enough.
I know that when I think "safety," the number one brand that comes to mind is ilovetacotaco.
A 2mm wall thickness is inadequate by itself, but even if it was 1.75" 1/8" wall DOM, the basic design would still be crap. As ZX-Tex mentioned, the way it mounts to the car is not particularly sound. It bolts only to one plane of the unibody structure, whereas crash-proven bars on the market also attach to the seat belt tower and the unibody again in the vertical plane, making it far more sturdy under the forces likely to occur in a rollover. Technically, the POS bar only has two mounting points (they are large, but there are only two of them) so it would not pass tech with track groups that require 4-pt bars.
The basic fit will also be crap. It looks pretty tall, yet they claim it will fit with a hardtop. That's probably because it's Sofa King narrow that it's nowhere near the full width of the interior. The uprights are behind the center line of the seats, which creates another safety issue. How are you going to attach the outboard shoulder straps (driver's left and passenger's right)? Any way you do it will be suboptimal because the harness bar isn't wide enough.
I know that when I think "safety," the number one brand that comes to mind is ilovetacotaco.
#37
No offense, but if its welded properly and mounts properly like the name brand roll bars what would make this item any inferior? Just doesn't make sense to me, its just a bunch of piping welded together: pretty straightforward. I'll be making my own, so I have no interest in it, just doesn't look that bad at all quality wise.
Here are the instructions for the HD for better clarification
Miata Hard Core and M2 Hard Core Bar Installation Instructions
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