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Old 08-03-10, 08:14 PM   #21
yorkie_chris
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Default Re: So what do you all think of DID chains?

But they were still selling defective chains whether you could duck out of the claim or not.
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Old 08-03-10, 08:20 PM   #22
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Default Re: So what do you all think of DID chains?

No, we recalled all the 525 and 530 VM chain still on the shelf from everyone we'd supplied it to as soon as we knew there was a problem, and replaced it with known good chain from a different batch.
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Old 08-03-10, 08:23 PM   #23
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Default Re: So what do you all think of DID chains?

But one already fitted is subject to warranty conditions?
That makes no sense, if a part is recalled as defective then the defect is present no matter what state it is in.

Lack of lubrication will not reduce the tensile strength of the sideplates, they are not a wear item.
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Old 08-03-10, 09:30 PM   #24
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Default Re: So what do you all think of DID chains?

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Originally Posted by yorkie_chris View Post
But one already fitted is subject to warranty conditions?
That makes no sense, if a part is recalled as defective then the defect is present no matter what state it is in.

Lack of lubrication will not reduce the tensile strength of the sideplates, they are not a wear item.
So what you're saying is the extra heat caused by running a dry unlubed and possibly rusty chain won't affect the sideplates and pins then?
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Old 08-03-10, 09:46 PM   #25
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Default Re: So what do you all think of DID chains?

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Originally Posted by Spanner Man View Post
That would be about right for an old stock chain. Despite it doing 30k it shouldn't have cracked a sideplate.

YC. The sideplates were cracking in all directions. Some had cracked from the pin outwards, & some had cracked along the length of the sideplate between the pins. This is what lead me to believe that the sideplates had been over stressed when they were pressed on during manufacture.

The worst one I had, was a 530 VM from a Bandit 600 that had 13 cracked plates, not including the one that snapped, or the one next to it that got mangled
Looks like it was a 50VM, ie it was a 530VM, broke December 2006.

Here we go, the rust / condition btw is because it had sat outside in the rain for 6 months after I took it off, I took the picture just before I took it down the tip.



This was the state of the chain when it was fitted


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Old 08-03-10, 09:53 PM   #26
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Default Re: So what do you all think of DID chains?

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So what you're saying is the extra heat caused by running a dry unlubed and possibly rusty chain won't affect the sideplates and pins then?
Where do I say that?

If the pins have failed in shear then there is a strong case to say a lack of lubrication allowed wear to weaken the pins to the point of failure. This is a completely separate failure mode to the one the recall was for.

If it is a heat problem then that suggests the fit of the sideplates was far too tight causing stresses in the material. Heating could cause expansion beyond the stress the plate could take.

Are you suggesting that the poorly maintained chains ran hot enough to seriously weaken the material of the sideplate? That is a hot chain. I do not believe use could put sufficient heat into the sideplate to cause this. If it did you'd see obvious heat damage like blue finish and melting O rings.



Spanner Man says the cracks were moving radially outward from the hole, not necessarily vertically on a link. Would you say this is accurate?
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Old 08-03-10, 10:59 PM   #27
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Default Re: So what do you all think of DID chains?

I'd say we;re arguing over incidents that occured 10 years ago and make no odds to what is supplied today.

Move on.

Honda have made some utterly crap bikes, but people still buy Honda. Suzuki have done the same, Yamaha, Kawasaki, Triumph have all had problems, but people still buy their bikes. Why make such an example of DID chain. It's bloody good kit, amongst the best in the world and you won't buy it because 10 years ago there was a batch of it that snapped on occasion.

Get your head out of your ar5e and open your bloody eyes, and see how daft you're being
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Old 08-03-10, 11:04 PM   #28
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Default Re: So what do you all think of DID chains?

Who says what I will and will not buy? That makes no difference to argument.

Reasons engineered parts fail are interesting to me, you pull your head out of your ar5e and go read a material science textbook
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Old 08-03-10, 11:20 PM   #29
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Default Re: So what do you all think of DID chains?

Quote:
Originally Posted by Lozzo View Post
I'd say we;re arguing over incidents that occured 10 years ago and make no odds to what is supplied today.
2006 isn't 10 years ago. 2004 when I bought it is closer but still not 10 years.

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Old 09-03-10, 12:06 AM   #30
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Default Re: So what do you all think of DID chains?

Bought in 2004 means it might possibly be one that slipped the net in 2001 and been on a dealer's shelf, or even more likely, it's a counterfeit chain. DID, like so many premium brands of all sorts of products, have their counterfeiters.
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