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Author Topic: Am I the Pontius Pilate of this CX500?  (Read 6465 times)

Offline der_nanno

  • Posts: 358
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    • Greasy Greg
Re: Am I the Pontius Pilate of this CX500?
« Reply #50 on: Dec 30, 2017, 11:31:11 »
Those flanges look simple enough to copy...  :)
Real freedom starts with the freedom of thought.

My Blog:
http://greasygreg.blogspot.co.at

My Mule TR1.1 build here on DTT:
http://www.dotheton.com/forum/index.php?topic=75458.0

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Offline cxman

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Re: Am I the Pontius Pilate of this CX500?
« Reply #51 on: Dec 30, 2017, 12:52:31 »
they may be simple to copy and that is what is happening

but i have seen some crack already from flexing from the spoke holes out

and i have seen a few loose

spoke wheels flex a lt and need constant checking

i wont use these on a build even if a customer buys them i wont install them just my opinion
1978 CX650 Super Deluxe
1979 XS1100 Special
1974 xl350
1983 cx650 Custom
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1974 kawasaki 350 bighorn
1983 GL1100 aspy full dress
1983 GL1100 Nekid
and a bunch of others

Offline der_nanno

  • Posts: 358
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    • Greasy Greg
Re: Am I the Pontius Pilate of this CX500?
« Reply #52 on: Dec 30, 2017, 16:56:34 »
From an engineer's point of view: Material selection will be important, the design itself is rather simple in CAD.
Real freedom starts with the freedom of thought.

My Blog:
http://greasygreg.blogspot.co.at

My Mule TR1.1 build here on DTT:
http://www.dotheton.com/forum/index.php?topic=75458.0

My Turbo TR1.1 (XV1000) build here on DTT:
http://www.dotheton.com/forum/index.php?topic=72571

My XS Triple Sidecar build here on DTT:
http://www.dotheton.com/forum/index.php?topic=74211

Offline Odontologist

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Re: Am I the Pontius Pilate of this CX500?
« Reply #53 on: Dec 30, 2017, 17:50:44 »
From an engineer's point of view: Material selection will be important, the design itself is rather simple in CAD.

I agree with you der_nanno - as long as you have an understanding of the material's properties and the stresses involved, why not? If you don't, you can either ask someone who knows, or buy from someone who does.

After all, this forum is partly about choppin'n'changing. If it's dangerous conditions that are at issue, I would say that more catastophies occur from riders smiling so much that their brains turn off, rather than mechanical catastrophic failures. But I don't know that for certain!
Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build

Offline Odontologist

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Re: Am I the Pontius Pilate of this CX500?
« Reply #54 on: Dec 30, 2017, 17:58:03 »
they may be simple to copy and that is what is happening

but i have seen some crack already from flexing from the spoke holes out

and i have seen a few loose

spoke wheels flex a lt and need constant checking

i wont use these on a build even if a customer buys them i wont install them just my opinion

Fair comment CXman, you obviously have a lot of experience with these bikes.

But when you say you won't use these, and that you've seen some crack, are you specifically referring to those supplied by CRK? The reason I'm asking is that if that is not the case, the comment may end up damaging someone's business, even if you qualify it with a "my opinion" at the end. This is not an attack on your comment, but I feel it requires clarification.

Please note I have no financial or other association with CRK - merely a satisfied customer.
Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build

Offline cxman

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Re: Am I the Pontius Pilate of this CX500?
« Reply #55 on: Dec 30, 2017, 18:25:45 »
here is the issue

no one has done a stress test on any of these discs they are not an "engineered solution"

that was arrived at by calculating the strength or field testing or non destructive testing required for any other wheel

they are sold as a accessory yet are what you stake your life on and you do the installation of

you bought them and are installing them and think they ar ea great thing

but have no idea about the flex and torsional twist a spoke suffers

and how important it is for the spoke holes to be champhered exactly how the spoke faces ect

last but no least i did not mean to imply that crk just copied someones spoke plates

but they copied the idea that motosynthesis brought out years ago

and they do crack


 



1978 CX650 Super Deluxe
1979 XS1100 Special
1974 xl350
1983 cx650 Custom
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1974 kawasaki 350 bighorn
1983 GL1100 aspy full dress
1983 GL1100 Nekid
and a bunch of others

Offline Odontologist

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  • Umina Beach, Australia....Where does that part go?
Re: Am I the Pontius Pilate of this CX500?
« Reply #56 on: Dec 30, 2017, 18:39:04 »
You are right of course CXman. I don't have any idea so I rely on the knowledge and experience of others. I won't be selling this bike, so I will be able to inspect and react for the life of the bike whilst I live. Thanks for you insights.
Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build

Offline cxman

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Re: Am I the Pontius Pilate of this CX500?
« Reply #57 on: Dec 30, 2017, 20:16:30 »
Do keep an eye on them and i wish you a lifetime of joy

And safety
1978 CX650 Super Deluxe
1979 XS1100 Special
1974 xl350
1983 cx650 Custom
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1974 kawasaki 350 bighorn
1983 GL1100 aspy full dress
1983 GL1100 Nekid
and a bunch of others

Offline The Limey

  • Posts: 398
  • Evil English Villain
Re: Am I the Pontius Pilate of this CX500?
« Reply #58 on: Dec 31, 2017, 03:41:09 »
Although chicks find the danger sexy, so there's a balance to be struck ;)
I was born a rocker.  I'll die a rocker.  And I'm proud of it.

Offline Odontologist

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Re: Am I the Pontius Pilate of this CX500?
« Reply #59 on: Dec 31, 2017, 03:51:12 »
Although chicks find the danger sexy, so there's a balance to be struck ;)

Spot on.
But this is going to be a single seater, so if you're referring to poultry sitting on my shoulder..................
Run out of zip ties? Dental floss is an excellent alternative.

1982 Honda CX500 Roadster build