On 9/24/2010 10:42 AM, Dirk Beer wrote: On Sat, Sep 11, 2010 at 10:42 PM, Dirk Beer wrote: > On Fri, Sep 10, 2010 at 11:54 AM, revmaaatin wrote: >> >> Just curious-- >> 1.were there any broken spokes >> 2. have you been flying this bike. smile. = hard impacts following moments of accelerated gravatational experiments > > No broken spokes, I'll try to take a picture tomorrow & send it. Here's a picture of my cracked rim for your enjoyment: http://picasaweb.google.com/rdbeer/CrackedRim?authkey=Gv1sRgCJPrlpLU1piEWQ&feat=directlink Dirk
helmet cam video just on fox news nklr
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front wheel replacement?
Nasty cracks. Can you do some scanning electron microscopy (SEM) for us to look at? It might be inter granular failure due to improper heat treatment or metal contamination in the part.
Mostly kidding, but it's possible.
http://books.google.com/books?id=iEeiQEeLOmYC&pg=PA64&lpg=PA64&dq=aluminum+igc&source=bl&ots=EHqaRYQ-Sg&sig=76Ui3MsrYORvA-grObiIcGnUAxw&hl=en&ei=OeecTMz5FZOcsQP70uzVAQ&sa=X&oi=book_result&ct=result&resnum=3&ved=0CCIQ6AEwAg#v=onepage&q=aluminum%20igc&f=false
That is definitely more than one crack though. So it wasn't a "one hit wonder". I would say that it's a defect in the material or in the fabrication. It would be good to see the other side and that SEM would be fun too. Maybe you could get the manufacturer to care about it (prolly not).
Robert P. Wichert P.Eng +1 916 966 9060 FAX +1 916 966 9068 ========================================================
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front wheel replacement?
Mostly kidding, but it's possible. Would love to be able to do that. http://books.google.com/books?id=iEeiQEeLOmYC&pg=PA64&lpg=PA64&dq=aluminum+igc&source=bl&ots=EHqaRYQ-Sg&sig=76Ui3MsrYORvA-grObiIcGnUAxw&hl=en&ei=OeecTMz5FZOcsQP70uzVAQ&sa=X&oi=book_result&ct=result&resnum=3&ved=0CCIQ6AEwAg#v=onepage&q=aluminum%20igc&f=false That is definitely more than one crack though. So it wasn't a "one hit wonder". I would say that it's a defect in the material or in the fabrication. It would be good to see the other side and that SEM would be fun too. Maybe you could get the manufacturer to care about it (prolly not). Yes, that was my thought, too (that it was unlikely to have happened just because of one or two hard hits). The crack was not really visible on the other side to begin with. Now that I've removed the spoke tension, even the main crack is less obvious. DirkOn Fri, Sep 24, 2010 at 11:05 AM, RobertWichert wrote: Nasty cracks. Can you do some scanning electron microscopy (SEM) for us to look at? It might be inter granular failure due to improper heat treatment or metal contamination in the part.
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front wheel replacement?
It is possible that those spokes were either too tight or too loose (either could do it) and the wheel flexed excessively in that area and those are short cycle fatigue cracks. If the spokes are too tight, the stress on the wheel is excessive and the high stress leads to early fatigue failure. If the spokes are too loose, that section of the wheel moves more than it should, and the resulting high stress fails it the same way for a different reason.
I am still tending towards a material problem though. I wonder how the hardness compares to the standard.
Too hard can lead to IGC failure in many cases.
Robert P. Wichert P.Eng +1 916 966 9060 FAX +1 916 966 9068 ========================================================
Mostly kidding, but it's possible. Would love to be able to do that. http://books.google.com/books?id=iEeiQEeLOmYC&pg=PA64&lpg=PA64&dq=aluminum+igc&source=bl&ots=EHqaRYQ-Sg&sig=76Ui3MsrYORvA-grObiIcGnUAxw&hl=en&ei=OeecTMz5FZOcsQP70uzVAQ&sa=X&oi=book_result&ct=result&resnum=3&ved=0CCIQ6AEwAg#v=onepage&q=aluminum%20igc&f=false That is definitely more than one crack though. So it wasn't a "one hit wonder". I would say that it's a defect in the material or in the fabrication. It would be good to see the other side and that SEM would be fun too. Maybe you could get the manufacturer to care about it (prolly not). Yes, that was my thought, too (that it was unlikely to have happened just because of one or two hard hits). The crack was not really visible on the other side to begin with. Now that I've removed the spoke tension, even the main crack is less obvious. DirkOn 9/24/2010 12:11 PM, Dirk Beer wrote: On Fri, Sep 24, 2010 at 11:05 AM, RobertWichert wrote: Nasty cracks. Can you do some scanning electron microscopy (SEM) for us to look at? It might be inter granular failure due to improper heat treatment or metal contamination in the part.
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front wheel replacement?
WOW!
Well, I am sure you have heard your fill on why it may have happened. Now onto the important part...What to upgrade with for replacement parts.
Call these guys
Cycle Gear, 6280 S. Pecos Rd. (702) 435-0635
These guys showed me a wheel builder out of Salt Lake City that builds some great aluminum rims and hubs. Spoke thickness of your choice. Color of your choice. They have a set on the sales floor and boy do this set look good. Lighter, thicker and stronger than stock.
I may switch to a 18 rear and 19 front on my next tire change.
Whatever you buy will most likely have to be shipped anyway...Upgrade time!
--- In DSN_KLR650@yahoogroups.com, Dirk Beer wrote: > > On Sat, Sep 11, 2010 at 10:42 PM, Dirk Beer wrote: > > On Fri, Sep 10, 2010 at 11:54 AM, revmaaatin wrote: > >> > >> Just curious-- > >> 1.were there any broken spokes > >> 2. have you been flying this bike. smile. = hard impacts following moments of accelerated gravatational experiments > > > > No broken spokes, I'll try to take a picture tomorrow & send it. > > Here's a picture of my cracked rim for your enjoyment: > > http://picasaweb.google.com/rdbeer/CrackedRim?authkey=Gv1sRgCJPrlpLU1piEWQ&feat=directlink > > Dirk >
helmet cam video just on fox news nklr
Doesn't have anything to do with public officials performing public
duties either. Matters not since the Internet is the great leveler of
playing fields
-----Original Message-----
From: k650@... [mailto:k650@...]
Sent: Thursday, September 30, 2010 11:15 AM
To: Eckert, Christopher (Infrastructure Solutions Dept.);
DSN_KLR650@yahoogroups.com
Subject: Helmet cam video just on FOX NEWS NKLR
The wiretap laws that are allegedly being broken have to do with sound
recordings and have nothing to do with video recording unless it
includes sound.
Walt
-----Original Message-----
From: DSN_KLR650@yahoogroups.com [mailto:DSN_KLR650@yahoogroups.com] On
Behalf Of skypilot110
Sent: Thursday, September 30, 2010 10:07
To: DSN_KLR650@yahoogroups.com
Subject: [DSN_KLR650] Re: Helmet cam video just on FOX NEWS
F him, Neopolotano and his states Neo Nazis can kiss my hairy back side.
I just mounted a goPro under the GPS plate on my handle bars where it is
not noticeable and I can turn it on without doing so being noticed. The
record LED has been covered too. I will video everything from now on and
if anybody has a problem with it I will do everything I can to make the
video they dont like go viral. I think everybody should do the same to
let the world know they need to act resposibly since someone is always
watching.
To any Cops on the list I appologize ahead of time but video mode is now
on and staying that way. Welcome to the information age!
--- In DSN_KLR650@yahoogroups.com, Keith Pipkins wrote: > > Judge Neopolotano(sic) stated the police plan to continue arrest until > the law is declared illegal. > Keith, AR ------------------------------------ List sponsored by Dual Sport News at: www.dualsportnews.com List FAQ courtesy of Chris Krok at: www.bigcee.com/klr650faq.html Member Map at: http://www.frappr.com/dsnklr650Yahoo! Groups Links ************************************************************ This communication, including attachments, is for the exclusive use of addressee and may contain proprietary, confidential and/or privileged information. If you are not the intended recipient, any use, copying, disclosure, dissemination or distribution is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this communication and destroy all copies. ************************************************************
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