ADVrider

Go Back   ADVrider > Riding > Face plant
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 07-05-2011, 02:55 PM   #226
lemieuxmc
Banned
 
lemieuxmc's Avatar
 
Joined: Mar 2009
Location: East La Jolla... it's just Clairemont!!
Oddometer: 3,360
"an overload fracture does not refer solely to the use of the product, rather the actual strength of the product compared to it's load. A faulty design or manufacture can be overloaded in normal intended use."

Ding, Ding, Ding... we have a winner!

And now you understand why I am so vocal on this topic.

The owners of the bikes in question may be obligated to remain silent on the subject, but the collective memory of Advrider is unstoppable.

Now if I happen to notice a black 740i with two guys in black suits and shades parked in front of my house... !
lemieuxmc is offline   Reply With Quote
Old 07-05-2011, 02:55 PM   #227
Unca Fud
nrpetersen
 
Unca Fud's Avatar
 
Joined: Apr 2006
Location: Minnetonka MN
Oddometer: 236
Looks to this MechEngr as a very brittle fracture, with a crack possibly initiating at a defect.

The raw aluminum castings are most certainly heat treated by heating to a certain temp (like ~800 degF or more,) quench in cold water, and then reheat to ~300 degF to age harden.

Brittle fractures can be caused by over aging in the heat treat process. BTDT.

Get a metallurgist involved.
Unca Fud is offline   Reply With Quote
Old 07-05-2011, 03:28 PM   #228
Benesesso
Beastly Adventurer
 
Benesesso's Avatar
 
Joined: Jul 2008
Location: West of Phoenix, Arizona
Oddometer: 9,898
Quote:
Originally Posted by dwayne View Post
Don't touch them, don't clean them, protect them from further damage, but I'm not a metallurgist.
Well I am, and agree with you. I should have advised this in my first post.
__________________
US out of the UN, UN out of the US.
Benesesso is offline   Reply With Quote
Old 07-05-2011, 03:33 PM   #229
Benesesso
Beastly Adventurer
 
Benesesso's Avatar
 
Joined: Jul 2008
Location: West of Phoenix, Arizona
Oddometer: 9,898
Quote:
Originally Posted by Unca Fud View Post
Looks to this MechEngr as a very brittle fracture, with a crack possibly initiating at a defect.

The raw aluminum castings are most certainly heat treated by heating to a certain temp (like ~800 degF or more,) quench in cold water, and then reheat to ~300 degF to age harden.

Brittle fractures can be caused by over aging in the heat treat process. BTDT.

Get a metallurgist involved.
Keep in mind that most cast alum. alloys are rather brittle even when heat treated correctly. That said, brittle metals can perform very well under stress--consider the very brittle cast iron engine blocks that survive millions of power strokes /stress cycles w/o failing.

What they lack is the ability to deform w/o breaking under overloads. No overloads, no casting defects, etc., no problems.
__________________
US out of the UN, UN out of the US.

Benesesso screwed with this post 07-05-2011 at 03:51 PM
Benesesso is offline   Reply With Quote
Old 07-05-2011, 06:03 PM   #230
llamapacker
Mr. Conservative
 
llamapacker's Avatar
 
Joined: Oct 2007
Location: Doyline, Louisiana
Oddometer: 1,168
I could weld that right up with TIG, probably last forever. But this thread is not about that.

She really liked the bike! Now we all dislike big bad BMW, but she did really like the bike. How about pay her and give her a new bike, but let one of BMW's gear heads ride it for 100 miles first.

If she doesn't trust the bike, let BMW install some nice WR forks, we all know they work!
__________________
14 KTM 1190 Adventure
14 500xc-w
llamapacker is offline   Reply With Quote
Old 07-06-2011, 08:19 AM   #231
k7
Ancien cyclist
 
k7's Avatar
 
Joined: Jul 2002
Location: SOP - south of Phoenix, hotter n hell
Oddometer: 18,628
Quote:
Originally Posted by antiquewidow View Post
I have posted this thread to make others aware of what has happened to me. To others to check their forks. To try & figure out how this incident could of happened.

The way I look at past cases is if previous OP were paid off by BMW to be silenced. Then who is the quilty one (The OP or BMW)
If I had nothing to hide I know I wouldnt be wasting my money on shutting up someone no matter what they have said.
Everyone is entitled to their opinion & story and if the negatism & comments toward a product werent true, then why would a company try to shut someone up & waste their money.
We've all seen similar instances where people's silence was bought off. I commend the job that you're doing and hope that BMW does the right thing by you too. Clearly, you're a victim here and I'm so sorry that it occured - you deserve much, much better.
__________________
Cheers,
Gerry
PHX AZ
k7 is offline   Reply With Quote
Old 07-06-2011, 09:03 AM   #232
SocalRob
Beastly Adventurer
 
SocalRob's Avatar
 
Joined: May 2006
Location: Los Angeles @ base of Angeles Crest Hwy
Oddometer: 12,795
It would be interesting to contact Beemer Boneyard and find out if wrecked bikes come in with broken or bent forks. I would hope forks fail by bending myself. Seems a bad product design to have them fail by breaking.
__________________
Rob

'07 White (the coolest color) GSA rider
'13 Husky Strada & '14 KTM 690 Enduro
SocalRob is offline   Reply With Quote
Old 07-06-2011, 09:15 AM   #233
slide
A nation in despair
 
Joined: Jul 2003
Location: NM, USA
Oddometer: 21,120
Quote:
Originally Posted by SocalRob View Post
Seems a bad product design to have them fail by breaking.
Yeah. I'd say you have a point there.
__________________
Why be born again when you can just grow up?
slide is offline   Reply With Quote
Old 07-06-2011, 04:59 PM   #234
antiquewidow OP
Adventurer
 
Joined: Jun 2011
Location: UPPER NYS
Oddometer: 68
Quote:
Originally Posted by SocalRob View Post
It would be interesting to contact Beemer Boneyard and find out if wrecked bikes come in with broken or bent forks. I would hope forks fail by bending myself. Seems a bad product design to have them fail by breaking.
Are you volunteering to contact the Beemer Boneyard?
antiquewidow is offline   Reply With Quote
Old 07-06-2011, 05:25 PM   #235
viverrid
not dead yet
 
Joined: Jan 2004
Location: Western Mass
Oddometer: 30,482
Quote:
Originally Posted by Rick G View Post
Note to the OP, I only mentioned the wheelie aspect as I am certain you will be asked during the investigation....
It doesn't f*cking matter one damned bit, you should be able to wheelie that bike up and down all day long without a critical part suffering a brittle failure like that. There is no way that a new rider doing an unintentional wheelie should be able to break a part like that, even if the rider did wheelie. You could say "yeah, I did ten wheelies in a row" and it is STILL a defective part.
__________________
Advanced pancreatic cancer found 04/2010. Have outlived +/- 97% of patients with this diagnosis, but 08/2013 cancer now in liver, vascular system and lungs with 20+ lung tumors. Sick/weak sometimes, not riding much. No more treatments & now under Hospice care.
viverrid is offline   Reply With Quote
Old 07-06-2011, 05:49 PM   #236
See-Double-You
Beastly Adventurer
 
See-Double-You's Avatar
 
Joined: Sep 2003
Location: Anchorage, AK
Oddometer: 1,665
Point of order: the F/G 650GS isn't exactly a wheelie monster.
__________________
CW
" Suggest you stick with failure analysis of Pork Chops " - -Benesesso
See-Double-You is offline   Reply With Quote
Old 07-06-2011, 06:39 PM   #237
Rte2Rider
Adventurer
 
Joined: Jun 2011
Oddometer: 22
For Dwayne.... thanks very much for your thoughts regarding options for upgraded forks.
Rte2Rider is offline   Reply With Quote
Old 07-06-2011, 09:23 PM   #238
spafxer
Beastly Adventurer
 
spafxer's Avatar
 
Joined: Mar 2007
Oddometer: 2,548
If it's not the front, maybe it's the rear.

I was in the local shop today and looked at a 650GS front fork. It does look like a re design after the last fork snappage re design...

The manufacture process reminds me of what I saw when Snooker snapped his swingarm on gentle whoops in last years LA Barstow, Vegas..

German engineering needs a bit of up grading... IMHO

spafxer is offline   Reply With Quote
Old 07-06-2011, 10:52 PM   #239
lemieuxmc
Banned
 
lemieuxmc's Avatar
 
Joined: Mar 2009
Location: East La Jolla... it's just Clairemont!!
Oddometer: 3,360
WOW!

What a POS!
lemieuxmc is offline   Reply With Quote
Old 07-07-2011, 12:21 AM   #240
SocalRob
Beastly Adventurer
 
SocalRob's Avatar
 
Joined: May 2006
Location: Los Angeles @ base of Angeles Crest Hwy
Oddometer: 12,795
Quote:
Originally Posted by antiquewidow View Post
Are you volunteering to contact the Beemer Boneyard?
No, but it might be a path for you/your attorney to explore.
__________________
Rob

'07 White (the coolest color) GSA rider
'13 Husky Strada & '14 KTM 690 Enduro
SocalRob is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 04:26 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014