Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Wed Oct 18, 2017 9:03 am

All times are UTC+01:00





Post new topic  Reply to topic  [ 33 posts ]  Go to page 1 2 3 Next
Author Message
PostPosted: Fri Dec 23, 2016 4:00 am 
Offline

Joined: Wed Aug 01, 2012 12:53 am
Posts: 1
Kindly comment if you or a friend experience this. Scary I might say...catastrophe waiting to happen.
Image

Sent from my Redmi 4 using Tapatalk


Top
   
Posted: Fri Dec 23, 2016 4:00 am 


Top
   
 
PostPosted: Fri Dec 23, 2016 4:15 am 
Offline

Joined: Thu Aug 06, 2015 12:37 pm
Posts: 43
Location: NC
Replaced one two weeks ago for a client for the same thing. It's not the first was ultergra


Top
   
PostPosted: Fri Dec 23, 2016 4:20 am 
Offline

Joined: Thu Feb 19, 2004 9:58 am
Posts: 605
Sh!t happens.

_________________
____o
_`\<,_
(*)/ (*)


Top
   
PostPosted: Fri Dec 23, 2016 10:25 am 
Offline
User avatar

Joined: Wed Dec 14, 2011 2:47 pm
Posts: 157
Location: Hong Kong
These always happen in Taiwan :
http://www.mobile01.com/topicdetail.php?f=316&t=4849613


Top
   
PostPosted: Fri Dec 23, 2016 2:12 pm 
Offline

Joined: Thu Mar 08, 2012 11:43 pm
Posts: 3311
That's impressive! Though given the sheer number of 6800 chain sets out there the failure rate must be microscopic still,

Ref Taiwan, are you thinking that lightweight Aluminium chain sets have more of a weakness in countries that are very hot and very wet?


Top
   
PostPosted: Fri Dec 23, 2016 5:54 pm 
Offline

Joined: Thu Jul 14, 2011 10:10 pm
Posts: 247
Must be something in glue/bonding method susceptible to failure in wet and hot conditions


Top
   
PostPosted: Fri Dec 23, 2016 6:19 pm 
Offline
User avatar

Joined: Wed Oct 31, 2007 10:32 pm
Posts: 8448
Location: Los Feliz, Los Angeles, California
But that's impossible! Shimano components are infallible and perfect!
That must be photoshop!

(sarcasm)

_________________
Exp001 || Other projects in the works.


Top
   
PostPosted: Fri Dec 23, 2016 8:37 pm 
Offline

Joined: Wed Feb 03, 2010 1:31 am
Posts: 654
The new crank arm on the right looks good. But the pedal looks like garbage. Does this rider drag the bike for hours every day with the pedal in gravel? How does a pedal get to look like that? Broken crank on left. Breaking the tip of the rank off is not good. But the whole crank arm looks like he dipped it in acid every day for a year and pounded on it with a hammer and roughed it up with a grinder. The chainring looks like it is sort of newish. But the crank arm? No wonder it broke. Despite the broken crank arm, this is a much better picture of bike part abuse and how to destroy bike parts. I would never blame Shimano for this.


Top
   
PostPosted: Fri Dec 23, 2016 8:48 pm 
Offline
User avatar

Joined: Wed Oct 31, 2007 10:32 pm
Posts: 8448
Location: Los Feliz, Los Angeles, California
^^^^^^

Now that's sarcasm!

_________________
Exp001 || Other projects in the works.


Top
   
PostPosted: Fri Dec 23, 2016 8:52 pm 
Offline

Joined: Fri May 25, 2007 6:43 pm
Posts: 3257
The crank arm on the right is the front half of the hollowtech forging. The left hand is the inside/back half of the forging.

You'd need the parts in front of you to work out the actual failure mode.

But, at a guess, I'd put this at shimanos door. Probably a slip up in the forging process .


Top
   
PostPosted: Fri Dec 23, 2016 8:52 pm 
Offline

Joined: Fri May 25, 2007 6:43 pm
Posts: 3257
prendrefeu wrote:
^^^^^^

Now that's sarcasm!
nah. Just not looking at the picture carefully enough.


Top
   
PostPosted: Fri Dec 23, 2016 9:03 pm 
Offline
User avatar

Joined: Sun Nov 07, 2010 9:14 pm
Posts: 4696
It's just cosmetic.

_________________
Colnago C60 - PR99
C59 Five Years Later
My Special Colnago EPQ
Trek Emonda SL Campagnolo SR


Top
   
PostPosted: Fri Dec 23, 2016 9:17 pm 
Offline

Joined: Sat Jul 29, 2006 2:36 am
Posts: 1353
Location: UK
RussellS wrote:
The new crank arm on the right looks good. But the pedal looks like garbage. Does this rider drag the bike for hours every day with the pedal in gravel? How does a pedal get to look like that? Broken crank on left. Breaking the tip of the rank off is not good. But the whole crank arm looks like he dipped it in acid every day for a year and pounded on it with a hammer and roughed it up with a grinder. The chainring looks like it is sort of newish. But the crank arm? No wonder it broke. Despite the broken crank arm, this is a much better picture of bike part abuse and how to destroy bike parts. I would never blame Shimano for this.


You say some very strange things..............


Top
   
PostPosted: Fri Dec 23, 2016 9:38 pm 
Offline

Joined: Fri Jul 18, 2008 8:25 pm
Posts: 272
Location: UK
Calnago wrote:
It's just cosmetic.

Bit more than cosmetic, but luckily the failure mode is ideal to simply Loctite it back in place.


Top
   
Posted: Fri Dec 23, 2016 9:38 pm 


Top
   
 
PostPosted: Fri Dec 23, 2016 9:53 pm 
Offline

Joined: Sun Oct 05, 2014 11:51 pm
Posts: 1235
do you even watts bro?


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 33 posts ]  Go to page 1 2 3 Next

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Sram eTap cranksets

[ Go to page: 1 2 3 ]

in Road

mattinnc

36

3143

Sun Jul 23, 2017 2:45 pm

Y26 View the latest post

There are no new unread posts for this topic. Switching quarq powermeter between specialized cranksets

in Road

Louie

5

924

Sun Nov 06, 2016 2:04 pm

topflightpro View the latest post

There are no new unread posts for this topic. Attachment(s) Garmin Vector failure

in Road

jpanspac

12

1513

Sun Aug 13, 2017 3:29 am

NGtim View the latest post

There are no new unread posts for this topic. Di2 Rear Derailleur failure during Windmill Century

in Road

tantra

7

854

Mon Jul 17, 2017 9:19 pm

tantra View the latest post

There are no new unread posts for this topic. Shimano 9100 c40/c60

in Road

TacoShoppe

1

1288

Mon Nov 07, 2016 1:16 am

oreoboreo View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Baidu [Spider], Yahoo [Bot] and 29 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited