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chain wear test video



 
 
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  #1  
Old January 25th 18, 03:00 PM posted to rec.bicycles.tech
AMuzi
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Posts: 13,447
Default chain wear test video

https://www.youtube.com/watch?v=H4cz-JgbOP4

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

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  #2  
Old January 25th 18, 08:18 PM posted to rec.bicycles.tech
[email protected]
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Posts: 824
Default chain wear test video

On Thursday, January 25, 2018 at 3:00:36 PM UTC+1, AMuzi wrote:
https://www.youtube.com/watch?v=H4cz-JgbOP4

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


I have different results. Only the SRAM chain was worse than the Connex 9sp SX I tested.

Lou
  #3  
Old January 25th 18, 10:11 PM posted to rec.bicycles.tech
Joerg[_2_]
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Posts: 6,016
Default chain wear test video

On 2018-01-25 06:00, AMuzi wrote:
https://www.youtube.com/watch?v=H4cz-JgbOP4


1% is a bit much. I try not to go past 0.8% because then cassette damage
will start.

Wippermann chains are good but at least in the 7-8 speed domain I found
that Sachs-Sedis chains beat them by a lot. Unfortunately those have
become unobtanium. Also, from what I have seen a Wippermann 10-speed
stainless chain is over $50 even while on sale. I can get two KMC chains
for that.

One gripe I have with such tests is that they do not properly emulate
the high pulsating peak load a chain is exposed to, including phases
where a clyde is standing in the pedals riding up a steep hill.

Regarding grit it's not so much sand that a chain is exposed to while
offroad. Rather it is wet mud flinging onto the chain and everything
else, often almost for the whole ride.

--
Regards, Joerg

http://www.analogconsultants.com/
  #4  
Old January 25th 18, 11:46 PM posted to rec.bicycles.tech
JBeattie
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Posts: 5,870
Default chain wear test video

On Thursday, January 25, 2018 at 11:18:27 AM UTC-8, wrote:
On Thursday, January 25, 2018 at 3:00:36 PM UTC+1, AMuzi wrote:
https://www.youtube.com/watch?v=H4cz-JgbOP4

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


I have different results. Only the SRAM chain was worse than the Connex 9sp SX I tested.

SRAM sux. Based on that review, I was going to run out and buy a Connex 11sp chain -- until I noticed it was $90 USD. What justifies that price? Chain inflation is totally out of line with other products.

I just bought a replacement 105 crank for my commuter for $95 from PBK. I was using a SRAM Red crank scrapped from my broken SuperSix, but the pedal thread insert cracked through the end of the CF crank. Total POS and, of course, out of warranty. So I got a crank that cost $5 more than a Connex 11sp chain.

There's a lot of sexy stuff on the market, but I end up going back to Shimano or KMC chains and generally Shimano drivetrains. I'm through with SRAM chains because they wear like Kleenex.

-- Jay Beattie.
  #5  
Old January 25th 18, 11:53 PM posted to rec.bicycles.tech
Tim McNamara
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Posts: 6,945
Default chain wear test video

On Thu, 25 Jan 2018 14:46:39 -0800 (PST), jbeattie
wrote:

SRAM sux. Based on that review, I was going to run out and buy a
Connex 11sp chain -- until I noticed it was $90 USD. What justifies
that price? Chain inflation is totally out of line with other
products.


Because profitability. Look, like many industries bike and component
makers generate money by selling a small number of overpriced products
to a small number of suckers. Oops, I mean customers. You know, the
guys with 40 lbs of beer gut paying $5000 to save 1 lb of bike weight.
Oh how I resemble that remark...
  #6  
Old January 26th 18, 01:48 AM posted to rec.bicycles.tech
Joerg[_2_]
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Posts: 6,016
Default chain wear test video

On 2018-01-25 14:53, Tim McNamara wrote:
On Thu, 25 Jan 2018 14:46:39 -0800 (PST), jbeattie
wrote:

SRAM sux. Based on that review, I was going to run out and buy a
Connex 11sp chain -- until I noticed it was $90 USD. What justifies
that price? Chain inflation is totally out of line with other
products.


Because profitability. Look, like many industries bike and component
makers generate money by selling a small number of overpriced products
to a small number of suckers. Oops, I mean customers.



However, there are discerning customers who have blacklists. One company
that made it on there now is CST. Their Conquistare road tires won't
even last 1200mi in this area. The one I currently have on the rear also
developed tiny cracks that you see in 15 year old car tires with 60000mi
on them. Except this tire is almost new and under 1000mi. So when I have
used up all CST tires here I will never buy that brand again.


... You know, the
guys with 40 lbs of beer gut paying $5000 to save 1 lb of bike weight.
Oh how I resemble that remark...


If its any comfort I have a slight beer belly as well that won't go away
no matter how much I ride. Not 40lbs though.

--
Regards, Joerg

http://www.analogconsultants.com/
  #7  
Old January 26th 18, 02:02 AM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 13,447
Default chain wear test video

On 1/25/2018 4:53 PM, Tim McNamara wrote:
On Thu, 25 Jan 2018 14:46:39 -0800 (PST), jbeattie
wrote:

SRAM sux. Based on that review, I was going to run out and buy a
Connex 11sp chain -- until I noticed it was $90 USD. What justifies
that price? Chain inflation is totally out of line with other
products.


Because profitability. Look, like many industries bike and component
makers generate money by selling a small number of overpriced products
to a small number of suckers. Oops, I mean customers. You know, the
guys with 40 lbs of beer gut paying $5000 to save 1 lb of bike weight.
Oh how I resemble that remark...


Not everyone can rock that look, considering the size 13
team gear shortage:

https://firstloser.files.wordpress.c...6/fatbiker.jpg

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


  #8  
Old January 26th 18, 02:34 AM posted to rec.bicycles.tech
John B.[_3_]
external usenet poster
 
Posts: 5,697
Default chain wear test video

On Thu, 25 Jan 2018 13:11:33 -0800, Joerg
wrote:

On 2018-01-25 06:00, AMuzi wrote:
https://www.youtube.com/watch?v=H4cz-JgbOP4


1% is a bit much. I try not to go past 0.8% because then cassette damage
will start.

Wippermann chains are good but at least in the 7-8 speed domain I found
that Sachs-Sedis chains beat them by a lot. Unfortunately those have
become unobtanium. Also, from what I have seen a Wippermann 10-speed
stainless chain is over $50 even while on sale. I can get two KMC chains
for that.

One gripe I have with such tests is that they do not properly emulate
the high pulsating peak load a chain is exposed to, including phases
where a clyde is standing in the pedals riding up a steep hill.

Regarding grit it's not so much sand that a chain is exposed to while
offroad. Rather it is wet mud flinging onto the chain and everything
else, often almost for the whole ride.


I think that is exactly the point. The "wear test" chains all appear
to be clean, aligned chains running under what appears to be an
optimum tension, which is hardly the conditions that an actual
bicycle chain is subjected to. While they might be considered as
indicative, but certainly when adding purchase cost into the equation
may well not point to the "best buy for a buck". Which is, it appears,
the aim of the usual cyclist.

--
Cheers,

John B.

  #9  
Old January 26th 18, 03:12 AM posted to rec.bicycles.tech
JBeattie
external usenet poster
 
Posts: 5,870
Default chain wear test video

On Thursday, January 25, 2018 at 5:02:19 PM UTC-8, AMuzi wrote:
On 1/25/2018 4:53 PM, Tim McNamara wrote:
On Thu, 25 Jan 2018 14:46:39 -0800 (PST), jbeattie
wrote:

SRAM sux. Based on that review, I was going to run out and buy a
Connex 11sp chain -- until I noticed it was $90 USD. What justifies
that price? Chain inflation is totally out of line with other
products.


Because profitability. Look, like many industries bike and component
makers generate money by selling a small number of overpriced products
to a small number of suckers. Oops, I mean customers. You know, the
guys with 40 lbs of beer gut paying $5000 to save 1 lb of bike weight.
Oh how I resemble that remark...


Not everyone can rock that look, considering the size 13
team gear shortage:

https://firstloser.files.wordpress.c...6/fatbiker.jpg


Yes, but after a year of riding he'll look like Mario Cipollini! http://keyassets.timeincuk.net/inspi...Mario002pp.jpg

-- Jay Beattie.


  #10  
Old January 26th 18, 05:02 AM posted to rec.bicycles.tech
John B.[_3_]
external usenet poster
 
Posts: 5,697
Default chain wear test video

On Thu, 25 Jan 2018 16:48:47 -0800, Joerg
wrote:

On 2018-01-25 14:53, Tim McNamara wrote:
On Thu, 25 Jan 2018 14:46:39 -0800 (PST), jbeattie
wrote:

SRAM sux. Based on that review, I was going to run out and buy a
Connex 11sp chain -- until I noticed it was $90 USD. What justifies
that price? Chain inflation is totally out of line with other
products.


Because profitability. Look, like many industries bike and component
makers generate money by selling a small number of overpriced products
to a small number of suckers. Oops, I mean customers.



However, there are discerning customers who have blacklists. One company
that made it on there now is CST. Their Conquistare road tires won't
even last 1200mi in this area. The one I currently have on the rear also
developed tiny cracks that you see in 15 year old car tires with 60000mi
on them. Except this tire is almost new and under 1000mi. So when I have
used up all CST tires here I will never buy that brand again.


Are those CST tires China Made? I've never seen them sold here (not
that they aren't) the "cheap tires" here all seem to be local made and
aren't particularly prone to cracking.




... You know, the
guys with 40 lbs of beer gut paying $5000 to save 1 lb of bike weight.
Oh how I resemble that remark...


If its any comfort I have a slight beer belly as well that won't go away
no matter how much I ride. Not 40lbs though.

--
Cheers,

John B.

 




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